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Repository: lp6m/yolov5s_android
Branch: master
Commit: cef737ceb9fb
Files: 77
Total size: 62.9 MB
Directory structure:
gitextract_67cfm_6g/
├── .gitmodules
├── LICENSE.md
├── README.md
├── app/
│ ├── README.md
│ └── tflite_yolov5_test/
│ ├── .gitignore
│ ├── .idea/
│ │ ├── .gitignore
│ │ ├── compiler.xml
│ │ ├── gradle.xml
│ │ ├── jarRepositories.xml
│ │ ├── misc.xml
│ │ ├── runConfigurations.xml
│ │ └── vcs.xml
│ ├── app/
│ │ ├── .gitignore
│ │ ├── CMakeLists.txt
│ │ ├── build.gradle
│ │ ├── proguard-rules.pro
│ │ └── src/
│ │ ├── androidTest/
│ │ │ └── java/
│ │ │ └── com/
│ │ │ └── example/
│ │ │ └── tflite_yolov5_test/
│ │ │ └── ExampleInstrumentedTest.java
│ │ ├── main/
│ │ │ ├── AndroidManifest.xml
│ │ │ ├── cpp/
│ │ │ │ ├── nms.h
│ │ │ │ └── postprocess.cpp
│ │ │ ├── java/
│ │ │ │ └── com/
│ │ │ │ └── example/
│ │ │ │ └── tflite_yolov5_test/
│ │ │ │ ├── ImageProcess.java
│ │ │ │ ├── MainActivity.java
│ │ │ │ ├── PathUtils.java
│ │ │ │ ├── TfliteRunMode.java
│ │ │ │ ├── TfliteRunner.java
│ │ │ │ ├── camera/
│ │ │ │ │ ├── CameraActivity.java
│ │ │ │ │ ├── CameraConnectionFragment.java
│ │ │ │ │ ├── DetectorActivity.java
│ │ │ │ │ ├── LegacyCameraConnectionFragment.java
│ │ │ │ │ ├── env/
│ │ │ │ │ │ ├── BorderedText.java
│ │ │ │ │ │ └── ImageUtils.java
│ │ │ │ │ └── tracker/
│ │ │ │ │ └── MultiBoxTracker.java
│ │ │ │ └── customview/
│ │ │ │ ├── AutoFitTextureView.java
│ │ │ │ └── OverlayView.java
│ │ │ └── res/
│ │ │ ├── drawable/
│ │ │ │ ├── ic_dashboard_black_24dp.xml
│ │ │ │ ├── ic_home_black_24dp.xml
│ │ │ │ ├── ic_launcher_background.xml
│ │ │ │ └── ic_notifications_black_24dp.xml
│ │ │ ├── drawable-v24/
│ │ │ │ └── ic_launcher_foreground.xml
│ │ │ ├── layout/
│ │ │ │ ├── activity_camera.xml
│ │ │ │ ├── activity_main.xml
│ │ │ │ └── tfe_od_camera_connection_fragment_tracking.xml
│ │ │ ├── menu/
│ │ │ │ └── bottom_nav_menu.xml
│ │ │ ├── mipmap-anydpi-v26/
│ │ │ │ ├── ic_launcher.xml
│ │ │ │ └── ic_launcher_round.xml
│ │ │ ├── navigation/
│ │ │ │ └── mobile_navigation.xml
│ │ │ ├── values/
│ │ │ │ ├── colors.xml
│ │ │ │ ├── dimens.xml
│ │ │ │ ├── strings.xml
│ │ │ │ └── themes.xml
│ │ │ └── values-night/
│ │ │ └── themes.xml
│ │ └── test/
│ │ └── java/
│ │ └── com/
│ │ └── example/
│ │ └── tflite_yolov5_test/
│ │ └── ExampleUnitTest.java
│ ├── build.gradle
│ ├── gradle/
│ │ └── wrapper/
│ │ ├── gradle-wrapper.jar
│ │ └── gradle-wrapper.properties
│ ├── gradle.properties
│ ├── gradlew
│ ├── gradlew.bat
│ └── settings.gradle
├── benchmark/
│ └── README.md
├── convert_model/
│ ├── README.md
│ └── quantize.py
├── docker/
│ └── Dockerfile
├── host/
│ ├── README.md
│ ├── cococlass.txt
│ ├── detect.py
│ ├── detector_head.py
│ ├── evaluate.py
│ ├── metric.py
│ ├── postprocess.py
│ ├── results/
│ │ ├── android_result.json
│ │ └── host_result.json
│ └── runner.py
└── tflite_model/
├── yolov5s_fp32_320.tflite
├── yolov5s_fp32_640.tflite
├── yolov5s_int8_320.tflite
└── yolov5s_int8_640.tflite
================================================
FILE CONTENTS
================================================
================================================
FILE: .gitmodules
================================================
[submodule "yolov5"]
path = yolov5
url = https://github.com/ultralytics/yolov5
================================================
FILE: LICENSE.md
================================================
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section 13, concerning interaction through a network will apply to the
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14. Revised Versions of this License.
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Each version is given a distinguishing version number. If the
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If the Program specifies that a proxy can decide which future
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15. Disclaimer of Warranty.
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APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
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USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
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PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
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17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.
================================================
FILE: README.md
================================================
# yolov5s_android:rocket:
<div align="center">
<img src="https://github.com/lp6m/yolov5s_android/raw/media/android_app.gif" width=30%>
<img src="https://github.com/lp6m/yolov5s_android/raw/media/screenshot.jpg" width=30%>
</div>
The implementation of yolov5s on android for the [yolov5s export contest](https://github.com/ultralytics/yolov5/discussions/3213).
Download the latest android apk from [release](https://github.com/lp6m/yolov5s_android/releases) and install your device.
**UPDATE:rocket: 2022/06/25** Added tutorial on how to integrate models trained with custom data. [Custom Model Intergration Tutorial](https://github.com/lp6m/yolov5s_android/issues/14)
## Environment
- Host Ubuntu18.04
- Docker
* Tensorflow 2.4.0
* PyTorch 1.7.0
* OpenVino 2021.3
- Android App
* Android Studio 4.2.1
* minSdkVersion 28
* targetSdkVersion 29
* TfLite 2.4.0
- Android Device
* Xiaomi Mi11 (Storage 128GB/ RAM8GB)
* OS MIUI 12.5.8
We use docker container for host evaluation and model conversion.
```sh
git clone --recursive https://github.com/lp6m/yolov5s_android
cd yolov5s_android
docker build ./ -f ./docker/Dockerfile -t yolov5s_android
docker run -it --gpus all -v `pwd`:/workspace yolov5s_android bash
```
## Files
- `./app`
* Android application.
* To build application by yourself, copy `./tflite_model/*.tflite` to `app/tflite_yolov5_test/app/src/main/assets/`, and build on Android Studio.
* The app can perform inference with various configurations of input size, inference accuracy, and model accuracy.
* For 'Open Directory Mode', save the detected bounding boxes results as a json file in coco format.
* Realtime deteciton from camera image (precision and input size is fixed to int8/320). Achieved FPS is about **15FPS** on Mi11.
* **NOTE** Please select image/directory as an absolute path from 'Device'. The app does not support select image/directory from 'Recent' in some devices.
- `./benchmark`
* Benchmark script and results by [TFLite Model Benchmark Tool with C++ Binary](https://github.com/tensorflow/tensorflow/tree/master/tensorflow/lite/tools/benchmark#profiling-model-operators).
- `./convert_model`
* Model conversion guide and model quantization script.
- `./docker`
* Dockerfile for the evaluation and model conversion environment.
- `./host`
* `detect.py` : Run detection for image with TfLite model on host environment.
* `evaluate.py`: Run evaluation with coco validation dataset and inference results.
- `./tflite_model`
* Converted TfLite Model.
## Performance
### Latency
These results are measured on `Xiaomi Mi11`.
Please refer [`benchmark/README.md`](https://github.com/lp6m/yolov5s_android/tree/master/benchmark) about the detail of benchmark command.
The latency does not contain the pre/post processing time and data transfer time.
#### float32 model
| delegate | 640x640 [ms] | 320x320 [ms] |
| :-------------------- | -----------: | -----------: |
| None (CPU) | 249 | 61 |
| NNAPI (qti-gpu, fp32) | 156 | 112 |
| NNAPI (qti-gpu, fp16) | 92 | 79 |
#### int8 model
We tried to accelerate the inference process by using `NNAPI (qti-dsp)` and offload calculation to Hexagon DSP, but it doesn't work for now. Please see [here](https://github.com/lp6m/yolov5s_android/tree/dev/benchmark#nnapi-qti-dsp-not-working) in detail.
| delegate | 640x640 [ms] | 320x320 [ms] |
| :------------------- | -----------: | -----------: |
| None (CPU) | 95 | 23 |
| NNAPI (qti-default) | Not working | Not working |
| NNAPI (qti-dsp) | Not working | Not working |
## Accuracy
Please refer [host/README.md](https://github.com/lp6m/yolov5s_android/tree/master/host#example2) about the evaluation method.
We set `conf_thresh=0.25` and `iou_thresh=0.45` for nms parameter.
| device, model, delegate | 640x640 mAP | 320x320 mAP |
| :-------------------------------- | ----------: | ----------: |
| host GPU (Tflite + PyTorch, fp32) | 27.8 | 26.6 |
| host CPU (Tflite + PyTorch, int8) | 26.6 | 25.5 |
| NNAPI (qti-gpu, fp16) | 28.5 | 26.8 |
| CPU (int8) | 27.2 | 25.8 |
## Model conversion
This project focuses on obtaining a tflite model by **model conversion from PyTorch original implementation, rather than doing own implementation in tflite**.
We convert models in this way: `PyTorch -> ONNX -> OpenVino -> TfLite`.
To convert the model from OpenVino to TfLite, we use [openvino2tensorflow](https://github.com/PINTO0309/openvino2tensorflow).
Please refer [convert_model/README.md](https://github.com/lp6m/yolov5s_android/tree/master/convert_model) about the model conversion.
================================================
FILE: app/README.md
================================================
# Android App
This applications uses [TFLite Android Support](https://www.tensorflow.org/lite/guide/android).
### TfliteRunner
[`TfliteRunner.java`](https://github.com/lp6m/yolov5s_android/blob/master/app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/TfliteRunner.java) is the main class for running TfLite model. Apply a delegate according to the specified running mode.
### postprocess.cpp
[`postprocess.cpp`](https://github.com/lp6m/yolov5s_android/blob/master/app/tflite_yolov5_test/app/src/main/cpp/postprocess.cpp) corresponds to the [detect layer module](https://github.com/ultralytics/yolov5/blob/master/models/yolo.py#L33) and `non_max_suppression` of original yolov5. This C++ code is called by `TfliteRunner` via JNI Interface.
### Realtime inference
For realtime inference from camera image, We copy a lot of codes from [TensorFlow Lite Object Detection Android Demo](https://github.com/tensorflow/examples/tree/master/lite/examples/object_detection/android) to `src/main/java/com/example/tflite_yolov5_test/customview, camera`.
Realtime inference is not the main topic of the contest, so please forgive me for porting the code in a messy way!
================================================
FILE: app/tflite_yolov5_test/.gitignore
================================================
*.iml
.gradle
/local.properties
/.idea/caches
/.idea/libraries
/.idea/modules.xml
/.idea/workspace.xml
/.idea/navEditor.xml
/.idea/assetWizardSettings.xml
.DS_Store
/build
/captures
.externalNativeBuild
.cxx
local.properties
app/src/main/assets/*.tflite
app/release
================================================
FILE: app/tflite_yolov5_test/.idea/.gitignore
================================================
# Default ignored files
/shelf/
/workspace.xml
================================================
FILE: app/tflite_yolov5_test/.idea/compiler.xml
================================================
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="CompilerConfiguration">
<bytecodeTargetLevel target="11" />
</component>
</project>
================================================
FILE: app/tflite_yolov5_test/.idea/gradle.xml
================================================
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="GradleMigrationSettings" migrationVersion="1" />
<component name="GradleSettings">
<option name="linkedExternalProjectsSettings">
<GradleProjectSettings>
<option name="testRunner" value="PLATFORM" />
<option name="distributionType" value="DEFAULT_WRAPPED" />
<option name="externalProjectPath" value="$PROJECT_DIR$" />
<option name="modules">
<set>
<option value="$PROJECT_DIR$" />
<option value="$PROJECT_DIR$/app" />
</set>
</option>
<option name="resolveModulePerSourceSet" value="false" />
</GradleProjectSettings>
</option>
</component>
</project>
================================================
FILE: app/tflite_yolov5_test/.idea/jarRepositories.xml
================================================
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="RemoteRepositoriesConfiguration">
<remote-repository>
<option name="id" value="central" />
<option name="name" value="Maven Central repository" />
<option name="url" value="https://repo1.maven.org/maven2" />
</remote-repository>
<remote-repository>
<option name="id" value="jboss.community" />
<option name="name" value="JBoss Community repository" />
<option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
</remote-repository>
<remote-repository>
<option name="id" value="MavenRepo" />
<option name="name" value="MavenRepo" />
<option name="url" value="https://repo.maven.apache.org/maven2/" />
</remote-repository>
<remote-repository>
<option name="id" value="BintrayJCenter" />
<option name="name" value="BintrayJCenter" />
<option name="url" value="https://jcenter.bintray.com/" />
</remote-repository>
<remote-repository>
<option name="id" value="Google" />
<option name="name" value="Google" />
<option name="url" value="https://dl.google.com/dl/android/maven2/" />
</remote-repository>
</component>
</project>
================================================
FILE: app/tflite_yolov5_test/.idea/misc.xml
================================================
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="11" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/build/classes" />
</component>
<component name="ProjectType">
<option name="id" value="Android" />
</component>
</project>
================================================
FILE: app/tflite_yolov5_test/.idea/runConfigurations.xml
================================================
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="RunConfigurationProducerService">
<option name="ignoredProducers">
<set>
<option value="com.android.tools.idea.compose.preview.runconfiguration.ComposePreviewRunConfigurationProducer" />
</set>
</option>
</component>
</project>
================================================
FILE: app/tflite_yolov5_test/.idea/vcs.xml
================================================
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
<mapping directory="$PROJECT_DIR$" vcs="Git" />
</component>
</project>
================================================
FILE: app/tflite_yolov5_test/app/.gitignore
================================================
/build
================================================
FILE: app/tflite_yolov5_test/app/CMakeLists.txt
================================================
cmake_minimum_required(VERSION 3.4.1)
add_library( # Sets the name of the library.
native-lib
# Sets the library as a shared library.
SHARED
# Provides a relative path to your source file(s).
src/main/cpp/postprocess.cpp )
# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.
find_library( # Sets the name of the path variable.
log-lib
# Specifies the name of the NDK library that
# you want CMake to locate.
log )
# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.
target_link_libraries( # Specifies the target library.
native-lib
# Links the target library to the log library
# included in the NDK.
${log-lib} )
================================================
FILE: app/tflite_yolov5_test/app/build.gradle
================================================
plugins {
id 'com.android.application'
}
android {
compileSdkVersion 29
buildToolsVersion "30.0.3"
defaultConfig {
ndk {
abiFilters 'armeabi-v7a', 'arm64-v8a'
}
applicationId "com.example.tflite_yolov5_test"
minSdkVersion 28
targetSdkVersion 29
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
externalNativeBuild {
cmake {
cppFlags "-O3"
}
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
externalNativeBuild {
cmake {
path "CMakeLists.txt"
}
}
buildFeatures {
viewBinding true
}
}
dependencies {
implementation 'org.nanohttpd:nanohttpd:2.3.1'
implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'com.google.android.material:material:1.2.1'
implementation 'androidx.constraintlayout:constraintlayout:2.0.1'
implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.2.0'
implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0'
implementation 'androidx.navigation:navigation-fragment:2.3.0'
implementation 'androidx.navigation:navigation-ui:2.3.0'
implementation 'org.tensorflow:tensorflow-lite:2.4.0'
//implementation 'org.tensorflow:tensorflow-lite:0.0.0-nightly-SNAPSHOT'
//implementation 'org.tensorflow:tensorflow-lite:0.0.0-nightly'
//implementation 'org.tensorflow:tensorflow-lite-select-tf-ops:0.0.0-nightly'
//implementation 'org.tensorflow:tensorflow-lite-gpu:0.0.0-nightly-SNAPSHOT'
//implementation 'org.tensorflow:tensorflow-lite-support:0.0.0-nightly-SNAPSHOT'
testImplementation 'junit:junit:4.+'
androidTestImplementation 'androidx.test.ext:junit:1.1.2'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
}
================================================
FILE: app/tflite_yolov5_test/app/proguard-rules.pro
================================================
# Add project specific ProGuard rules here.
# You can control the set of applied configuration files using the
# proguardFiles setting in build.gradle.
#
# For more details, see
# http://developer.android.com/guide/developing/tools/proguard.html
# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
# public *;
#}
# Uncomment this to preserve the line number information for
# debugging stack traces.
#-keepattributes SourceFile,LineNumberTable
# If you keep the line number information, uncomment this to
# hide the original source file name.
#-renamesourcefileattribute SourceFile
================================================
FILE: app/tflite_yolov5_test/app/src/androidTest/java/com/example/tflite_yolov5_test/ExampleInstrumentedTest.java
================================================
package com.example.tflite_yolov5_test;
import android.content.Context;
import androidx.test.platform.app.InstrumentationRegistry;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import org.junit.Test;
import org.junit.runner.RunWith;
import static org.junit.Assert.*;
/**
* Instrumented test, which will execute on an Android device.
*
* @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
*/
@RunWith(AndroidJUnit4.class)
public class ExampleInstrumentedTest {
@Test
public void useAppContext() {
// Context of the app under test.
Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
assertEquals("com.example.tflite_yolov5_test", appContext.getPackageName());
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/AndroidManifest.xml
================================================
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.tflite_yolov5_test">
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:requestLegacyExternalStorage="true"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/Theme.Tflite_yolov5_test">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".camera.CameraActivity" />
<activity android:name=".camera.DetectorActivity" />
</application>
</manifest>
================================================
FILE: app/tflite_yolov5_test/app/src/main/cpp/nms.h
================================================
//https://github.com/martinkersner/non-maximum-suppression-cpp/blob/master/nms.cpp
#include <vector>
#include <numeric>
#include <iostream>
using namespace std;
struct bbox{
float x1;
float y1;
float x2;
float y2;
float conf;
int class_idx;
bbox(float x1, float y1, float x2, float y2, float conf, int class_idx) :
x1(x1), y1(y1), x2(x2), y2(y2), conf(conf), class_idx(class_idx){
}
};
#define Point_XMIN 0
#define Point_XMAX 1
#define Point_YMIN 2
#define Point_YMAX 3
vector<float> GetPointFromRect(const vector<bbox> &rect,
const int pos)
{
vector<float> points;
for (const auto & p: rect) {
float point;
if (pos == Point_XMIN) point = p.x1;
else if (pos == Point_XMAX) point = p.x2;
else if (pos == Point_YMIN) point = p.y1;
else if (pos == Point_YMAX) point = p.y2;
points.push_back(point);
}
return points;
}
vector<float> ComputeArea(const vector<float> & x1,
const vector<float> & y1,
const vector<float> & x2,
const vector<float> & y2)
{
vector<float> area;
auto len = x1.size();
for (decltype(len) idx = 0; idx < len; ++idx) {
auto tmpArea = (x2[idx] - x1[idx] + 1) * (y2[idx] - y1[idx] + 1);
area.push_back(tmpArea);
}
return area;
}
vector<int> argsort_byscore(const vector<bbox> & v)
{
// initialize original index locations
vector<int> idx(v.size());
std::iota(idx.begin(), idx.end(), 0);
// sort indexes based on comparing values in v
sort(idx.begin(), idx.end(),
[&v](int i1, int i2) {return v[i1].conf < v[i2].conf;});
return idx;
}
vector<float> Maximum(const float & num,
const vector<float> & vec)
{
auto maxVec = vec;
auto len = vec.size();
for (decltype(len) idx = 0; idx < len; ++idx)
if (vec[idx] < num)
maxVec[idx] = num;
return maxVec;
}
vector<float> Minimum(const float & num,
const vector<float> & vec)
{
auto minVec = vec;
auto len = vec.size();
for (decltype(len) idx = 0; idx < len; ++idx)
if (vec[idx] > num)
minVec[idx] = num;
return minVec;
}
vector<float> CopyByIndexes(const vector<float> & vec,
const vector<int> & idxs)
{
vector<float> resultVec;
for (const auto & idx : idxs)
resultVec.push_back(vec[idx]);
return resultVec;
}
vector<int> RemoveLast(const vector<int> & vec)
{
auto resultVec = vec;
resultVec.erase(resultVec.end()-1);
return resultVec;
}
vector<float> Subtract(const vector<float> & vec1,
const vector<float> & vec2)
{
vector<float> result;
auto len = vec1.size();
for (decltype(len) idx = 0; idx < len; ++idx)
result.push_back(vec1[idx] - vec2[idx] + 1);
return result;
}
vector<float> Multiply(const vector<float> & vec1,
const vector<float> & vec2)
{
vector<float> resultVec;
auto len = vec1.size();
for (decltype(len) idx = 0; idx < len; ++idx)
resultVec.push_back(vec1[idx] * vec2[idx]);
return resultVec;
}
vector<float> Divide(const vector<float> & vec1,
const vector<float> & vec2)
{
vector<float> resultVec;
auto len = vec1.size();
for (decltype(len) idx = 0; idx < len; ++idx)
resultVec.push_back(vec1[idx] / vec2[idx]);
return resultVec;
}
vector<int> WhereLarger(const vector<float> & vec,
const float & threshold)
{
vector<int> resultVec;
auto len = vec.size();
for (decltype(len) idx = 0; idx < len; ++idx)
if (vec[idx] > threshold)
resultVec.push_back(idx);
return resultVec;
}
vector<int> RemoveByIndexes(const vector<int> & vec,
const vector<int> & idxs)
{
auto resultVec = vec;
auto offset = 0;
for (const auto & idx : idxs) {
resultVec.erase(resultVec.begin() + idx + offset);
offset -= 1;
}
return resultVec;
}
template <typename T>
vector<T> FilterVector(const vector<T> & vec,
const vector<int> & idxs)
{
vector<T> resultVec;
for (const auto & idx: idxs)
resultVec.push_back(vec[idx]);
return resultVec;
}
vector<bbox> nms(const vector<bbox> & candidates,
const float &iou_threshold)
{
if (candidates.empty()) return vector<bbox>();
// grab the coordinates of the bounding boxes
auto x1 = GetPointFromRect(candidates, Point_XMIN);
auto y1 = GetPointFromRect(candidates, Point_YMIN);
auto x2 = GetPointFromRect(candidates, Point_XMAX);
auto y2 = GetPointFromRect(candidates, Point_YMAX);
// compute the area of the bounding boxes and sort the bounding
// boxes by the bottom-right y-coordinate of the bounding box
auto area = ComputeArea(x1, y1, x2, y2);
auto idxs = argsort_byscore(candidates);
int last;
int i;
vector<int> pick;
// keep looping while some indexes still remain in the indexes list
while (idxs.size() > 0) {
// grab the last index in the indexes list and add the
// index value to the list of picked indexes
last = idxs.size() - 1;
i = idxs[last];
pick.push_back(i);
// find the largest (x, y) coordinates for the start of
// the bounding box and the smallest (x, y) coordinates
// for the end of the bounding box
auto idxsWoLast = RemoveLast(idxs);
auto xx1 = Maximum(x1[i], CopyByIndexes(x1, idxsWoLast));
auto yy1 = Maximum(y1[i], CopyByIndexes(y1, idxsWoLast));
auto xx2 = Minimum(x2[i], CopyByIndexes(x2, idxsWoLast));
auto yy2 = Minimum(y2[i], CopyByIndexes(y2, idxsWoLast));
// compute the width and height of the bounding box
auto w = Maximum(0, Subtract(xx2, xx1));
auto h = Maximum(0, Subtract(yy2, yy1));
// compute the ratio of overlap
auto overlap = Divide(Multiply(w, h), CopyByIndexes(area, idxsWoLast));
// delete all indexes from the index list that have
auto deleteIdxs = WhereLarger(overlap, iou_threshold);
deleteIdxs.push_back(last);
idxs = RemoveByIndexes(idxs, deleteIdxs);
}
return FilterVector(candidates, pick);
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/cpp/postprocess.cpp
================================================
#include <string.h>
#include <jni.h>
#include <math.h>
#include <iostream>
#include "nms.h"
using namespace std;
float sigmoid(float f){
return (float)(1.0f / (1.0f + exp(-f)));
}
float revsigmoid(float f){
const float eps = 1e-8;
return -1.0f * (float)log((1.0f / (f + eps)) - 1.0f);
}
#define CLASS_NUM 80
#define max_wh 4096
void detector(
vector<bbox>* bbox_candidates,
JNIEnv *env,
jobjectArray input,
const int gridnum,
const int strides,
const int anchorgrid[3][2],
const float conf_thresh){
float revsigmoid_conf = revsigmoid(conf_thresh);
//Warning: For now, we assume batch_size is always 1.
for(int bi = 0; bi < 1; bi++){
jobjectArray ptr_d0 = (jobjectArray)env->GetObjectArrayElement(input , bi);
for(int gy = 0; gy < gridnum; gy++){
jobjectArray ptr_d1 = (jobjectArray)env->GetObjectArrayElement(ptr_d0 ,gy);
for(int gx = 0; gx < gridnum; gx++){
jobjectArray ptr_d2 = (jobjectArray)env->GetObjectArrayElement(ptr_d1 ,gx);
auto elmptr = env->GetFloatArrayElements((jfloatArray)ptr_d2 , nullptr);
for(int ch = 0; ch < 3; ch++){
int offset = 85 * ch;
auto elmptr_ch = elmptr + offset;
//don't apply sigmoid to all bbox candidates for efficiency
float obj_conf_unsigmoid = elmptr_ch[4];
//if (sigmoid(obj_conf_unsigmoid) < conf_thresh) continue;
if (obj_conf_unsigmoid >= revsigmoid_conf) {
//get maximum conf class
float max_class_conf = elmptr_ch[5];
int max_class_idx = 0;
for(int class_idx = 1; class_idx < CLASS_NUM; class_idx++){
float class_conf = elmptr_ch[class_idx + 5];
if (class_conf > max_class_conf){
max_class_conf = class_conf;
max_class_idx = class_idx;
}
}
// class conf filter
float bbox_conf = sigmoid(max_class_conf) * sigmoid(obj_conf_unsigmoid);
//if (bbox_conf < conf_thresh) continue;
// xywh2xyxy
// batched nms (by adding class * max_wh to coordinates,
// we can get nms result for all classes by just one nms call)
//grid[gridnum][gy][gx][0] = gx
//grid[gridnum][gy][gx][1] = gy
float cx = ((sigmoid(elmptr_ch[0]) * 2.0f) - 0.5f + (float)gx) * (float)strides;
float cy = ((sigmoid(elmptr_ch[1]) * 2.0f) - 0.5f + (float)gy) * (float)strides;
float w = (sigmoid(elmptr_ch[2]) * sigmoid(elmptr_ch[2])) * 4.0f * (float)anchorgrid[ch][0];
float h = (sigmoid(elmptr_ch[3]) * sigmoid(elmptr_ch[3])) * 4.0f * (float)anchorgrid[ch][1];
float x1 = cx - w / 2.0f + max_wh * max_class_idx;
float y1 = cy - h / 2.0f + max_wh * max_class_idx;
float x2 = cx + w / 2.0f + max_wh * max_class_idx;
float y2 = cy + h / 2.0f + max_wh * max_class_idx;
bbox box = bbox(x1, y1, x2, y2, bbox_conf, max_class_idx);
bbox_candidates->push_back(box);
}
}
env->ReleaseFloatArrayElements((jfloatArray)ptr_d2, elmptr, 0);
env->DeleteLocalRef(ptr_d2);
}
env->DeleteLocalRef(ptr_d1);
}
env->DeleteLocalRef(ptr_d0);
}
env->DeleteLocalRef(input);
}
extern "C" jobjectArray Java_com_example_tflite_1yolov5_1test_TfliteRunner_postprocess (
JNIEnv *env,
jobject /* this */,
jobjectArray input1,//80x80 or 40x40
jobjectArray input2, //40x40 or 20x20,
jobjectArray input3, //20x20 or 10x10
jint input_size,
jfloat conf_thresh,
jfloat iou_thresh){
//conf
const int anchorgrids[3][3][2] = {
{{10, 13}, {16, 30}, {33, 23}}, //80
{{30, 61}, {62, 45}, {59, 119}}, //40
{{116, 90}, {156, 198}, {373, 326}} //20
};
const int strides[3] = {8, 16, 32};
vector<bbox> bbox_candidates; //TODO: reserve
//Detector
detector(&bbox_candidates, env, input1, input_size / 8, strides[0], anchorgrids[0], conf_thresh);
detector(&bbox_candidates, env, input2, input_size / 16, strides[1], anchorgrids[1], conf_thresh);
detector(&bbox_candidates, env, input3, input_size / 32, strides[2], anchorgrids[2], conf_thresh);
//non-max-suppression
vector<bbox> nms_results = nms(bbox_candidates, iou_thresh);
//return 2-dimension array [detected_box][6(x1, y1, x2, y2, conf, class)]
jobjectArray objArray;
jclass floatArray = env->FindClass("[F");
if (floatArray == NULL) return NULL;
int size = nms_results.size();
objArray = env->NewObjectArray(size, floatArray, NULL);
if (objArray == NULL) return NULL;
for(int i = 0; i < nms_results.size(); i++){
int class_idx = nms_results[i].class_idx;
float x1 = nms_results[i].x1 - class_idx * max_wh;
float y1 = nms_results[i].y1 - class_idx * max_wh;
float x2 = nms_results[i].x2 - class_idx * max_wh;
float y2 = nms_results[i].y2 - class_idx * max_wh;
float conf = nms_results[i].conf;
float boxres[6] = {x1, y1, x2, y2, conf, (float)class_idx};
jfloatArray iarr = env->NewFloatArray((jsize)6);
if (iarr == NULL) return NULL;
env->SetFloatArrayRegion(iarr, 0, 6, boxres);
env->SetObjectArrayElement(objArray, i, iarr);
env->DeleteLocalRef(iarr);
}
return objArray;
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/ImageProcess.java
================================================
package com.example.tflite_yolov5_test;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.text.TextUtils;
import com.example.tflite_yolov5_test.camera.env.BorderedText;
import java.util.List;
public class ImageProcess {
private static final int[] COLORS = {
Color.BLUE,
Color.RED,
Color.GREEN,
Color.YELLOW,
Color.CYAN,
Color.MAGENTA,
Color.WHITE,
Color.parseColor("#55FF55"),
Color.parseColor("#FFA500"),
Color.parseColor("#FF8888"),
Color.parseColor("#AAAAFF"),
Color.parseColor("#FFFFAA"),
Color.parseColor("#55AAAA"),
Color.parseColor("#AA33AA"),
Color.parseColor("#0D0068")
};
static public Bitmap drawBboxes(List<TfliteRunner.Recognition> bboxes, Bitmap bitmap, int inputSize) {
Bitmap mutableBitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true);
bitmap.recycle();
final Canvas canvas = new Canvas(mutableBitmap);
final Paint paint = new Paint();
BorderedText borderedText = new BorderedText(25);
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(3.0f);
for (TfliteRunner.Recognition bbox : bboxes) {
int color_idx = bbox.getClass_idx() % COLORS.length;
paint.setColor(COLORS[color_idx]);
RectF location = bbox.getLocation();
float left = location.left * bitmap.getWidth() / inputSize;
float right = location.right * bitmap.getWidth() / inputSize;
float top = location.top * bitmap.getHeight() / inputSize;
float bottom = location.bottom * bitmap.getHeight() / inputSize;
RectF drawBoxRect = new RectF(left, top, right, bottom);
canvas.drawRect(drawBoxRect, paint);
String labelString = String.format("%s %.2f", bbox.getTitle(), (100 * bbox.getConfidence()));
borderedText.drawText(
canvas, left - 10, top - 10, labelString, paint);
}
return mutableBitmap;
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/MainActivity.java
================================================
package com.example.tflite_yolov5_test;
import android.content.Context;
import android.graphics.RectF;
import android.os.Bundle;
import com.example.tflite_yolov5_test.camera.DetectorActivity;
import androidx.appcompat.app.AppCompatActivity;
import android.Manifest;
import android.app.AlertDialog;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Handler;
import android.os.HandlerThread;
import android.provider.DocumentsContract;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.RadioButton;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
import java.io.IOException;
import org.json.JSONArray;
//import org.tensorflow.lite.gpu.GpuDelegate;
import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.graphics.Bitmap;
import java.lang.Math;
public class MainActivity extends AppCompatActivity {
final int REQUEST_OPEN_FILE = 1;
final int REQUEST_OPEN_DIRECTORY = 9999;
//permission
private int inputSize = -1;
private File[] process_files = null;
private final int REQUEST_PERMISSION = 1000;
private final String[] PERMISSIONS = {
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
};
//background task
private boolean handler_stop_request;
private Handler handler;
private HandlerThread handlerThread;
private void checkPermission(){
if (!isGranted()){
requestPermissions(PERMISSIONS, REQUEST_PERMISSION);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
Toast.makeText(this, "onRequestPermissionResult", Toast.LENGTH_LONG).show();
if (requestCode == REQUEST_PERMISSION){
boolean result = isGranted();
Toast.makeText(getApplicationContext(), result ? "OK" : "NG", Toast.LENGTH_SHORT).show();
}
}
private boolean isGranted(){
for (int i = 0; i < PERMISSIONS.length; i++){
if (checkSelfPermission(PERMISSIONS[i]) != PackageManager.PERMISSION_GRANTED) {
if (shouldShowRequestPermissionRationale(PERMISSIONS[i])) {
Toast.makeText(this, "permission is required", Toast.LENGTH_LONG).show();
}
return false;
}
}
return true;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SeekBar conf_seekBar = (SeekBar)findViewById(R.id.conf_seekBar);
conf_seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener(){
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
TextView conf_textView = (TextView)findViewById(R.id.conf_TextView);
conf_textView.setText(String.format("Confidence Threshold: %.2f", (float)progress / 100));
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
});
conf_seekBar.setMax(100);
conf_seekBar.setProgress(25);//0.25
SeekBar iou_seekBar = (SeekBar)findViewById(R.id.iou_seekBar);
iou_seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener(){
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
TextView iou_textView = (TextView)findViewById(R.id.iou_TextView);
iou_textView.setText(String.format("IoU Threshold: %.2f", (float)progress / 100));
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
});
iou_seekBar.setMax(100);
iou_seekBar.setProgress(45);//0.45
}
public void OnOpenImageButtonClick(View view){
checkPermission();
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("image/*");
intent.addCategory(Intent.CATEGORY_OPENABLE);
startActivityForResult(Intent.createChooser(intent, "Open an image"), REQUEST_OPEN_FILE);
}
public void OnOpenDirButtonClick(View view){
checkPermission();
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE);
intent.addCategory(Intent.CATEGORY_DEFAULT);
startActivityForResult(Intent.createChooser(intent, "Open directory"), REQUEST_OPEN_DIRECTORY);
}
public void setResultImage(Bitmap bitmap){
ImageView imageview = (ImageView)findViewById(R.id.resultImageView);
imageview.setImageBitmap(bitmap);
}
ArrayList<HashMap<String, Object>> bboxesToMap(File file, List<TfliteRunner.Recognition> bboxes, int orig_h, int orig_w){
ArrayList<HashMap<String, Object>> resList = new ArrayList<HashMap<String, Object>>();
String basename = file.getName();
basename = basename.substring(0, basename.lastIndexOf('.'));
Object image_id;
try{
image_id = Integer.parseInt(basename);
} catch (Exception e){
image_id = basename;
}
for(TfliteRunner.Recognition bbox : bboxes){
//clamp and scale to original image size
RectF location = bbox.getLocation();
float x1 = Math.min(Math.max(0, location.left), this.inputSize) * orig_w / (float)this.inputSize;
float y1 = Math.min(Math.max(0, location.top), this.inputSize) * orig_h / (float)this.inputSize;
float x2 = Math.min(Math.max(0, location.right), this.inputSize) * orig_w / (float)this.inputSize;
float y2 = Math.min(Math.max(0, location.bottom), this.inputSize) * orig_h / (float)this.inputSize;
float x = x1;
float y = y1;
float w = x2 - x1;
float h = y2 - y1;
float conf = bbox.getConfidence();
int class_idx = TfliteRunner.get_coco91_from_coco80(bbox.getClass_idx());
HashMap<String, Object> mapbox = new HashMap<>();
mapbox.put("image_id", image_id);
mapbox.put("bbox", new float[]{x, y, w, h});
mapbox.put("score", conf);
mapbox.put("category_id", class_idx);
resList.add(mapbox);
}
return resList;
}
private boolean isBackgroundTaskRunning() {
return this.handlerThread != null && this.handlerThread.isAlive();
}
public void OnInferenceTaskCompleted() {
Button button = (Button) findViewById(R.id.runInferenceButton);
button.setText("Run Inference");
SeekBar conf_seekBar = (SeekBar) findViewById(R.id.conf_seekBar);
conf_seekBar.setEnabled(true);
SeekBar iou_seekBar = (SeekBar) findViewById(R.id.iou_seekBar);
iou_seekBar.setEnabled(true);
}
public void OnInferenceTaskStart(){
Button button = (Button)findViewById(R.id.runInferenceButton);
button.setText("Stop Inference");
SeekBar conf_seekBar = (SeekBar) findViewById(R.id.conf_seekBar);
conf_seekBar.setEnabled(false);
SeekBar iou_seekBar = (SeekBar) findViewById(R.id.iou_seekBar);
iou_seekBar.setEnabled(false);
}
public float getConfThreshFromGUI(){ return ((float)((SeekBar)findViewById(R.id.conf_seekBar)).getProgress()) / 100.0f;}
public float getIoUThreshFromGUI(){ return ((float)((SeekBar)findViewById(R.id.iou_seekBar)).getProgress()) / 100.0f;}
public void OnRunInferenceButtonClick(View view){
TfliteRunner runner;
TfliteRunMode.Mode runmode = getRunModeFromGUI();
this.inputSize = getInputSizeFromGUI();
//validation
if (this.process_files == null || this.process_files.length == 0){
showErrorDialog("Please select image or directory.");
return;
}
if (runmode == null) {
showErrorDialog("Please select valid configurations.");
return;
}
//open model
try {
Context context = getApplicationContext();
runner = new TfliteRunner(context, runmode, this.inputSize, getConfThreshFromGUI(), getIoUThreshFromGUI());
} catch (Exception e) {
showErrorDialog("Model load failed: " + e.getMessage());
return;
}
//check background task status
if(isBackgroundTaskRunning()){
//already inference is running, stop inference
this.handler_stop_request = true;
this.handlerThread.quitSafely();
try {
handlerThread.join();
handlerThread = null;
handler = null;
} catch (final InterruptedException e) {
addLog(e.getMessage() + "Exception!");
}
OnInferenceTaskCompleted();
return;
} else {
//start inference task
this.handler_stop_request = false;
OnInferenceTaskStart();
}
//run inference in background
this.handlerThread = new HandlerThread("inference");
this.handlerThread.start();
this.handler = new Handler(this.handlerThread.getLooper());
ProgressBar pbar = (ProgressBar)findViewById(R.id.progressBar);
File[] process_files = this.process_files;
pbar.setProgress(0);
ArrayList<HashMap<String, Object>> resList = new ArrayList<>();
runInBackground(
new Runnable() {
@Override
public void run() {
try {
for(int i = 0; i < process_files.length; i++){
if (handler_stop_request) break;
File file = process_files[i];
InputStream is = new FileInputStream(file);
Bitmap bitmap = BitmapFactory.decodeStream(is);
Bitmap resized = TfliteRunner.getResizedImage(bitmap, inputSize);
runner.setInput(resized);
List<TfliteRunner.Recognition> bboxes = runner.runInference();
Bitmap resBitmap = ImageProcess.drawBboxes(bboxes, bitmap, getInputSizeFromGUI());
ArrayList<HashMap<String, Object>> bboxmaps = bboxesToMap(file, bboxes, bitmap.getHeight(), bitmap.getWidth());
resList.addAll(bboxmaps);
int ii = i;
runOnUiThread(
new Runnable() {
@Override
public void run () {
pbar.setProgress(Math.min(100, (ii+1) * 100 / process_files.length));
setResultImage(resBitmap);
}
});
bitmap.recycle();
}
} catch (Exception e) {
runOnUiThread(
new Runnable() {
@Override
public void run() {
showErrorDialog("Inference failed : " + e.getMessage()) ;
}
}
);
}
//completed
runOnUiThread(
new Runnable() {
@Override
public void run() {
handler_stop_request = false;
OnInferenceTaskCompleted();
//output json if directory mode
if (process_files.length > 1) {
try {
String jsonpath = saveBboxesToJson(resList, process_files[0], "result.json");
showInfoDialog("result json is saved : " + jsonpath);
} catch (Exception e){
showErrorDialog("json output failed : " + e.getMessage());
}
}
addLog(runner.getLastElapsedTimeLog());
}
}
);
}
}
);
}
String saveBboxesToJson(ArrayList<HashMap<String, Object>> resList, File file, String output_filename)
throws org.json.JSONException, IOException{
// HashMap<String, Object>[] resArr = (HashMap<String, Object>[])resList.toArray();
JSONArray jarr = new JSONArray(resList);
String jstr = jarr.toString();
String filepath = file.getParent() + "/" + output_filename;
FileOutputStream fileOutputStream = new FileOutputStream(filepath, false);
fileOutputStream.write(jstr.getBytes());
return filepath;
}
private void showErrorDialog(String text){ showDialog("Error", text);}
private void showInfoDialog(String text){ showDialog("Info", text);}
private void showDialog(String title, String text){
new AlertDialog.Builder(this)
.setTitle(title)
.setMessage(text)
.setPositiveButton("OK" , null )
.create().show();
}
private void addLog(String logtxt){
TextView logtext = findViewById(R.id.logTextView);
logtext.setText(logtext.getText() + logtxt + "\n");
}
private void setOneLineLog(String text){
TextView onelinetextview = findViewById(R.id.oneLineLabel);
onelinetextview.setText(text);
}
public void OnClearLogButton(View view) {
TextView logtext = findViewById(R.id.logTextView);
logtext.setText("");
}
void setImageView(Bitmap bitmap){
ImageView imageview = (ImageView)findViewById(R.id.resultImageView);
imageview.setImageBitmap(bitmap);
}
public void OnOpenCameraButtonClick(View view){
if (isBackgroundTaskRunning()) {
showErrorDialog("Please stop inference task");
return;
}
Intent intent = new Intent(MainActivity.this, DetectorActivity.class);
startActivity(intent);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_OPEN_FILE) {
// one image file is selected
if (resultCode == RESULT_OK && data != null) {
Uri uri = data.getData();
if (uri != null) {
String fullpath = PathUtils.getPath(getApplicationContext(), uri);
this.process_files = new File[]{new File(fullpath)};
}
}
} else if (requestCode == REQUEST_OPEN_DIRECTORY) {
// image directory is selected
if (resultCode == RESULT_OK && data != null) {
Uri uri = data.getData();
if (uri != null) {
Uri docUri = DocumentsContract.buildDocumentUriUsingTree(uri,
DocumentsContract.getTreeDocumentId(uri));
String fullpath = PathUtils.getPath(getApplicationContext(), docUri);
File directory = new File(fullpath);
this.process_files = directory.listFiles(new ImageFilenameFIlter());
}
}
}
if (this.process_files != null && this.process_files.length > 0){
setOneLineLog(String.valueOf(this.process_files.length) + " images loaded.");
try{
InputStream is = new FileInputStream(this.process_files[0]);
Bitmap bitmap = BitmapFactory.decodeStream(is);
setResultImage(bitmap);
} catch(Exception ex){
setOneLineLog(ex.getMessage());
}
}
}
class ImageFilenameFIlter implements FilenameFilter {
public boolean accept(File dir, String name) {
if (name.toLowerCase().matches(".*\\.jpg$|.*\\.jpeg$|.*\\.png$|.*\\.bmp$")) {
return true;
}
return false;
}
}
protected synchronized void runInBackground(final Runnable r) {
if (this.handler != null) {
this.handler.post(r);
}
}
private TfliteRunMode.Mode getRunModeFromGUI(){
boolean model_float = ((RadioButton)findViewById(R.id.radioButton_modelFloat)).isChecked();
boolean model_int8 = ((RadioButton)findViewById(R.id.radioButton_modelInt)).isChecked();
boolean precision_fp32 = ((RadioButton)findViewById(R.id.radioButton_runFP32)).isChecked();
boolean precision_fp16 = ((RadioButton)findViewById(R.id.radioButton_runFP16)).isChecked();
boolean precision_int8 = ((RadioButton)findViewById(R.id.radioButton_runInt8)).isChecked();
boolean delegate_none = ((RadioButton)findViewById(R.id.radioButton_delegateNone)).isChecked();
boolean delegate_nnapi = ((RadioButton)findViewById(R.id.radioButton_delegateNNAPI)).isChecked();
boolean[] gui_selected = {model_float, model_int8, precision_fp32, precision_fp16, precision_int8, delegate_none, delegate_nnapi};
final Map<TfliteRunMode.Mode, boolean[]> candidates = new HashMap<TfliteRunMode.Mode, boolean[]>(){{
put(TfliteRunMode.Mode.NONE_FP32, new boolean[]{true, false, true, false, false, true, false});
put(TfliteRunMode.Mode.NONE_FP16, new boolean[]{true, false, false, true, false, true, false});
put(TfliteRunMode.Mode.NNAPI_GPU_FP32, new boolean[]{true, false, true, false, false, false, true});
put(TfliteRunMode.Mode.NNAPI_GPU_FP16, new boolean[]{true, false, false, true, false, false, true});
put(TfliteRunMode.Mode.NONE_INT8, new boolean[]{false, true, false, false, true, true, false});
put(TfliteRunMode.Mode.NNAPI_DSP_INT8, new boolean[]{false, true, false, false, true, false, true});
}};
for(Map.Entry<TfliteRunMode.Mode, boolean[]> entry : candidates.entrySet()){
if (Arrays.equals(gui_selected, entry.getValue())) return entry.getKey();
}
//not found
return null;
}
public int getInputSizeFromGUI(){
RadioButton input_640 = findViewById(R.id.radioButton_640);
if (input_640.isChecked()) return 640;
else return 320;
}
//Eliminate infeasible run configurations(model, precision)
public void onModelFloatClick(View view) {
RadioButton precision_int8 = findViewById(R.id.radioButton_runInt8);
if (precision_int8.isChecked()){
RadioButton precision_fp32 = findViewById(R.id.radioButton_runFP32);
precision_fp32.setChecked(true);
}
}
public void onModelIntClick(View view) {
RadioButton precision_fp32 = findViewById(R.id.radioButton_runFP32);
RadioButton precision_fp16 = findViewById(R.id.radioButton_runFP16);
if (precision_fp32.isChecked() || precision_fp16.isChecked()){
RadioButton precision_int8 = findViewById(R.id.radioButton_runInt8);
precision_int8.setChecked(true);
}
}
public void onPrecisionFPClick(View view){
RadioButton model_int = findViewById(R.id.radioButton_modelInt);
if (model_int.isChecked()) {
RadioButton model_fp = findViewById(R.id.radioButton_modelFloat);
model_fp.setChecked(true);
}
}
public void onPrecisionIntClick(View view){
RadioButton model_fp = findViewById(R.id.radioButton_modelFloat);
if (model_fp.isChecked()) {
RadioButton model_int = findViewById(R.id.radioButton_modelInt);
model_int.setChecked(true);
}
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/PathUtils.java
================================================
package com.example.tflite_yolov5_test;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import java.util.List;
public class PathUtils {
public static String getPath(final Context context, final Uri uri) {
// DocumentProvider
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && DocumentsContract.isDocumentUri(context, uri)) {
if (isExternalStorageDocument(uri)) {// ExternalStorageProvider
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
String storageDefinition;
if("primary".equalsIgnoreCase(type)){
return Environment.getExternalStorageDirectory() + "/" + split[1];
} else {
if(Environment.isExternalStorageRemovable()){
storageDefinition = "EXTERNAL_STORAGE";
} else{
storageDefinition = "SECONDARY_STORAGE";
}
return System.getenv(storageDefinition) + "/" + split[1];
}
} else if (isDownloadsDocument(uri)) {// DownloadsProvider
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
return getDataColumn(context, contentUri, null, null);
} else if (isMediaDocument(uri)) {// MediaProvider
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
final String selection = "_id=?";
final String[] selectionArgs = new String[]{
split[1]
};
return getDataColumn(context, contentUri, selection, selectionArgs);
}
} else if ("content".equalsIgnoreCase(uri.getScheme())) {// MediaStore (and general)
// Return the remote address
if (isGooglePhotosUri(uri))
return uri.getLastPathSegment();
return getDataColumn(context, uri, null, null);
} else if ("file".equalsIgnoreCase(uri.getScheme())) {// File
return uri.getPath();
}
return null;
}
public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = {
column
};
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
if (cursor != null && cursor.moveToFirst()) {
final int column_index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(column_index);
}
} finally {
if (cursor != null)
cursor.close();
}
return null;
}
public static boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
public static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
public static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
public static boolean isGooglePhotosUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/TfliteRunMode.java
================================================
package com.example.tflite_yolov5_test;
public class TfliteRunMode {
public enum Mode{
NONE_FP32,
NONE_FP16,
NONE_INT8,
NNAPI_GPU_FP32,
NNAPI_GPU_FP16,
NNAPI_DSP_INT8
}
static public boolean isQuantizedMode(Mode mode){
return mode == Mode.NONE_INT8 || mode == Mode.NNAPI_DSP_INT8;
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/TfliteRunner.java
================================================
package com.example.tflite_yolov5_test;
import android.content.Context;
import android.content.res.AssetFileDescriptor;
import android.content.res.AssetManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.RectF;
import android.widget.ImageView;
import org.tensorflow.lite.Interpreter;
import org.tensorflow.lite.nnapi.NnApiDelegate;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.example.tflite_yolov5_test.TfliteRunMode.*;
public class TfliteRunner {
final int numBytesPerChannel_float = 4;
final int numBytesPerChannel_int = 1;
static {
System.loadLibrary("native-lib");
}
public native float[][] postprocess(float[][][][] out1, float[][][][] out2, float[][][][] out3, int inputSize, float conf_thresh, float iou_thresh);
private Interpreter tfliteInterpreter;
Mode runmode;
int inputSize;
class InferenceRawResult{
public float[][][][] out1;
public float[][][][] out2;
public float[][][][] out3;
public InferenceRawResult(int inputSize){
this.out1 = new float[1][inputSize/8][inputSize/8][3*85];
this.out2 = new float[1][inputSize/16][inputSize/16][3*85];
this.out3 = new float[1][inputSize/32][inputSize/32][3*85];
}
}
Object[] inputArray;
Map<Integer, Object> outputMap;
InferenceRawResult rawres;
float conf_thresh;
float iou_thresh;
public TfliteRunner(Context context, Mode runmode, int inputSize, float conf_thresh, float iou_thresh) throws Exception{
this.runmode = runmode;
this.rawres = new InferenceRawResult(inputSize);
this.inputSize = inputSize;
this.conf_thresh = conf_thresh;
this.iou_thresh = iou_thresh;
loadModel(context, runmode, inputSize, 4);
}
private static MappedByteBuffer loadModelFile(AssetManager assets, String modelFilename)
throws IOException {
AssetFileDescriptor fileDescriptor = assets.openFd(modelFilename);
FileInputStream inputStream = new FileInputStream(fileDescriptor.getFileDescriptor());
FileChannel fileChannel = inputStream.getChannel();
long startOffset = fileDescriptor.getStartOffset();
long declaredLength = fileDescriptor.getDeclaredLength();
return fileChannel.map(FileChannel.MapMode.READ_ONLY, startOffset, declaredLength);
}
public void loadModel(Context context, Mode runmode, int inputSize, int num_threads) throws Exception{
Interpreter.Options options = new Interpreter.Options();
NnApiDelegate.Options nnapi_options = new NnApiDelegate.Options();
options.setNumThreads(num_threads);
nnapi_options.setExecutionPreference(1);//sustain-spped
switch (runmode){
case NONE_FP32:
options.setUseXNNPACK(true);
break;
case NONE_FP16:
//TODO:deprecated?
options.setAllowFp16PrecisionForFp32(true);
break;
case NNAPI_GPU_FP32:
nnapi_options.setAcceleratorName("qti-gpu");
nnapi_options.setAllowFp16(false);
options.addDelegate(new NnApiDelegate(nnapi_options));
break;
case NNAPI_GPU_FP16:
nnapi_options.setAcceleratorName("qti-gpu");
nnapi_options.setAllowFp16(true);
options.addDelegate(new NnApiDelegate(nnapi_options));
break;
case NONE_INT8:
options.setUseXNNPACK(true);
break;
case NNAPI_DSP_INT8:
nnapi_options.setAcceleratorName("qti-dsp");
options.addDelegate(new NnApiDelegate(nnapi_options));
break;
default:
throw new RuntimeException("Unknown runmode!");
}
boolean quantized_mode = TfliteRunMode.isQuantizedMode(runmode);
String precision_str = quantized_mode ? "int8" : "fp32";
String modelname = "yolov5s_" + precision_str + "_" + String.valueOf(inputSize) + ".tflite";
MappedByteBuffer tflite_model_buf = TfliteRunner.loadModelFile(context.getAssets(), modelname);
this.tfliteInterpreter = new Interpreter(tflite_model_buf, options);
}
static public Bitmap getResizedImage(Bitmap bitmap, int inputSize) {
Bitmap resized = Bitmap.createScaledBitmap(bitmap, inputSize, inputSize, true);
return resized;
}
public void setInput(Bitmap resizedbitmap){
boolean quantized_mode = TfliteRunMode.isQuantizedMode(this.runmode);
int numBytesPerChannel = quantized_mode ? numBytesPerChannel_int : numBytesPerChannel_float;
ByteBuffer imgData = ByteBuffer.allocateDirect(1 * inputSize * inputSize * 3 * numBytesPerChannel);
int[] intValues = new int[inputSize * inputSize];
resizedbitmap.getPixels(intValues, 0, resizedbitmap.getWidth(), 0, 0, resizedbitmap.getWidth(), resizedbitmap.getHeight());
imgData.order(ByteOrder.nativeOrder());
imgData.rewind();
for (int i = 0; i < inputSize; ++i) {
for (int j = 0; j < inputSize; ++j) {
int pixelValue = intValues[i * inputSize + j];
if (quantized_mode) {
// Quantized model
imgData.put((byte) ((pixelValue >> 16) & 0xFF));
imgData.put((byte) ((pixelValue >> 8) & 0xFF));
imgData.put((byte) (pixelValue & 0xFF));
} else { // Float model
float r = (((pixelValue >> 16) & 0xFF)) / 255.0f;
float g = (((pixelValue >> 8) & 0xFF)) / 255.0f;
float b = ((pixelValue & 0xFF)) / 255.0f;
imgData.putFloat(r);
imgData.putFloat(g);
imgData.putFloat(b);
}
}
}
this.inputArray = new Object[]{imgData};
this.outputMap = new HashMap<>();
outputMap.put(0, this.rawres.out1);
outputMap.put(1, this.rawres.out2);
outputMap.put(2, this.rawres.out3);
}
private int inference_elapsed;
private int postprocess_elapsed;
public String getLastElapsedTimeLog() {
return String.format("inference: %dms postprocess: %dms", this.inference_elapsed, this.postprocess_elapsed);
}
public List<Recognition> runInference(){
List<Recognition> bboxes = new ArrayList<>();
long start = System.currentTimeMillis();
this.tfliteInterpreter.runForMultipleInputsOutputs(inputArray, outputMap);
long end = System.currentTimeMillis();
this.inference_elapsed = (int)(end - start);
//float[bbox_num][6]
// (x1, y1, x2, y2, conf, class_idx)
float[][] bbox_arrs = postprocess(this.rawres.out1,
this.rawres.out2,
this.rawres.out3,
this.inputSize,
this.conf_thresh,
this.iou_thresh);
long end2 = System.currentTimeMillis();
this.postprocess_elapsed = (int)(end2 - end);
for(float[] bbox_arr: bbox_arrs){
bboxes.add(new Recognition(bbox_arr));
}
return bboxes;
}
static int[] coco80_to_91class_map = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 31, 32, 33, 34,
35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
64, 65, 67, 70, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 84, 85, 86, 87, 88, 89, 90};
static public int get_coco91_from_coco80(int idx){
//assume idx < 80
return coco80_to_91class_map[idx];
}
public void setConfThresh(float thresh){ this.conf_thresh = thresh;}
public void setIoUThresh(float thresh) {this.iou_thresh = thresh;}
//port from TfLite Object Detection example
/** An immutable result returned by a Detector describing what was recognized. */
public class Recognition {
private final String[] coco_class_names = new String[]{"person", "bicycle", "car", "motorbike", "aeroplane", "bus", "train", "truck", "boat", "traffic light", "fire hydrant", "stop sign", "parking meter", "bench", "bird", "cat", "dog", "horse", "sheep", "cow", "elephant", "bear", "zebra", "giraffe", "backpack", "umbrella", "handbag", "tie", "suitcase", "frisbee", "skis", "snowboard", "sports ball", "kite", "baseball bat", "baseball glove", "skateboard", "surfboard", "tennis racket", "bottle", "wine glass", "cup", "fork", "knife", "spoon", "bowl", "banana", "apple", "sandwich", "orange", "broccoli", "carrot", "hot dog", "pizza", "donut", "cake", "chair", "sofa", "pottedplant", "bed", "diningtable", "toilet", "tvmonitor", "laptop", "mouse", "remote", "keyboard", "cell phone", "microwave", "oven", "toaster", "sink", "refrigerator", "book", "clock", "vase", "scissors", "teddy bear", "hair drier", "toothbrush"};
private final Integer class_idx;
/**
* A unique identifier for what has been recognized. Specific to the class, not the instance of
* the object.
*/
//private final String id;
/** Display name for the recognition. */
private final String title;
/**
* A sortable score for how good the recognition is relative to others. Higher should be better.
*/
private final Float confidence;
/** Optional location within the source image for the location of the recognized object. */
private RectF location;
public Recognition(
float[] bbox_array) {
float x1 = bbox_array[0];
float y1 = bbox_array[1];
float x2 = bbox_array[2];
float y2 = bbox_array[3];
//this.id = (int)bbox_array[5];
int class_id = (int)bbox_array[5];
this.class_idx = class_id;
this.title = coco_class_names[class_id];
this.confidence = bbox_array[4];
this.location = new RectF(x1, y1, x2, y2);
}
public Integer getClass_idx(){
return class_idx;
}
/*public String getId() {
return id;
}*/
public String getTitle() {
return title;
}
public Float getConfidence() {
return confidence;
}
public RectF getLocation() {
return new RectF(location);
}
public void setLocation(RectF location) {
this.location = location;
}
@Override
public String toString() {
String resultString = "";
/*if (id != null) {
resultString += "[" + id + "] ";
}*/
if (title != null) {
resultString += title + " ";
}
if (confidence != null) {
resultString += String.format("(%.1f%%) ", confidence * 100.0f);
}
if (location != null) {
resultString += location + " ";
}
return resultString.trim();
}
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/CameraActivity.java
================================================
package com.example.tflite_yolov5_test.camera;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.SwitchCompat;
import android.Manifest;
import android.app.Fragment;
import android.content.Context;
import android.content.pm.PackageManager;
import android.hardware.Camera;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CameraManager;
import android.hardware.camera2.params.StreamConfigurationMap;
import android.media.Image;
import android.media.ImageReader;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Trace;
import android.util.Size;
import android.view.Surface;
import android.view.View;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
import com.example.tflite_yolov5_test.R;
import com.google.android.material.bottomsheet.BottomSheetBehavior;
import com.example.tflite_yolov5_test.camera.env.ImageUtils;
import java.nio.ByteBuffer;
public abstract class CameraActivity extends AppCompatActivity
implements ImageReader.OnImageAvailableListener,
Camera.PreviewCallback,
CompoundButton.OnCheckedChangeListener,
View.OnClickListener {
private static final int PERMISSIONS_REQUEST = 1;
private static final String PERMISSION_CAMERA = Manifest.permission.CAMERA;
protected int previewWidth = 0;
protected int previewHeight = 0;
private boolean debug = false;
private Handler handler;
private HandlerThread handlerThread;
private boolean useCamera2API;
private boolean isProcessingFrame = false;
private byte[][] yuvBytes = new byte[3][];
private int[] rgbBytes = null;
private int yRowStride;
private Runnable postInferenceCallback;
private Runnable imageConverter;
private LinearLayout bottomSheetLayout;
private LinearLayout gestureLayout;
private BottomSheetBehavior<LinearLayout> sheetBehavior;
protected TextView frameValueTextView, cropValueTextView, inferenceTimeTextView;
protected ImageView bottomSheetArrowImageView;
private ImageView plusImageView, minusImageView;
private SwitchCompat apiSwitchCompat;
private TextView threadsTextView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_camera);
if (hasPermission()) {
setFragment();
} else {
requestPermission();
}
}
private String chooseCamera() {
final CameraManager manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);
try {
for (final String cameraId : manager.getCameraIdList()) {
final CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
// We don't use a front facing camera in this sample.
final Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING);
if (facing != null && facing == CameraCharacteristics.LENS_FACING_FRONT) {
continue;
}
final StreamConfigurationMap map =
characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
if (map == null) {
continue;
}
// Fallback to camera1 API for internal cameras that don't have full support.
// This should help with legacy situations where using the camera2 API causes
// distorted or otherwise broken previews.
useCamera2API =
(facing == CameraCharacteristics.LENS_FACING_EXTERNAL)
|| isHardwareLevelSupported(
characteristics, CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_FULL);
return cameraId;
}
} catch (CameraAccessException e) {
}
return null;
}
protected void fillBytes(final Image.Plane[] planes, final byte[][] yuvBytes) {
// Because of the variable row stride it's not possible to know in
// advance the actual necessary dimensions of the yuv planes.
for (int i = 0; i < planes.length; ++i) {
final ByteBuffer buffer = planes[i].getBuffer();
if (yuvBytes[i] == null) {
yuvBytes[i] = new byte[buffer.capacity()];
}
buffer.get(yuvBytes[i]);
}
}
protected int getScreenOrientation() {
switch (getWindowManager().getDefaultDisplay().getRotation()) {
case Surface.ROTATION_270:
return 270;
case Surface.ROTATION_180:
return 180;
case Surface.ROTATION_90:
return 90;
default:
return 0;
}
}
/** Callback for android.hardware.Camera API */
@Override
public void onPreviewFrame(final byte[] bytes, final Camera camera) {
if (isProcessingFrame) {
return;
}
try {
// Initialize the storage bitmaps once when the resolution is known.
if (rgbBytes == null) {
Camera.Size previewSize = camera.getParameters().getPreviewSize();
previewHeight = previewSize.height;
previewWidth = previewSize.width;
rgbBytes = new int[previewWidth * previewHeight];
onPreviewSizeChosen(new Size(previewSize.width, previewSize.height), 90);
}
} catch (final Exception e) {
return;
}
}
/** Callback for Camera2 API */
@Override
public void onImageAvailable(final ImageReader reader) {
// We need wait until we have some size from onPreviewSizeChosen
if (previewWidth == 0 || previewHeight == 0) {
return;
}
if (rgbBytes == null) {
rgbBytes = new int[previewWidth * previewHeight];
}
try {
final Image image = reader.acquireLatestImage();
if (image == null) {
return;
}
if (isProcessingFrame) {
image.close();
return;
}
isProcessingFrame = true;
Trace.beginSection("imageAvailable");
final Image.Plane[] planes = image.getPlanes();
fillBytes(planes, yuvBytes);
yRowStride = planes[0].getRowStride();
final int uvRowStride = planes[1].getRowStride();
final int uvPixelStride = planes[1].getPixelStride();
imageConverter =
new Runnable() {
@Override
public void run() {
ImageUtils.convertYUV420ToARGB8888(
yuvBytes[0],
yuvBytes[1],
yuvBytes[2],
previewWidth,
previewHeight,
yRowStride,
uvRowStride,
uvPixelStride,
rgbBytes);
}
};
postInferenceCallback =
new Runnable() {
@Override
public void run() {
image.close();
isProcessingFrame = false;
}
};
processImage();
} catch (final Exception e) {
Trace.endSection();
return;
}
Trace.endSection();
}
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
}
@Override
public void onClick(View v) {
}
@Override
public synchronized void onResume() {
super.onResume();
handlerThread = new HandlerThread("inference");
handlerThread.start();
handler = new Handler(handlerThread.getLooper());
}
@Override
public synchronized void onPause() {
handlerThread.quitSafely();
try {
handlerThread.join();
handlerThread = null;
handler = null;
} catch (final InterruptedException e) {
}
super.onPause();
}
protected synchronized void runInBackground(final Runnable r) {
if (handler != null) {
handler.post(r);
}
}
protected int[] getRgbBytes() {
imageConverter.run();
return rgbBytes;
}
protected void readyForNextImage() {
if (postInferenceCallback != null) {
postInferenceCallback.run();
}
}
private boolean isHardwareLevelSupported(
CameraCharacteristics characteristics, int requiredLevel) {
int deviceLevel = characteristics.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);
if (deviceLevel == CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY) {
return requiredLevel == deviceLevel;
}
// deviceLevel is not LEGACY, can use numerical sort
return requiredLevel <= deviceLevel;
}
protected void setFragment() {
String cameraId = chooseCamera();
Fragment fragment;
if (useCamera2API) {
CameraConnectionFragment camera2Fragment =
CameraConnectionFragment.newInstance(
new CameraConnectionFragment.ConnectionCallback() {
@Override
public void onPreviewSizeChosen(final Size size, final int rotation) {
previewHeight = size.getHeight();
previewWidth = size.getWidth();
CameraActivity.this.onPreviewSizeChosen(size, rotation);
}
},
this,
getLayoutId(),
getDesiredPreviewFrameSize());
camera2Fragment.setCamera(cameraId);
fragment = camera2Fragment;
} else {
fragment =
new LegacyCameraConnectionFragment(this, getLayoutId(), getDesiredPreviewFrameSize());
}
getFragmentManager().beginTransaction().replace(R.id.container, fragment).commit();
int a = 0;
a = a + 1;
}
protected abstract void processImage();
protected abstract void onPreviewSizeChosen(final Size size, final int rotation);
protected abstract int getLayoutId();
protected abstract Size getDesiredPreviewFrameSize();
protected abstract void setNumThreads(int numThreads);
protected abstract void setUseNNAPI(boolean isChecked);
private static boolean allPermissionsGranted(final int[] grantResults) {
for (int result : grantResults) {
if (result != PackageManager.PERMISSION_GRANTED) {
return false;
}
}
return true;
}
private boolean hasPermission() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
return checkSelfPermission(PERMISSION_CAMERA) == PackageManager.PERMISSION_GRANTED;
} else {
return true;
}
}
private void requestPermission() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (shouldShowRequestPermissionRationale(PERMISSION_CAMERA)) {
Toast.makeText(
CameraActivity.this,
"Camera permission is required for this demo",
Toast.LENGTH_LONG)
.show();
}
requestPermissions(new String[] {PERMISSION_CAMERA}, PERMISSIONS_REQUEST);
}
}
@Override
public void onRequestPermissionsResult(
final int requestCode, final String[] permissions, final int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == PERMISSIONS_REQUEST) {
if (allPermissionsGranted(grantResults)) {
setFragment();
} else {
requestPermission();
}
}
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/CameraConnectionFragment.java
================================================
package com.example.tflite_yolov5_test.camera;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.app.Fragment;
import android.content.Context;
import android.content.DialogInterface;
import android.content.res.Configuration;
import android.graphics.ImageFormat;
import android.graphics.Matrix;
import android.graphics.RectF;
import android.graphics.SurfaceTexture;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCaptureSession;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CameraDevice;
import android.hardware.camera2.CameraManager;
import android.hardware.camera2.CaptureRequest;
import android.hardware.camera2.CaptureResult;
import android.hardware.camera2.TotalCaptureResult;
import android.hardware.camera2.params.StreamConfigurationMap;
import android.media.ImageReader;
import android.os.Bundle;
import android.os.Handler;
import android.os.HandlerThread;
import android.util.Size;
import android.util.SparseIntArray;
import android.view.LayoutInflater;
import android.view.Surface;
import android.view.TextureView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import com.example.tflite_yolov5_test.R;
import com.example.tflite_yolov5_test.customview.AutoFitTextureView;
@SuppressLint("ValidFragment")
public class CameraConnectionFragment extends Fragment {
/**
* The camera preview size will be chosen to be the smallest frame by pixel size capable of
* containing a DESIRED_SIZE x DESIRED_SIZE square.
*/
private static final int MINIMUM_PREVIEW_SIZE = 320;
/** Conversion from screen rotation to JPEG orientation. */
private static final SparseIntArray ORIENTATIONS = new SparseIntArray();
private static final String FRAGMENT_DIALOG = "dialog";
static {
ORIENTATIONS.append(Surface.ROTATION_0, 90);
ORIENTATIONS.append(Surface.ROTATION_90, 0);
ORIENTATIONS.append(Surface.ROTATION_180, 270);
ORIENTATIONS.append(Surface.ROTATION_270, 180);
}
/** A {@link Semaphore} to prevent the app from exiting before closing the camera. */
private final Semaphore cameraOpenCloseLock = new Semaphore(1);
/** A {@link ImageReader.OnImageAvailableListener} to receive frames as they are available. */
private final ImageReader.OnImageAvailableListener imageListener;
/** The input size in pixels desired by TensorFlow (width and height of a square bitmap). */
private final Size inputSize;
/** The layout identifier to inflate for this Fragment. */
private final int layout;
private final ConnectionCallback cameraConnectionCallback;
private final CameraCaptureSession.CaptureCallback captureCallback =
new CameraCaptureSession.CaptureCallback() {
@Override
public void onCaptureProgressed(
final CameraCaptureSession session,
final CaptureRequest request,
final CaptureResult partialResult) {}
@Override
public void onCaptureCompleted(
final CameraCaptureSession session,
final CaptureRequest request,
final TotalCaptureResult result) {}
};
/** ID of the current {@link CameraDevice}. */
private String cameraId;
/** An {@link AutoFitTextureView} for camera preview. */
private AutoFitTextureView textureView;
/** A {@link CameraCaptureSession } for camera preview. */
private CameraCaptureSession captureSession;
/** A reference to the opened {@link CameraDevice}. */
private CameraDevice cameraDevice;
/** The rotation in degrees of the camera sensor from the display. */
private Integer sensorOrientation;
/** The {@link Size} of camera preview. */
private Size previewSize;
/** An additional thread for running tasks that shouldn't block the UI. */
private HandlerThread backgroundThread;
/** A {@link Handler} for running tasks in the background. */
private Handler backgroundHandler;
/** An {@link ImageReader} that handles preview frame capture. */
private ImageReader previewReader;
/** {@link CaptureRequest.Builder} for the camera preview */
private CaptureRequest.Builder previewRequestBuilder;
/** {@link CaptureRequest} generated by {@link #previewRequestBuilder} */
private CaptureRequest previewRequest;
/** {@link CameraDevice.StateCallback} is called when {@link CameraDevice} changes its state. */
private final CameraDevice.StateCallback stateCallback =
new CameraDevice.StateCallback() {
@Override
public void onOpened(final CameraDevice cd) {
// This method is called when the camera is opened. We start camera preview here.
cameraOpenCloseLock.release();
cameraDevice = cd;
createCameraPreviewSession();
}
@Override
public void onDisconnected(final CameraDevice cd) {
cameraOpenCloseLock.release();
cd.close();
cameraDevice = null;
}
@Override
public void onError(final CameraDevice cd, final int error) {
cameraOpenCloseLock.release();
cd.close();
cameraDevice = null;
final Activity activity = getActivity();
if (null != activity) {
activity.finish();
}
}
};
/**
* {@link TextureView.SurfaceTextureListener} handles several lifecycle events on a {@link
* TextureView}.
*/
private final TextureView.SurfaceTextureListener surfaceTextureListener =
new TextureView.SurfaceTextureListener() {
@Override
public void onSurfaceTextureAvailable(
final SurfaceTexture texture, final int width, final int height) {
openCamera(width, height);
}
@Override
public void onSurfaceTextureSizeChanged(
final SurfaceTexture texture, final int width, final int height) {
configureTransform(width, height);
}
@Override
public boolean onSurfaceTextureDestroyed(final SurfaceTexture texture) {
return true;
}
@Override
public void onSurfaceTextureUpdated(final SurfaceTexture texture) {}
};
private CameraConnectionFragment(
final ConnectionCallback connectionCallback,
final ImageReader.OnImageAvailableListener imageListener,
final int layout,
final Size inputSize) {
this.cameraConnectionCallback = connectionCallback;
this.imageListener = imageListener;
this.layout = layout;
this.inputSize = inputSize;
}
/**
* Given {@code choices} of {@code Size}s supported by a camera, chooses the smallest one whose
* width and height are at least as large as the minimum of both, or an exact match if possible.
*
* @param choices The list of sizes that the camera supports for the intended output class
* @param width The minimum desired width
* @param height The minimum desired height
* @return The optimal {@code Size}, or an arbitrary one if none were big enough
*/
protected static Size chooseOptimalSize(final Size[] choices, final int width, final int height) {
final int minSize = Math.max(Math.min(width, height), MINIMUM_PREVIEW_SIZE);
final Size desiredSize = new Size(width, height);
// Collect the supported resolutions that are at least as big as the preview Surface
boolean exactSizeFound = false;
final List<Size> bigEnough = new ArrayList<Size>();
final List<Size> tooSmall = new ArrayList<Size>();
for (final Size option : choices) {
if (option.equals(desiredSize)) {
// Set the size but don't return yet so that remaining sizes will still be logged.
exactSizeFound = true;
}
if (option.getHeight() >= minSize && option.getWidth() >= minSize) {
bigEnough.add(option);
} else {
tooSmall.add(option);
}
}
if (exactSizeFound) {
return desiredSize;
}
// Pick the smallest of those, assuming we found any
if (bigEnough.size() > 0) {
final Size chosenSize = Collections.min(bigEnough, new CompareSizesByArea());
return chosenSize;
} else {
return choices[0];
}
}
public static CameraConnectionFragment newInstance(
final ConnectionCallback callback,
final ImageReader.OnImageAvailableListener imageListener,
final int layout,
final Size inputSize) {
return new CameraConnectionFragment(callback, imageListener, layout, inputSize);
}
/**
* Shows a {@link Toast} on the UI thread.
*
* @param text The message to show
*/
private void showToast(final String text) {
final Activity activity = getActivity();
if (activity != null) {
activity.runOnUiThread(
new Runnable() {
@Override
public void run() {
Toast.makeText(activity, text, Toast.LENGTH_SHORT).show();
}
});
}
}
@Override
public View onCreateView(
final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) {
return inflater.inflate(layout, container, false);
}
@Override
public void onViewCreated(final View view, final Bundle savedInstanceState) {
textureView = (AutoFitTextureView) view.findViewById(R.id.texture);
}
@Override
public void onActivityCreated(final Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
@Override
public void onResume() {
super.onResume();
startBackgroundThread();
// When the screen is turned off and turned back on, the SurfaceTexture is already
// available, and "onSurfaceTextureAvailable" will not be called. In that case, we can open
// a camera and start preview from here (otherwise, we wait until the surface is ready in
// the SurfaceTextureListener).
if (textureView.isAvailable()) {
openCamera(textureView.getWidth(), textureView.getHeight());
} else {
textureView.setSurfaceTextureListener(surfaceTextureListener);
}
}
@Override
public void onPause() {
closeCamera();
stopBackgroundThread();
super.onPause();
}
public void setCamera(String cameraId) {
this.cameraId = cameraId;
}
/** Sets up member variables related to camera. */
private void setUpCameraOutputs() {
final Activity activity = getActivity();
final CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
try {
final CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
final StreamConfigurationMap map =
characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
sensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
// Danger, W.R.! Attempting to use too large a preview size could exceed the camera
// bus' bandwidth limitation, resulting in gorgeous previews but the storage of
// garbage capture data.
previewSize =
chooseOptimalSize(
map.getOutputSizes(SurfaceTexture.class),
inputSize.getWidth(),
inputSize.getHeight());
// We fit the aspect ratio of TextureView to the size of preview we picked.
final int orientation = getResources().getConfiguration().orientation;
if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
textureView.setAspectRatio(previewSize.getWidth(), previewSize.getHeight());
} else {
textureView.setAspectRatio(previewSize.getHeight(), previewSize.getWidth());
}
} catch (final CameraAccessException e) {
} catch (final NullPointerException e) {
// Currently an NPE is thrown when the Camera2API is used but not supported on the
// device this code runs.
// ErrorDialog.newInstance(getString(R.string.tfe_od_camera_error))
// .show(getChildFragmentManager(), FRAGMENT_DIALOG);
// throw new IllegalStateException(getString(R.string.tfe_od_camera_error));
}
cameraConnectionCallback.onPreviewSizeChosen(previewSize, sensorOrientation);
}
/** Opens the camera specified by {@link CameraConnectionFragment#cameraId}. */
@SuppressLint("MissingPermission")
private void openCamera(final int width, final int height) {
setUpCameraOutputs();
configureTransform(width, height);
final Activity activity = getActivity();
final CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
try {
if (!cameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) {
throw new RuntimeException("Time out waiting to lock camera opening.");
}
manager.openCamera(cameraId, stateCallback, backgroundHandler);
} catch (final CameraAccessException e) {
} catch (final InterruptedException e) {
throw new RuntimeException("Interrupted while trying to lock camera opening.", e);
}
}
/** Closes the current {@link CameraDevice}. */
private void closeCamera() {
try {
cameraOpenCloseLock.acquire();
if (null != captureSession) {
captureSession.close();
captureSession = null;
}
if (null != cameraDevice) {
cameraDevice.close();
cameraDevice = null;
}
if (null != previewReader) {
previewReader.close();
previewReader = null;
}
} catch (final InterruptedException e) {
throw new RuntimeException("Interrupted while trying to lock camera closing.", e);
} finally {
cameraOpenCloseLock.release();
}
}
/** Starts a background thread and its {@link Handler}. */
private void startBackgroundThread() {
backgroundThread = new HandlerThread("ImageListener");
backgroundThread.start();
backgroundHandler = new Handler(backgroundThread.getLooper());
}
/** Stops the background thread and its {@link Handler}. */
private void stopBackgroundThread() {
backgroundThread.quitSafely();
try {
backgroundThread.join();
backgroundThread = null;
backgroundHandler = null;
} catch (final InterruptedException e) {
}
}
/** Creates a new {@link CameraCaptureSession} for camera preview. */
private void createCameraPreviewSession() {
try {
final SurfaceTexture texture = textureView.getSurfaceTexture();
assert texture != null;
// We configure the size of default buffer to be the size of camera preview we want.
texture.setDefaultBufferSize(previewSize.getWidth(), previewSize.getHeight());
// This is the output Surface we need to start preview.
final Surface surface = new Surface(texture);
// We set up a CaptureRequest.Builder with the output Surface.
previewRequestBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
previewRequestBuilder.addTarget(surface);
// Create the reader for the preview frames.
previewReader =
ImageReader.newInstance(
previewSize.getWidth(), previewSize.getHeight(), ImageFormat.YUV_420_888, 2);
previewReader.setOnImageAvailableListener(imageListener, backgroundHandler);
previewRequestBuilder.addTarget(previewReader.getSurface());
// Here, we create a CameraCaptureSession for camera preview.
cameraDevice.createCaptureSession(
Arrays.asList(surface, previewReader.getSurface()),
new CameraCaptureSession.StateCallback() {
@Override
public void onConfigured(final CameraCaptureSession cameraCaptureSession) {
// The camera is already closed
if (null == cameraDevice) {
return;
}
// When the session is ready, we start displaying the preview.
captureSession = cameraCaptureSession;
try {
// Auto focus should be continuous for camera preview.
previewRequestBuilder.set(
CaptureRequest.CONTROL_AF_MODE,
CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
// Flash is automatically enabled when necessary.
previewRequestBuilder.set(
CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);
// Finally, we start displaying the camera preview.
previewRequest = previewRequestBuilder.build();
captureSession.setRepeatingRequest(
previewRequest, captureCallback, backgroundHandler);
} catch (final CameraAccessException e) {
}
}
@Override
public void onConfigureFailed(final CameraCaptureSession cameraCaptureSession) {
showToast("Failed");
}
},
null);
} catch (final CameraAccessException e) {
}
}
/**
* Configures the necessary {@link Matrix} transformation to `mTextureView`. This method should be
* called after the camera preview size is determined in setUpCameraOutputs and also the size of
* `mTextureView` is fixed.
*
* @param viewWidth The width of `mTextureView`
* @param viewHeight The height of `mTextureView`
*/
private void configureTransform(final int viewWidth, final int viewHeight) {
final Activity activity = getActivity();
if (null == textureView || null == previewSize || null == activity) {
return;
}
final int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
final Matrix matrix = new Matrix();
final RectF viewRect = new RectF(0, 0, viewWidth, viewHeight);
final RectF bufferRect = new RectF(0, 0, previewSize.getHeight(), previewSize.getWidth());
final float centerX = viewRect.centerX();
final float centerY = viewRect.centerY();
if (Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation) {
bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());
matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);
final float scale =
Math.max(
(float) viewHeight / previewSize.getHeight(),
(float) viewWidth / previewSize.getWidth());
matrix.postScale(scale, scale, centerX, centerY);
matrix.postRotate(90 * (rotation - 2), centerX, centerY);
} else if (Surface.ROTATION_180 == rotation) {
matrix.postRotate(180, centerX, centerY);
}
textureView.setTransform(matrix);
}
/**
* Callback for Activities to use to initialize their data once the selected preview size is
* known.
*/
public interface ConnectionCallback {
void onPreviewSizeChosen(Size size, int cameraRotation);
}
/** Compares two {@code Size}s based on their areas. */
static class CompareSizesByArea implements Comparator<Size> {
@Override
public int compare(final Size lhs, final Size rhs) {
// We cast here to ensure the multiplications won't overflow
return Long.signum(
(long) lhs.getWidth() * lhs.getHeight() - (long) rhs.getWidth() * rhs.getHeight());
}
}
/** Shows an error message dialog. */
public static class ErrorDialog extends DialogFragment {
private static final String ARG_MESSAGE = "message";
public static ErrorDialog newInstance(final String message) {
final ErrorDialog dialog = new ErrorDialog();
final Bundle args = new Bundle();
args.putString(ARG_MESSAGE, message);
dialog.setArguments(args);
return dialog;
}
@Override
public Dialog onCreateDialog(final Bundle savedInstanceState) {
final Activity activity = getActivity();
return new AlertDialog.Builder(activity)
.setMessage(getArguments().getString(ARG_MESSAGE))
.setPositiveButton(
android.R.string.ok,
new DialogInterface.OnClickListener() {
@Override
public void onClick(final DialogInterface dialogInterface, final int i) {
activity.finish();
}
})
.create();
}
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/DetectorActivity.java
================================================
package com.example.tflite_yolov5_test.camera;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.RectF;
import android.graphics.Typeface;
import android.media.ImageReader;
import android.os.Bundle;
import android.os.SystemClock;
import android.util.Log;
import android.util.Size;
import android.util.TypedValue;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
import com.example.tflite_yolov5_test.R;
import com.example.tflite_yolov5_test.camera.env.BorderedText;
import com.example.tflite_yolov5_test.camera.env.ImageUtils;
import com.example.tflite_yolov5_test.camera.tracker.MultiBoxTracker;
import com.example.tflite_yolov5_test.customview.OverlayView;
import com.example.tflite_yolov5_test.TfliteRunner;
import com.example.tflite_yolov5_test.TfliteRunMode;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
public class DetectorActivity extends CameraActivity implements ImageReader.OnImageAvailableListener {
private static final int TF_OD_API_INPUT_SIZE = 320;
private static final boolean TF_OD_API_IS_QUANTIZED = true;
private static final String TF_OD_API_MODEL_FILE = "detect.tflite";
private static final String TF_OD_API_LABELS_FILE = "labelmap.txt";
private static final TfliteRunMode.Mode MODE = TfliteRunMode.Mode.NONE_INT8;
// Minimum detection confidence to track a detection.
private static final float MINIMUM_CONFIDENCE_TF_OD_API = 0.5f;
private static final boolean MAINTAIN_ASPECT = false;
private static final Size DESIRED_PREVIEW_SIZE = new Size(640, 480);
private static final boolean SAVE_PREVIEW_BITMAP = false;
private static final float TEXT_SIZE_DIP = 10;
OverlayView trackingOverlay;
private Integer sensorOrientation;
private TfliteRunner detector;
private long lastProcessingTimeMs = 0;
private Bitmap rgbFrameBitmap = null;
private Bitmap croppedBitmap = null;
private Bitmap cropCopyBitmap = null;
private boolean computingDetection = false;
private long timestamp = 0;
private Matrix frameToCropTransform;
private Matrix cropToFrameTransform;
private MultiBoxTracker tracker;
private BorderedText borderedText;
protected Size getDesiredPreviewFrameSize() {
return DESIRED_PREVIEW_SIZE;
}
protected int getLayoutId() {
return R.layout.tfe_od_camera_connection_fragment_tracking;
}
public float getConfThreshFromGUI(){ return ((float)((SeekBar)findViewById(R.id.conf_seekBar2)).getProgress()) / 100.0f;}
public float getIoUThreshFromGUI(){ return ((float)((SeekBar)findViewById(R.id.iou_seekBar2)).getProgress()) / 100.0f;}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
SeekBar conf_seekBar = (SeekBar)findViewById(R.id.conf_seekBar2);
conf_seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener(){
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
TextView conf_textView = (TextView)findViewById(R.id.conf_TextView2);
float thresh = (float)progress / 100.0f;
conf_textView.setText(String.format("Confidence Threshold: %.2f", thresh));
if (detector != null) detector.setConfThresh(thresh);
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
});
conf_seekBar.setMax(100);
conf_seekBar.setProgress(25);//0.25
SeekBar iou_seekBar = (SeekBar)findViewById(R.id.iou_seekBar2);
iou_seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener(){
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
TextView iou_textView = (TextView)findViewById(R.id.iou_TextView2);
float thresh = (float)progress / 100.0f;
iou_textView.setText(String.format("IoU Threshold: %.2f", thresh));
if (detector != null) detector.setIoUThresh(thresh);
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
});
iou_seekBar.setMax(100);
iou_seekBar.setProgress(45);//0.45
}
@Override
protected void setUseNNAPI(final boolean isChecked) {
}
@Override
protected void setNumThreads(final int numThreads) {
//runInBackground(() -> detector.setNumThreads(numThreads));
}
@Override
public void onPreviewSizeChosen(final Size size, final int rotation) {
final float textSizePx =
TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, TEXT_SIZE_DIP, getResources().getDisplayMetrics());
borderedText = new BorderedText(textSizePx);
borderedText.setTypeface(Typeface.MONOSPACE);
tracker = new MultiBoxTracker(this);
int cropSize = TF_OD_API_INPUT_SIZE;
try {
detector = new TfliteRunner(this, MODE, TF_OD_API_INPUT_SIZE, 0.25f, 0.45f);
cropSize = TF_OD_API_INPUT_SIZE;
} catch (final Exception e) {
e.printStackTrace();
Toast toast =
Toast.makeText(
getApplicationContext(), "Detector could not be initialized", Toast.LENGTH_SHORT);
toast.show();
finish();
}
previewWidth = size.getWidth();
previewHeight = size.getHeight();
int a = getScreenOrientation();
sensorOrientation = rotation - getScreenOrientation();
rgbFrameBitmap = Bitmap.createBitmap(previewWidth, previewHeight, Bitmap.Config.ARGB_8888);
croppedBitmap = Bitmap.createBitmap(cropSize, cropSize, Bitmap.Config.ARGB_8888);
frameToCropTransform =
ImageUtils.getTransformationMatrix(
previewWidth, previewHeight,
cropSize, cropSize,
sensorOrientation, MAINTAIN_ASPECT);
cropToFrameTransform = new Matrix();
frameToCropTransform.invert(cropToFrameTransform);
trackingOverlay = (OverlayView) findViewById(R.id.tracking_overlay);
trackingOverlay.addCallback(
new OverlayView.DrawCallback() {
@Override
public void drawCallback(final Canvas canvas) {
tracker.draw(canvas);
}
});
tracker.setFrameConfiguration(getDesiredPreviewFrameSize(), TF_OD_API_INPUT_SIZE, sensorOrientation);
}
@Override
protected void processImage() {
trackingOverlay.postInvalidate();
// No mutex needed as this method is not reentrant.
if (computingDetection) {
readyForNextImage();
return;
}
computingDetection = true;
rgbFrameBitmap.setPixels(getRgbBytes(), 0, previewWidth, 0, 0, previewWidth, previewHeight);
readyForNextImage();
final Canvas canvas = new Canvas(croppedBitmap);
canvas.drawBitmap(rgbFrameBitmap, frameToCropTransform, null);
runInBackground(
new Runnable() {
@Override
public void run() {
final long nowTime = SystemClock.uptimeMillis();
float fps = (float)1000 / (float)(nowTime - lastProcessingTimeMs);
lastProcessingTimeMs = nowTime;
//ImageUtils.saveBitmap(croppedBitmap);
detector.setInput(croppedBitmap);
final List<TfliteRunner.Recognition> results = detector.runInference();
cropCopyBitmap = Bitmap.createBitmap(croppedBitmap);
final Canvas canvas = new Canvas(cropCopyBitmap);
final Paint paint = new Paint();
paint.setColor(Color.RED);
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(2.0f);
for (final TfliteRunner.Recognition result : results) {
final RectF location = result.getLocation();
//canvas.drawRect(location, paint);
}
tracker.trackResults(results);
trackingOverlay.postInvalidate();
computingDetection = false;
runOnUiThread(
new Runnable() {
@Override
public void run() {
TextView fpsTextView = (TextView)findViewById(R.id.textViewFPS);
String fpsText = String.format("FPS: %.2f", fps);
fpsTextView.setText(fpsText);
TextView latencyTextView = (TextView)findViewById(R.id.textViewLatency);
latencyTextView.setText(detector.getLastElapsedTimeLog());
}
});
}
});
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/LegacyCameraConnectionFragment.java
================================================
package com.example.tflite_yolov5_test.camera;
import android.annotation.SuppressLint;
import android.app.Fragment;
import android.graphics.SurfaceTexture;
import android.hardware.Camera;
import android.os.Bundle;
import android.os.Handler;
import android.os.HandlerThread;
import android.util.Size;
import android.util.SparseIntArray;
import android.view.LayoutInflater;
import android.view.Surface;
import android.view.TextureView;
import android.view.View;
import android.view.ViewGroup;
import java.io.IOException;
import java.util.List;
import com.example.tflite_yolov5_test.R;
import com.example.tflite_yolov5_test.customview.AutoFitTextureView;
import com.example.tflite_yolov5_test.camera.env.ImageUtils;
public class LegacyCameraConnectionFragment extends Fragment {
/** Conversion from screen rotation to JPEG orientation. */
private static final SparseIntArray ORIENTATIONS = new SparseIntArray();
static {
ORIENTATIONS.append(Surface.ROTATION_0, 90);
ORIENTATIONS.append(Surface.ROTATION_90, 0);
ORIENTATIONS.append(Surface.ROTATION_180, 270);
ORIENTATIONS.append(Surface.ROTATION_270, 180);
}
private Camera camera;
private Camera.PreviewCallback imageListener;
private Size desiredSize;
/** The layout identifier to inflate for this Fragment. */
private int layout;
/** An {@link AutoFitTextureView} for camera preview. */
private AutoFitTextureView textureView;
private SurfaceTexture availableSurfaceTexture = null;
/**
* {@link TextureView.SurfaceTextureListener} handles several lifecycle events on a {@link
* TextureView}.
*/
private final TextureView.SurfaceTextureListener surfaceTextureListener =
new TextureView.SurfaceTextureListener() {
@Override
public void onSurfaceTextureAvailable(
final SurfaceTexture texture, final int width, final int height) {
availableSurfaceTexture = texture;
startCamera();
}
@Override
public void onSurfaceTextureSizeChanged(
final SurfaceTexture texture, final int width, final int height) {}
@Override
public boolean onSurfaceTextureDestroyed(final SurfaceTexture texture) {
return true;
}
@Override
public void onSurfaceTextureUpdated(final SurfaceTexture texture) {}
};
/** An additional thread for running tasks that shouldn't block the UI. */
private HandlerThread backgroundThread;
@SuppressLint("ValidFragment")
public LegacyCameraConnectionFragment(
final Camera.PreviewCallback imageListener, final int layout, final Size desiredSize) {
this.imageListener = imageListener;
this.layout = layout;
this.desiredSize = desiredSize;
}
@Override
public View onCreateView(
final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) {
return inflater.inflate(layout, container, false);
}
@Override
public void onViewCreated(final View view, final Bundle savedInstanceState) {
textureView = (AutoFitTextureView) view.findViewById(R.id.texture);
}
@Override
public void onActivityCreated(final Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
@Override
public void onResume() {
super.onResume();
startBackgroundThread();
// When the screen is turned off and turned back on, the SurfaceTexture is already
// available, and "onSurfaceTextureAvailable" will not be called. In that case, we can open
// a camera and start preview from here (otherwise, we wait until the surface is ready in
// the SurfaceTextureListener).
if (textureView.isAvailable()) {
startCamera();
} else {
textureView.setSurfaceTextureListener(surfaceTextureListener);
}
}
@Override
public void onPause() {
stopCamera();
stopBackgroundThread();
super.onPause();
}
/** Starts a background thread and its {@link Handler}. */
private void startBackgroundThread() {
backgroundThread = new HandlerThread("CameraBackground");
backgroundThread.start();
}
/** Stops the background thread and its {@link Handler}. */
private void stopBackgroundThread() {
backgroundThread.quitSafely();
try {
backgroundThread.join();
backgroundThread = null;
} catch (final InterruptedException e) {
}
}
private void startCamera() {
int index = getCameraId();
camera = Camera.open(index);
try {
Camera.Parameters parameters = camera.getParameters();
List<String> focusModes = parameters.getSupportedFocusModes();
if (focusModes != null
&& focusModes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE)) {
parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
}
List<Camera.Size> cameraSizes = parameters.getSupportedPreviewSizes();
Size[] sizes = new Size[cameraSizes.size()];
int i = 0;
for (Camera.Size size : cameraSizes) {
sizes[i++] = new Size(size.width, size.height);
}
Size previewSize =
CameraConnectionFragment.chooseOptimalSize(
sizes, desiredSize.getWidth(), desiredSize.getHeight());
parameters.setPreviewSize(previewSize.getWidth(), previewSize.getHeight());
camera.setDisplayOrientation(90);
camera.setParameters(parameters);
camera.setPreviewTexture(availableSurfaceTexture);
} catch (IOException exception) {
camera.release();
}
camera.setPreviewCallbackWithBuffer(imageListener);
Camera.Size s = camera.getParameters().getPreviewSize();
camera.addCallbackBuffer(new byte[ImageUtils.getYUVByteSize(s.height, s.width)]);
textureView.setAspectRatio(s.height, s.width);
camera.startPreview();
}
protected void stopCamera() {
if (camera != null) {
camera.stopPreview();
camera.setPreviewCallback(null);
camera.release();
camera = null;
}
}
private int getCameraId() {
Camera.CameraInfo ci = new Camera.CameraInfo();
for (int i = 0; i < Camera.getNumberOfCameras(); i++) {
Camera.getCameraInfo(i, ci);
if (ci.facing == Camera.CameraInfo.CAMERA_FACING_BACK) return i;
}
return -1; // No camera found
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/env/BorderedText.java
================================================
/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/
package com.example.tflite_yolov5_test.camera.env;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.Align;
import android.graphics.Paint.Style;
import android.graphics.Rect;
import android.graphics.Typeface;
import java.util.Vector;
/** A class that encapsulates the tedious bits of rendering legible, bordered text onto a canvas. */
public class BorderedText {
private final Paint interiorPaint;
private final Paint exteriorPaint;
private final float textSize;
/**
* Creates a left-aligned bordered text object with a white interior, and a black exterior with
* the specified text size.
*
* @param textSize text size in pixels
*/
public BorderedText(final float textSize) {
this(Color.WHITE, Color.BLACK, textSize);
}
/**
* Create a bordered text object with the specified interior and exterior colors, text size and
* alignment.
*
* @param interiorColor the interior text color
* @param exteriorColor the exterior text color
* @param textSize text size in pixels
*/
public BorderedText(final int interiorColor, final int exteriorColor, final float textSize) {
interiorPaint = new Paint();
interiorPaint.setTextSize(textSize);
interiorPaint.setColor(interiorColor);
interiorPaint.setStyle(Style.FILL);
interiorPaint.setAntiAlias(false);
interiorPaint.setAlpha(255);
exteriorPaint = new Paint();
exteriorPaint.setTextSize(textSize);
exteriorPaint.setColor(exteriorColor);
exteriorPaint.setStyle(Style.FILL_AND_STROKE);
exteriorPaint.setStrokeWidth(textSize / 8);
exteriorPaint.setAntiAlias(false);
exteriorPaint.setAlpha(255);
this.textSize = textSize;
}
public void setTypeface(Typeface typeface) {
interiorPaint.setTypeface(typeface);
exteriorPaint.setTypeface(typeface);
}
public void drawText(final Canvas canvas, final float posX, final float posY, final String text) {
canvas.drawText(text, posX, posY, exteriorPaint);
canvas.drawText(text, posX, posY, interiorPaint);
}
public void drawText(
final Canvas canvas, final float posX, final float posY, final String text, Paint bgPaint) {
float width = exteriorPaint.measureText(text);
float textSize = exteriorPaint.getTextSize();
Paint paint = new Paint(bgPaint);
paint.setStyle(Paint.Style.FILL);
paint.setAlpha(160);
canvas.drawRect(posX, (posY + (int) (textSize)), (posX + (int) (width)), posY, paint);
canvas.drawText(text, posX, (posY + textSize), interiorPaint);
}
public void drawLines(Canvas canvas, final float posX, final float posY, Vector<String> lines) {
int lineNum = 0;
for (final String line : lines) {
drawText(canvas, posX, posY - getTextSize() * (lines.size() - lineNum - 1), line);
++lineNum;
}
}
public void setInteriorColor(final int color) {
interiorPaint.setColor(color);
}
public void setExteriorColor(final int color) {
exteriorPaint.setColor(color);
}
public float getTextSize() {
return textSize;
}
public void setAlpha(final int alpha) {
interiorPaint.setAlpha(alpha);
exteriorPaint.setAlpha(alpha);
}
public void getTextBounds(
final String line, final int index, final int count, final Rect lineBounds) {
interiorPaint.getTextBounds(line, index, count, lineBounds);
}
public void setTextAlign(final Align align) {
interiorPaint.setTextAlign(align);
exteriorPaint.setTextAlign(align);
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/env/ImageUtils.java
================================================
package com.example.tflite_yolov5_test.camera.env;
import android.graphics.Bitmap;
import android.graphics.Matrix;
import android.os.Environment;
import java.io.File;
import java.io.FileOutputStream;
import android.graphics.Bitmap;
import android.graphics.Matrix;
import android.os.Environment;
import java.io.File;
import java.io.FileOutputStream;
/** Utility class for manipulating images. */
public class ImageUtils {
// This value is 2 ^ 18 - 1, and is used to clamp the RGB values before their ranges
// are normalized to eight bits.
static final int kMaxChannelValue = 262143;
/**
* Utility method to compute the allocated size in bytes of a YUV420SP image of the given
* dimensions.
*/
public static int getYUVByteSize(final int width, final int height) {
// The luminance plane requires 1 byte per pixel.
final int ySize = width * height;
// The UV plane works on 2x2 blocks, so dimensions with odd size must be rounded up.
// Each 2x2 block takes 2 bytes to encode, one each for U and V.
final int uvSize = ((width + 1) / 2) * ((height + 1) / 2) * 2;
return ySize + uvSize;
}
/**
* Saves a Bitmap object to disk for analysis.
*
* @param bitmap The bitmap to save.
*/
public static void saveBitmap(final Bitmap bitmap) {
saveBitmap(bitmap, "preview.png");
}
/**
* Saves a Bitmap object to disk for analysis.
*
* @param bitmap The bitmap to save.
* @param filename The location to save the bitmap to.
*/
public static void saveBitmap(final Bitmap bitmap, final String filename) {
final String root =
Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + "tensorflow";
final File myDir = new File(root);
if (!myDir.mkdirs()) {
}
final String fname = filename;
final File file = new File(myDir, fname);
if (file.exists()) {
file.delete();
}
try {
final FileOutputStream out = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.PNG, 99, out);
out.flush();
out.close();
} catch (final Exception e) {
}
}
public static void convertYUV420SPToARGB8888(byte[] input, int width, int height, int[] output) {
final int frameSize = width * height;
for (int j = 0, yp = 0; j < height; j++) {
int uvp = frameSize + (j >> 1) * width;
int u = 0;
int v = 0;
for (int i = 0; i < width; i++, yp++) {
int y = 0xff & input[yp];
if ((i & 1) == 0) {
v = 0xff & input[uvp++];
u = 0xff & input[uvp++];
}
output[yp] = YUV2RGB(y, u, v);
}
}
}
private static int YUV2RGB(int y, int u, int v) {
// Adjust and check YUV values
y = (y - 16) < 0 ? 0 : (y - 16);
u -= 128;
v -= 128;
// This is the floating point equivalent. We do the conversion in integer
// because some Android devices do not have floating point in hardware.
// nR = (int)(1.164 * nY + 2.018 * nU);
// nG = (int)(1.164 * nY - 0.813 * nV - 0.391 * nU);
// nB = (int)(1.164 * nY + 1.596 * nV);
int y1192 = 1192 * y;
int r = (y1192 + 1634 * v);
int g = (y1192 - 833 * v - 400 * u);
int b = (y1192 + 2066 * u);
// Clipping RGB values to be inside boundaries [ 0 , kMaxChannelValue ]
r = r > kMaxChannelValue ? kMaxChannelValue : (r < 0 ? 0 : r);
g = g > kMaxChannelValue ? kMaxChannelValue : (g < 0 ? 0 : g);
b = b > kMaxChannelValue ? kMaxChannelValue : (b < 0 ? 0 : b);
return 0xff000000 | ((r << 6) & 0xff0000) | ((g >> 2) & 0xff00) | ((b >> 10) & 0xff);
}
public static void convertYUV420ToARGB8888(
byte[] yData,
byte[] uData,
byte[] vData,
int width,
int height,
int yRowStride,
int uvRowStride,
int uvPixelStride,
int[] out) {
int yp = 0;
for (int j = 0; j < height; j++) {
int pY = yRowStride * j;
int pUV = uvRowStride * (j >> 1);
for (int i = 0; i < width; i++) {
int uv_offset = pUV + (i >> 1) * uvPixelStride;
out[yp++] = YUV2RGB(0xff & yData[pY + i], 0xff & uData[uv_offset], 0xff & vData[uv_offset]);
}
}
}
/**
* Returns a transformation matrix from one reference frame into another. Handles cropping (if
* maintaining aspect ratio is desired) and rotation.
*
* @param srcWidth Width of source frame.
* @param srcHeight Height of source frame.
* @param dstWidth Width of destination frame.
* @param dstHeight Height of destination frame.
* @param applyRotation Amount of rotation to apply from one frame to another. Must be a multiple
* of 90.
* @param maintainAspectRatio If true, will ensure that scaling in x and y remains constant,
* cropping the image if necessary.
* @return The transformation fulfilling the desired requirements.
*/
public static Matrix getTransformationMatrix(
final int srcWidth,
final int srcHeight,
final int dstWidth,
final int dstHeight,
final int applyRotation,
final boolean maintainAspectRatio) {
final Matrix matrix = new Matrix();
if (applyRotation != 0) {
if (applyRotation % 90 != 0) {
}
// Translate so center of image is at origin.
matrix.postTranslate(-srcWidth / 2.0f, -srcHeight / 2.0f);
// Rotate around origin.
matrix.postRotate(applyRotation);
}
// Account for the already applied rotation, if any, and then determine how
// much scaling is needed for each axis.
final boolean transpose = (Math.abs(applyRotation) + 90) % 180 == 0;
final int inWidth = transpose ? srcHeight : srcWidth;
final int inHeight = transpose ? srcWidth : srcHeight;
// Apply scaling if necessary.
if (inWidth != dstWidth || inHeight != dstHeight) {
final float scaleFactorX = dstWidth / (float) inWidth;
final float scaleFactorY = dstHeight / (float) inHeight;
if (maintainAspectRatio) {
// Scale by minimum factor so that dst is filled completely while
// maintaining the aspect ratio. Some image may fall off the edge.
final float scaleFactor = Math.max(scaleFactorX, scaleFactorY);
matrix.postScale(scaleFactor, scaleFactor);
} else {
// Scale exactly to fill dst from src.
matrix.postScale(scaleFactorX, scaleFactorY);
}
}
if (applyRotation != 0) {
// Translate back from origin centered reference to destination frame.
matrix.postTranslate(dstWidth / 2.0f, dstHeight / 2.0f);
}
return matrix;
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/tracker/MultiBoxTracker.java
================================================
package com.example.tflite_yolov5_test.camera.tracker;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.RectF;
import android.text.TextUtils;
import android.util.Log;
import android.util.Pair;
import android.util.Size;
import android.util.TypedValue;
import java.util.LinkedList;
import java.util.List;
import java.util.Queue;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Paint.Cap;
import android.graphics.Paint.Join;
import android.graphics.Paint.Style;
import android.graphics.RectF;
import android.text.TextUtils;
import android.util.Pair;
import android.util.TypedValue;
import java.util.LinkedList;
import java.util.List;
import java.util.Queue;
import com.example.tflite_yolov5_test.camera.env.BorderedText;
import com.example.tflite_yolov5_test.camera.env.ImageUtils;
import com.example.tflite_yolov5_test.TfliteRunner.Recognition;
/** A tracker that handles non-max suppression and matches existing objects to new detections. */
public class MultiBoxTracker {
private static final float TEXT_SIZE_DIP = 18;
private static final float MIN_SIZE = 16.0f;
private static final int[] COLORS = {
Color.BLUE,
Color.RED,
Color.GREEN,
Color.YELLOW,
Color.CYAN,
Color.MAGENTA,
Color.WHITE,
Color.parseColor("#55FF55"),
Color.parseColor("#FFA500"),
Color.parseColor("#FF8888"),
Color.parseColor("#AAAAFF"),
Color.parseColor("#FFFFAA"),
Color.parseColor("#55AAAA"),
Color.parseColor("#AA33AA"),
Color.parseColor("#0D0068")
};
final List<Pair<Float, RectF>> screenRects = new LinkedList<Pair<Float, RectF>>();
private final Queue<Integer> availableColors = new LinkedList<Integer>();
private final List<TrackedRecognition> trackedObjects = new LinkedList<TrackedRecognition>();
private final Paint boxPaint = new Paint();
private final float textSizePx;
private final BorderedText borderedText;
private Matrix frameToCanvasMatrix;
private int detectorInputSize;
private int frameWidth;
private int frameHeight;
private int sensorOrientation;
public MultiBoxTracker(final Context context) {
for (final int color : COLORS) {
availableColors.add(color);
}
boxPaint.setColor(Color.RED);
boxPaint.setStyle(Paint.Style.STROKE);
boxPaint.setStrokeWidth(10.0f);
boxPaint.setStrokeCap(Paint.Cap.ROUND);
boxPaint.setStrokeJoin(Paint.Join.ROUND);
boxPaint.setStrokeMiter(100);
textSizePx =
TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, TEXT_SIZE_DIP, context.getResources().getDisplayMetrics());
borderedText = new BorderedText(textSizePx);
}
public synchronized void setFrameConfiguration(
final Size frameSize, final int detectorInputSize, final int sensorOrientation) {
this.detectorInputSize = detectorInputSize;
//reverse
frameWidth = frameSize.getHeight();
frameHeight = frameSize.getWidth();
this.sensorOrientation = sensorOrientation;
}
public synchronized void drawDebug(final Canvas canvas) {
final Paint textPaint = new Paint();
textPaint.setColor(Color.WHITE);
textPaint.setTextSize(60.0f);
final Paint boxPaint = new Paint();
boxPaint.setColor(Color.RED);
boxPaint.setAlpha(200);
boxPaint.setStyle(Paint.Style.STROKE);
for (final Pair<Float, RectF> detection : screenRects) {
final RectF rect = detection.second;
canvas.drawRect(rect, boxPaint);
canvas.drawText("" + detection.first, rect.left, rect.top, textPaint);
borderedText.drawText(canvas, rect.centerX(), rect.centerY(), "" + detection.first);
}
}
public synchronized void trackResults(final List<Recognition> results) {
processResults(results);
}
private Matrix getFrameToCanvasMatrix() {
return frameToCanvasMatrix;
}
public synchronized void draw(final Canvas canvas) {
//WARNING(from lp6m): I don't understand about sensorOrientation, so fix to 0 for now...
for (final TrackedRecognition recognition : trackedObjects) {
float frameToCanvasScale = Math.min((float)canvas.getHeight() / frameHeight, (float)canvas.getWidth() / frameWidth);
float scale_width = frameToCanvasScale * ((float)frameWidth / detectorInputSize);
float scale_height = frameToCanvasScale * ((float)frameHeight / detectorInputSize);
float x1 = recognition.location.left * scale_width;
float y1 = recognition.location.top * scale_height;
float x2 = recognition.location.right * scale_width;
float y2 = recognition.location.bottom * scale_height;
final RectF trackedPos = new RectF(x1, y1, x2, y2);
boxPaint.setColor(recognition.color);
float cornerSize = Math.min(trackedPos.width(), trackedPos.height()) / 8.0f;
canvas.drawRoundRect(trackedPos, cornerSize, cornerSize, boxPaint);
final String labelString =
!TextUtils.isEmpty(recognition.title)
? String.format("%s %.2f", recognition.title, (100 * recognition.detectionConfidence))
: String.format("%.2f", (100 * recognition.detectionConfidence));
// borderedText.drawText(canvas, trackedPos.left + cornerSize, trackedPos.top,
// labelString);
borderedText.drawText(
canvas, trackedPos.left + cornerSize, trackedPos.top, labelString + "%", boxPaint);
}
}
private void processResults(final List<Recognition> results) {
final List<Pair<Float, Recognition>> rectsToTrack = new LinkedList<Pair<Float, Recognition>>();
screenRects.clear();
final Matrix rgbFrameToScreen = new Matrix(getFrameToCanvasMatrix());
for (final Recognition result : results) {
if (result.getLocation() == null) {
continue;
}
final RectF detectionFrameRect = new RectF(result.getLocation());
final RectF detectionScreenRect = new RectF();
rgbFrameToScreen.mapRect(detectionScreenRect, detectionFrameRect);
screenRects.add(new Pair<Float, RectF>(result.getConfidence(), detectionScreenRect));
if (detectionFrameRect.width() < MIN_SIZE || detectionFrameRect.height() < MIN_SIZE) {
continue;
}
rectsToTrack.add(new Pair<Float, Recognition>(result.getConfidence(), result));
}
trackedObjects.clear();
if (rectsToTrack.isEmpty()) {
return;
}
for (final Pair<Float, Recognition> potential : rectsToTrack) {
final TrackedRecognition trackedRecognition = new TrackedRecognition();
trackedRecognition.detectionConfidence = potential.first;
trackedRecognition.location = new RectF(potential.second.getLocation());
trackedRecognition.title = potential.second.getTitle();
trackedRecognition.color = COLORS[trackedObjects.size()];
trackedObjects.add(trackedRecognition);
if (trackedObjects.size() >= COLORS.length) {
break;
}
}
}
private static class TrackedRecognition {
RectF location;
float detectionConfidence;
int color;
String title;
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/customview/AutoFitTextureView.java
================================================
package com.example.tflite_yolov5_test.customview;
import android.content.Context;
import android.util.AttributeSet;
import android.view.TextureView;
/** A {@link TextureView} that can be adjusted to a specified aspect ratio. */
public class AutoFitTextureView extends TextureView {
private int ratioWidth = 0;
private int ratioHeight = 0;
public AutoFitTextureView(final Context context) {
this(context, null);
}
public AutoFitTextureView(final Context context, final AttributeSet attrs) {
this(context, attrs, 0);
}
public AutoFitTextureView(final Context context, final AttributeSet attrs, final int defStyle) {
super(context, attrs, defStyle);
}
/**
* Sets the aspect ratio for this view. The size of the view will be measured based on the ratio
* calculated from the parameters. Note that the actual sizes of parameters don't matter, that is,
* calling setAspectRatio(2, 3) and setAspectRatio(4, 6) make the same result.
*
* @param width Relative horizontal size
* @param height Relative vertical size
*/
public void setAspectRatio(final int width, final int height) {
if (width < 0 || height < 0) {
throw new IllegalArgumentException("Size cannot be negative.");
}
ratioWidth = width;
ratioHeight = height;
requestLayout();
}
@Override
protected void onMeasure(final int widthMeasureSpec, final int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
final int width = MeasureSpec.getSize(widthMeasureSpec);
final int height = MeasureSpec.getSize(heightMeasureSpec);
if (0 == ratioWidth || 0 == ratioHeight) {
setMeasuredDimension(width, height);
} else {
if (width < height * ratioWidth / ratioHeight) {
setMeasuredDimension(width, width * ratioHeight / ratioWidth);
} else {
setMeasuredDimension(height * ratioWidth / ratioHeight, height);
}
}
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/customview/OverlayView.java
================================================
package com.example.tflite_yolov5_test.customview;
import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.View;
import java.util.LinkedList;
import java.util.List;
import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.View;
import java.util.LinkedList;
import java.util.List;
/** A simple View providing a render callback to other classes. */
public class OverlayView extends View {
private final List<DrawCallback> callbacks = new LinkedList<DrawCallback>();
public OverlayView(final Context context, final AttributeSet attrs) {
super(context, attrs);
}
public void addCallback(final DrawCallback callback) {
callbacks.add(callback);
}
@Override
public synchronized void draw(final Canvas canvas) {
for (final DrawCallback callback : callbacks) {
callback.drawCallback(canvas);
}
}
/** Interface defining the callback for client classes. */
public interface DrawCallback {
public void drawCallback(final Canvas canvas);
}
}
================================================
FILE: app/tflite_yolov5_test/app/src/main/res/drawable/ic_dashboard_black_24dp.xml
================================================
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24.0"
android:viewportHeight="24.0">
<path
android:fillColor="#FF000000"
android:pathData="M3,13h8L11,3L3,3v10zM3,21h8v-6L3,15v6zM13,21h8L21,11h-8v10zM13,3v6h8L21,3h-8z" />
</vector>
================================================
FILE: app/tflite_yolov5_test/app/src/main/res/drawable/ic_home_black_24dp.xml
================================================
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24.0"
android:viewportHeight="24.0">
<path
android:fillColor="#FF000000"
android:pathData="M10,20v-6h4v6h5v-8h3L12,3 2,12h3v8z" />
</vector>
================================================
FILE: app/tflite_yolov5_test/app/src/main/res/drawable/ic_launcher_background.xml
================================================
<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="108dp"
android:height="108dp"
android:viewportWidth="108"
android:viewportHeight="108">
<path
android:fillColor="#3DDC84"
android:pathData="M0,0h108v108h-108z" />
<path
android:fillColor="#00000000"
android:pathData="M9,0L9,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,0L19,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M29,0L29,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M39,0L39,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M49,0L49,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M59,0L59,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M69,0L69,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M79,0L79,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M89,0L89,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M99,0L99,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,9L108,9"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,19L108,19"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,29L108,29"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,39L108,39"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,49L108,49"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,59L108,59"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,69L108,69"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,79L108,79"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,89L108,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,99L108,99"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,29L89,29"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,39L89,39"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,49L89,49"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,59L89,59"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,69L89,69"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,79L89,79"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M29,19L29,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M39,19L39,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M49,19L49,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M59,19L59,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M69,19L69,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M79,19L79,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
</vector>
================================================
FILE: app/tflite_yolov5_test/app/src/main/res/drawable/ic_notifications_black_24dp.xml
================================================
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24.0"
android:viewportHeight="24.0">
<path
android:fillColor="#FF000000"
android:pathData="M12,22c1.1,0 2,-0.9 2,-2h-4c0,1.1 0.89,2 2,2zM18,16v-5c0,-3.07 -1.64,-5.64 -4.5,-6.32L13.5,4c0,-0.83 -0.67,-1.5 -1.5,-1.5s-1.5,0.67 -1.5,1.5v0.68C7.63,5.36 6,7.92 6,11v5l-2,2v1h16v-1l-2,-2z" />
</vector>
================================================
FILE: app/tflite_yolov5_test/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
================================================
<vector xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:aapt="http://schemas.android.com/aapt"
android:width="108dp"
android:height="108dp"
android:viewportWidth="108"
android:viewportHeight="108">
<path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
<aapt:attr name="android:fillColor">
<gradient
android:endX="85.84757"
android:endY="92.4963"
android:startX="42.9492"
android:startY="49.59793"
android:type="linear">
<item
android:color="#44000000"
android:offset="0.0" />
<item
android:color="#00000000"
android:offset="1.0" />
</gradient>
</aapt:attr>
</path>
<path
android:fillColor="#FFFFFF"
android:fillType="nonZero"
android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
android:strokeWidth="1"
android:strokeColor="#00000000" />
</vector>
================================================
FILE: app/tflite_yolov5_test/app/src/main/res/layout/activity_camera.xml
================================================
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#00000000">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<FrameLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="600dp"
tools:context=".camera.CameraActivity">
</FrameLayout>
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="int8 320x320" />
<TextView
android:id="@+id/textViewFPS"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="FPS:" />
<TextView
android:id="@+id/textViewLatency"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="Inference: xxms Postprocess: yyms" />
<TextView
android:id="@+id/conf_TextView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="Confidence Threshold" />
<SeekBar
android:id="@+id/conf_seekBar2"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/iou_TextView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="IoU Threshold" />
<SeekBar
android:id="@+id/iou_seekBar2"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
================================================
FILE: app/tflite_yolov5_test/app/src/main/res/layout/activity_main.xml
================================================
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="60dp"
app:layout_constraintBottom_toBottomOf="parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="@+id/select_model_label"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:text="Select Model/Delegate"
android:textAppearance="@style/TextAppearance.AppCompat.Large"
android:textColor="#000000" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal">
<RadioGroup
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal">
<TextView
android:id="@+id/textView4"
android:layout_width="59dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Input Size" />
<RadioButton
android:id="@+id/radioButton_640"
android:layout_width="wrap_content"
android:layout_height="23dp"
android:layout_weight="1"
android:checked="true"
android:text="640"
android:textAppearance="@style/TextAppearance.AppCompat.Body1"
android:textSize="16sp"
android:typeface="normal" />
<RadioButton
android:id="@+id/radioButton_320"
android:layout_width="wrap_content"
android:layout_height="23dp"
android:layout_weight="1"
android:text="320"
android:textAppearance="@style/TextAppearance.AppCompat.Body1"
android:textSize="16sp"
android:typeface="normal" />
</RadioGroup>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal">
<RadioGroup
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal">
<TextView
android:id="@+id/textView7"
android:layout_width="59dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Model" />
<RadioButton
android:id="@+id/radioButton_modelFloat"
android:layout_width="wrap_content"
android:layout_height="23dp"
android:layout_weight="1"
android:checked="true"
android:text="fl
gitextract_67cfm_6g/
├── .gitmodules
├── LICENSE.md
├── README.md
├── app/
│ ├── README.md
│ └── tflite_yolov5_test/
│ ├── .gitignore
│ ├── .idea/
│ │ ├── .gitignore
│ │ ├── compiler.xml
│ │ ├── gradle.xml
│ │ ├── jarRepositories.xml
│ │ ├── misc.xml
│ │ ├── runConfigurations.xml
│ │ └── vcs.xml
│ ├── app/
│ │ ├── .gitignore
│ │ ├── CMakeLists.txt
│ │ ├── build.gradle
│ │ ├── proguard-rules.pro
│ │ └── src/
│ │ ├── androidTest/
│ │ │ └── java/
│ │ │ └── com/
│ │ │ └── example/
│ │ │ └── tflite_yolov5_test/
│ │ │ └── ExampleInstrumentedTest.java
│ │ ├── main/
│ │ │ ├── AndroidManifest.xml
│ │ │ ├── cpp/
│ │ │ │ ├── nms.h
│ │ │ │ └── postprocess.cpp
│ │ │ ├── java/
│ │ │ │ └── com/
│ │ │ │ └── example/
│ │ │ │ └── tflite_yolov5_test/
│ │ │ │ ├── ImageProcess.java
│ │ │ │ ├── MainActivity.java
│ │ │ │ ├── PathUtils.java
│ │ │ │ ├── TfliteRunMode.java
│ │ │ │ ├── TfliteRunner.java
│ │ │ │ ├── camera/
│ │ │ │ │ ├── CameraActivity.java
│ │ │ │ │ ├── CameraConnectionFragment.java
│ │ │ │ │ ├── DetectorActivity.java
│ │ │ │ │ ├── LegacyCameraConnectionFragment.java
│ │ │ │ │ ├── env/
│ │ │ │ │ │ ├── BorderedText.java
│ │ │ │ │ │ └── ImageUtils.java
│ │ │ │ │ └── tracker/
│ │ │ │ │ └── MultiBoxTracker.java
│ │ │ │ └── customview/
│ │ │ │ ├── AutoFitTextureView.java
│ │ │ │ └── OverlayView.java
│ │ │ └── res/
│ │ │ ├── drawable/
│ │ │ │ ├── ic_dashboard_black_24dp.xml
│ │ │ │ ├── ic_home_black_24dp.xml
│ │ │ │ ├── ic_launcher_background.xml
│ │ │ │ └── ic_notifications_black_24dp.xml
│ │ │ ├── drawable-v24/
│ │ │ │ └── ic_launcher_foreground.xml
│ │ │ ├── layout/
│ │ │ │ ├── activity_camera.xml
│ │ │ │ ├── activity_main.xml
│ │ │ │ └── tfe_od_camera_connection_fragment_tracking.xml
│ │ │ ├── menu/
│ │ │ │ └── bottom_nav_menu.xml
│ │ │ ├── mipmap-anydpi-v26/
│ │ │ │ ├── ic_launcher.xml
│ │ │ │ └── ic_launcher_round.xml
│ │ │ ├── navigation/
│ │ │ │ └── mobile_navigation.xml
│ │ │ ├── values/
│ │ │ │ ├── colors.xml
│ │ │ │ ├── dimens.xml
│ │ │ │ ├── strings.xml
│ │ │ │ └── themes.xml
│ │ │ └── values-night/
│ │ │ └── themes.xml
│ │ └── test/
│ │ └── java/
│ │ └── com/
│ │ └── example/
│ │ └── tflite_yolov5_test/
│ │ └── ExampleUnitTest.java
│ ├── build.gradle
│ ├── gradle/
│ │ └── wrapper/
│ │ ├── gradle-wrapper.jar
│ │ └── gradle-wrapper.properties
│ ├── gradle.properties
│ ├── gradlew
│ ├── gradlew.bat
│ └── settings.gradle
├── benchmark/
│ └── README.md
├── convert_model/
│ ├── README.md
│ └── quantize.py
├── docker/
│ └── Dockerfile
├── host/
│ ├── README.md
│ ├── cococlass.txt
│ ├── detect.py
│ ├── detector_head.py
│ ├── evaluate.py
│ ├── metric.py
│ ├── postprocess.py
│ ├── results/
│ │ ├── android_result.json
│ │ └── host_result.json
│ └── runner.py
└── tflite_model/
├── yolov5s_fp32_320.tflite
├── yolov5s_fp32_640.tflite
├── yolov5s_int8_320.tflite
└── yolov5s_int8_640.tflite
SYMBOL INDEX (233 symbols across 24 files)
FILE: app/tflite_yolov5_test/app/src/androidTest/java/com/example/tflite_yolov5_test/ExampleInstrumentedTest.java
class ExampleInstrumentedTest (line 18) | @RunWith(AndroidJUnit4.class)
method useAppContext (line 20) | @Test
FILE: app/tflite_yolov5_test/app/src/main/cpp/nms.h
type bbox (line 8) | struct bbox{
FILE: app/tflite_yolov5_test/app/src/main/cpp/postprocess.cpp
function sigmoid (line 9) | float sigmoid(float f){
function revsigmoid (line 13) | float revsigmoid(float f){
function detector (line 20) | void detector(
function jobjectArray (line 84) | jobjectArray Java_com_example_tflite_1yolov5_1test_TfliteRunner_postproc...
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/ImageProcess.java
class ImageProcess (line 14) | public class ImageProcess {
method drawBboxes (line 32) | static public Bitmap drawBboxes(List<TfliteRunner.Recognition> bboxes,...
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/MainActivity.java
class MainActivity (line 44) | public class MainActivity extends AppCompatActivity {
method checkPermission (line 61) | private void checkPermission(){
method onRequestPermissionsResult (line 66) | @Override
method isGranted (line 75) | private boolean isGranted(){
method onCreate (line 87) | @Override
method OnOpenImageButtonClick (line 125) | public void OnOpenImageButtonClick(View view){
method OnOpenDirButtonClick (line 132) | public void OnOpenDirButtonClick(View view){
method setResultImage (line 138) | public void setResultImage(Bitmap bitmap){
method bboxesToMap (line 142) | ArrayList<HashMap<String, Object>> bboxesToMap(File file, List<TfliteR...
method isBackgroundTaskRunning (line 174) | private boolean isBackgroundTaskRunning() {
method OnInferenceTaskCompleted (line 177) | public void OnInferenceTaskCompleted() {
method OnInferenceTaskStart (line 185) | public void OnInferenceTaskStart(){
method getConfThreshFromGUI (line 193) | public float getConfThreshFromGUI(){ return ((float)((SeekBar)findView...
method getIoUThreshFromGUI (line 194) | public float getIoUThreshFromGUI(){ return ((float)((SeekBar)findViewB...
method OnRunInferenceButtonClick (line 195) | public void OnRunInferenceButtonClick(View view){
method saveBboxesToJson (line 307) | String saveBboxesToJson(ArrayList<HashMap<String, Object>> resList, Fi...
method showErrorDialog (line 318) | private void showErrorDialog(String text){ showDialog("Error", text);}
method showInfoDialog (line 319) | private void showInfoDialog(String text){ showDialog("Info", text);}
method showDialog (line 320) | private void showDialog(String title, String text){
method addLog (line 327) | private void addLog(String logtxt){
method setOneLineLog (line 331) | private void setOneLineLog(String text){
method OnClearLogButton (line 335) | public void OnClearLogButton(View view) {
method setImageView (line 339) | void setImageView(Bitmap bitmap){
method OnOpenCameraButtonClick (line 343) | public void OnOpenCameraButtonClick(View view){
method onActivityResult (line 351) | @Override
class ImageFilenameFIlter (line 387) | class ImageFilenameFIlter implements FilenameFilter {
method accept (line 388) | public boolean accept(File dir, String name) {
method runInBackground (line 395) | protected synchronized void runInBackground(final Runnable r) {
method getRunModeFromGUI (line 400) | private TfliteRunMode.Mode getRunModeFromGUI(){
method getInputSizeFromGUI (line 423) | public int getInputSizeFromGUI(){
method onModelFloatClick (line 429) | public void onModelFloatClick(View view) {
method onModelIntClick (line 436) | public void onModelIntClick(View view) {
method onPrecisionFPClick (line 444) | public void onPrecisionFPClick(View view){
method onPrecisionIntClick (line 451) | public void onPrecisionIntClick(View view){
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/PathUtils.java
class PathUtils (line 18) | public class PathUtils {
method getPath (line 20) | public static String getPath(final Context context, final Uri uri) {
method getDataColumn (line 93) | public static String getDataColumn(Context context, Uri uri, String se...
method isExternalStorageDocument (line 115) | public static boolean isExternalStorageDocument(Uri uri) {
method isDownloadsDocument (line 120) | public static boolean isDownloadsDocument(Uri uri) {
method isMediaDocument (line 124) | public static boolean isMediaDocument(Uri uri) {
method isGooglePhotosUri (line 128) | public static boolean isGooglePhotosUri(Uri uri) {
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/TfliteRunMode.java
class TfliteRunMode (line 3) | public class TfliteRunMode {
type Mode (line 4) | public enum Mode{
method isQuantizedMode (line 12) | static public boolean isQuantizedMode(Mode mode){
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/TfliteRunner.java
class TfliteRunner (line 30) | public class TfliteRunner {
method postprocess (line 36) | public native float[][] postprocess(float[][][][] out1, float[][][][] ...
class InferenceRawResult (line 40) | class InferenceRawResult{
method InferenceRawResult (line 45) | public InferenceRawResult(int inputSize){
method TfliteRunner (line 57) | public TfliteRunner(Context context, Mode runmode, int inputSize, floa...
method loadModelFile (line 65) | private static MappedByteBuffer loadModelFile(AssetManager assets, Str...
method loadModel (line 74) | public void loadModel(Context context, Mode runmode, int inputSize, in...
method getResizedImage (line 113) | static public Bitmap getResizedImage(Bitmap bitmap, int inputSize) {
method setInput (line 117) | public void setInput(Bitmap resizedbitmap){
method getLastElapsedTimeLog (line 153) | public String getLastElapsedTimeLog() {
method runInference (line 156) | public List<Recognition> runInference(){
method get_coco91_from_coco80 (line 181) | static public int get_coco91_from_coco80(int idx){
method setConfThresh (line 185) | public void setConfThresh(float thresh){ this.conf_thresh = thresh;}
method setIoUThresh (line 186) | public void setIoUThresh(float thresh) {this.iou_thresh = thresh;}
class Recognition (line 190) | public class Recognition {
method Recognition (line 210) | public Recognition(
method getClass_idx (line 223) | public Integer getClass_idx(){
method getTitle (line 230) | public String getTitle() {
method getConfidence (line 234) | public Float getConfidence() {
method getLocation (line 238) | public RectF getLocation() {
method setLocation (line 242) | public void setLocation(RectF location) {
method toString (line 246) | @Override
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/CameraActivity.java
class CameraActivity (line 37) | public abstract class CameraActivity extends AppCompatActivity
method onCreate (line 67) | @Override
method chooseCamera (line 78) | private String chooseCamera() {
method fillBytes (line 111) | protected void fillBytes(final Image.Plane[] planes, final byte[][] yu...
method getScreenOrientation (line 122) | protected int getScreenOrientation() {
method onPreviewFrame (line 135) | @Override
method onImageAvailable (line 155) | @Override
method onCheckedChanged (line 217) | @Override
method onClick (line 220) | @Override
method onResume (line 223) | @Override
method onPause (line 232) | @Override
method runInBackground (line 244) | protected synchronized void runInBackground(final Runnable r) {
method getRgbBytes (line 249) | protected int[] getRgbBytes() {
method readyForNextImage (line 253) | protected void readyForNextImage() {
method isHardwareLevelSupported (line 258) | private boolean isHardwareLevelSupported(
method setFragment (line 267) | protected void setFragment() {
method processImage (line 297) | protected abstract void processImage();
method onPreviewSizeChosen (line 298) | protected abstract void onPreviewSizeChosen(final Size size, final int...
method getLayoutId (line 300) | protected abstract int getLayoutId();
method getDesiredPreviewFrameSize (line 302) | protected abstract Size getDesiredPreviewFrameSize();
method setNumThreads (line 304) | protected abstract void setNumThreads(int numThreads);
method setUseNNAPI (line 306) | protected abstract void setUseNNAPI(boolean isChecked);
method allPermissionsGranted (line 308) | private static boolean allPermissionsGranted(final int[] grantResults) {
method hasPermission (line 316) | private boolean hasPermission() {
method requestPermission (line 324) | private void requestPermission() {
method onRequestPermissionsResult (line 336) | @Override
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/CameraConnectionFragment.java
class CameraConnectionFragment (line 50) | @SuppressLint("ValidFragment")
method onCaptureProgressed (line 83) | @Override
method onCaptureCompleted (line 89) | @Override
method onOpened (line 120) | @Override
method onDisconnected (line 128) | @Override
method onError (line 135) | @Override
method onSurfaceTextureAvailable (line 152) | @Override
method onSurfaceTextureSizeChanged (line 158) | @Override
method onSurfaceTextureDestroyed (line 164) | @Override
method onSurfaceTextureUpdated (line 169) | @Override
method CameraConnectionFragment (line 173) | private CameraConnectionFragment(
method chooseOptimalSize (line 193) | protected static Size chooseOptimalSize(final Size[] choices, final in...
method newInstance (line 228) | public static CameraConnectionFragment newInstance(
method showToast (line 241) | private void showToast(final String text) {
method onCreateView (line 254) | @Override
method onViewCreated (line 260) | @Override
method onActivityCreated (line 265) | @Override
method onResume (line 270) | @Override
method onPause (line 286) | @Override
method setCamera (line 293) | public void setCamera(String cameraId) {
method setUpCameraOutputs (line 298) | private void setUpCameraOutputs() {
method openCamera (line 338) | @SuppressLint("MissingPermission")
method closeCamera (line 356) | private void closeCamera() {
method startBackgroundThread (line 379) | private void startBackgroundThread() {
method stopBackgroundThread (line 386) | private void stopBackgroundThread() {
method createCameraPreviewSession (line 397) | private void createCameraPreviewSession() {
method configureTransform (line 470) | private void configureTransform(final int viewWidth, final int viewHei...
type ConnectionCallback (line 500) | public interface ConnectionCallback {
method onPreviewSizeChosen (line 501) | void onPreviewSizeChosen(Size size, int cameraRotation);
class CompareSizesByArea (line 505) | static class CompareSizesByArea implements Comparator<Size> {
method compare (line 506) | @Override
class ErrorDialog (line 515) | public static class ErrorDialog extends DialogFragment {
method newInstance (line 518) | public static ErrorDialog newInstance(final String message) {
method onCreateDialog (line 526) | @Override
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/DetectorActivity.java
class DetectorActivity (line 31) | public class DetectorActivity extends CameraActivity implements ImageRea...
method getDesiredPreviewFrameSize (line 66) | protected Size getDesiredPreviewFrameSize() {
method getLayoutId (line 70) | protected int getLayoutId() {
method getConfThreshFromGUI (line 75) | public float getConfThreshFromGUI(){ return ((float)((SeekBar)findView...
method getIoUThreshFromGUI (line 76) | public float getIoUThreshFromGUI(){ return ((float)((SeekBar)findViewB...
method onCreate (line 77) | @Override
method setUseNNAPI (line 118) | @Override
method setNumThreads (line 123) | @Override
method onPreviewSizeChosen (line 127) | @Override
method processImage (line 179) | @Override
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/LegacyCameraConnectionFragment.java
class LegacyCameraConnectionFragment (line 26) | public class LegacyCameraConnectionFragment extends Fragment {
method onSurfaceTextureAvailable (line 52) | @Override
method onSurfaceTextureSizeChanged (line 59) | @Override
method onSurfaceTextureDestroyed (line 63) | @Override
method onSurfaceTextureUpdated (line 68) | @Override
method LegacyCameraConnectionFragment (line 74) | @SuppressLint("ValidFragment")
method onCreateView (line 82) | @Override
method onViewCreated (line 88) | @Override
method onActivityCreated (line 93) | @Override
method onResume (line 98) | @Override
method onPause (line 114) | @Override
method startBackgroundThread (line 122) | private void startBackgroundThread() {
method stopBackgroundThread (line 128) | private void stopBackgroundThread() {
method startCamera (line 137) | private void startCamera() {
method stopCamera (line 174) | protected void stopCamera() {
method getCameraId (line 183) | private int getCameraId() {
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/env/BorderedText.java
class BorderedText (line 28) | public class BorderedText {
method BorderedText (line 40) | public BorderedText(final float textSize) {
method BorderedText (line 52) | public BorderedText(final int interiorColor, final int exteriorColor, ...
method setTypeface (line 71) | public void setTypeface(Typeface typeface) {
method drawText (line 76) | public void drawText(final Canvas canvas, final float posX, final floa...
method drawText (line 81) | public void drawText(
method drawLines (line 94) | public void drawLines(Canvas canvas, final float posX, final float pos...
method setInteriorColor (line 102) | public void setInteriorColor(final int color) {
method setExteriorColor (line 106) | public void setExteriorColor(final int color) {
method getTextSize (line 110) | public float getTextSize() {
method setAlpha (line 114) | public void setAlpha(final int alpha) {
method getTextBounds (line 119) | public void getTextBounds(
method setTextAlign (line 124) | public void setTextAlign(final Align align) {
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/env/ImageUtils.java
class ImageUtils (line 16) | public class ImageUtils {
method getYUVByteSize (line 26) | public static int getYUVByteSize(final int width, final int height) {
method saveBitmap (line 42) | public static void saveBitmap(final Bitmap bitmap) {
method saveBitmap (line 52) | public static void saveBitmap(final Bitmap bitmap, final String filena...
method convertYUV420SPToARGB8888 (line 74) | public static void convertYUV420SPToARGB8888(byte[] input, int width, ...
method YUV2RGB (line 93) | private static int YUV2RGB(int y, int u, int v) {
method convertYUV420ToARGB8888 (line 117) | public static void convertYUV420ToARGB8888(
method getTransformationMatrix (line 154) | public static Matrix getTransformationMatrix(
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/tracker/MultiBoxTracker.java
class MultiBoxTracker (line 39) | public class MultiBoxTracker {
method MultiBoxTracker (line 71) | public MultiBoxTracker(final Context context) {
method setFrameConfiguration (line 89) | public synchronized void setFrameConfiguration(
method drawDebug (line 98) | public synchronized void drawDebug(final Canvas canvas) {
method trackResults (line 116) | public synchronized void trackResults(final List<Recognition> results) {
method getFrameToCanvasMatrix (line 120) | private Matrix getFrameToCanvasMatrix() {
method draw (line 124) | public synchronized void draw(final Canvas canvas) {
method processResults (line 153) | private void processResults(final List<Recognition> results) {
class TrackedRecognition (line 195) | private static class TrackedRecognition {
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/customview/AutoFitTextureView.java
class AutoFitTextureView (line 9) | public class AutoFitTextureView extends TextureView {
method AutoFitTextureView (line 13) | public AutoFitTextureView(final Context context) {
method AutoFitTextureView (line 17) | public AutoFitTextureView(final Context context, final AttributeSet at...
method AutoFitTextureView (line 21) | public AutoFitTextureView(final Context context, final AttributeSet at...
method setAspectRatio (line 33) | public void setAspectRatio(final int width, final int height) {
method onMeasure (line 42) | @Override
FILE: app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/customview/OverlayView.java
class OverlayView (line 19) | public class OverlayView extends View {
method OverlayView (line 22) | public OverlayView(final Context context, final AttributeSet attrs) {
method addCallback (line 26) | public void addCallback(final DrawCallback callback) {
method draw (line 30) | @Override
type DrawCallback (line 38) | public interface DrawCallback {
method drawCallback (line 39) | public void drawCallback(final Canvas canvas);
FILE: app/tflite_yolov5_test/app/src/test/java/com/example/tflite_yolov5_test/ExampleUnitTest.java
class ExampleUnitTest (line 12) | public class ExampleUnitTest {
method addition_isCorrect (line 13) | @Test
FILE: convert_model/quantize.py
function quantize_model (line 9) | def quantize_model(INPUT_SIZE, pb_path, output_path, calib_num, tfds_roo...
FILE: host/detector_head.py
class Detect (line 5) | class Detect(nn.Module):
method __init__ (line 6) | def __init__(self, nc=80, INPUT_SIZE=640):
method forward (line 24) | def forward(self, x):
method _make_grid (line 41) | def _make_grid(nx=20, ny=20):
FILE: host/evaluate.py
function evaluate_coco_dataset (line 11) | def evaluate_coco_dataset(
FILE: host/metric.py
class CocoMetric (line 7) | class CocoMetric():
method coco80_to_coco91_class (line 9) | def coco80_to_coco91_class(): # converts 80-index (val2014) to 91-ind...
method __init__ (line 16) | def __init__(self, path_to_annotation , INPUT_SIZE=640):
method load_results_from_json (line 29) | def load_results_from_json(self, json_path):
method add_bboxes (line 40) | def add_bboxes(self, bboxes, im_shape, image_id):
method summarize (line 64) | def summarize(self, output_json_path = None):
FILE: host/postprocess.py
function xywh2xyxy (line 5) | def xywh2xyxy(x):
function box_iou (line 15) | def box_iou(box1, box2):
function non_max_suppression (line 42) | def non_max_suppression(prediction, conf_thres=0.25, iou_thres=0.45, cla...
function plot_one_box (line 122) | def plot_one_box(x, im, color=(128, 128, 128), label=None, line_thicknes...
function clip_coords (line 136) | def clip_coords(boxes, shape):
function scale_coords (line 147) | def scale_coords(img1_shape, coords, img0_shape, ratio_pad=None):
class Colors (line 163) | class Colors:
method __init__ (line 165) | def __init__(self):
method __call__ (line 172) | def __call__(self, i, bgr=False):
method hex2rgb (line 177) | def hex2rgb(h): # rgb order (PIL)
function plot_and_save (line 182) | def plot_and_save(bboxres, input_img, path):
FILE: host/runner.py
class TfLiteRunner (line 11) | class TfLiteRunner():
method __init__ (line 12) | def __init__(self, model_path, INPUT_SIZE=640, conf_thres=0.25, iou_th...
method __run_tflite (line 39) | def __run_tflite(self, input_data):
method __preprocess (line 59) | def __preprocess(self, input_data, from_pil_img):
method detect (line 83) | def detect(self, input_data, from_pil_img=False):
Condensed preview — 77 files, each showing path, character count, and a content snippet. Download the .json file or copy for the full structured content (8,145K chars).
[
{
"path": ".gitmodules",
"chars": 81,
"preview": "[submodule \"yolov5\"]\n\tpath = yolov5\n\turl = https://github.com/ultralytics/yolov5\n"
},
{
"path": "LICENSE.md",
"chars": 35149,
"preview": " GNU GENERAL PUBLIC LICENSE\n Version 3, 29 June 2007\n\n Copyright (C) 2007 Free "
},
{
"path": "README.md",
"chars": 4867,
"preview": "# yolov5s_android:rocket: \n<div align=\"center\">\n<img src=\"https://github.com/lp6m/yolov5s_android/raw/media/android_app."
},
{
"path": "app/README.md",
"chars": 1197,
"preview": "# Android App\nThis applications uses [TFLite Android Support](https://www.tensorflow.org/lite/guide/android). \n\n### Tfl"
},
{
"path": "app/tflite_yolov5_test/.gitignore",
"chars": 266,
"preview": "*.iml\n.gradle\n/local.properties\n/.idea/caches\n/.idea/libraries\n/.idea/modules.xml\n/.idea/workspace.xml\n/.idea/navEditor."
},
{
"path": "app/tflite_yolov5_test/.idea/.gitignore",
"chars": 47,
"preview": "# Default ignored files\n/shelf/\n/workspace.xml\n"
},
{
"path": "app/tflite_yolov5_test/.idea/compiler.xml",
"chars": 169,
"preview": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<project version=\"4\">\n <component name=\"CompilerConfiguration\">\n <bytecodeTar"
},
{
"path": "app/tflite_yolov5_test/.idea/gradle.xml",
"chars": 748,
"preview": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<project version=\"4\">\n <component name=\"GradleMigrationSettings\" migrationVersio"
},
{
"path": "app/tflite_yolov5_test/.idea/jarRepositories.xml",
"chars": 1267,
"preview": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<project version=\"4\">\n <component name=\"RemoteRepositoriesConfiguration\">\n <r"
},
{
"path": "app/tflite_yolov5_test/.idea/misc.xml",
"chars": 370,
"preview": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<project version=\"4\">\n <component name=\"ProjectRootManager\" version=\"2\" language"
},
{
"path": "app/tflite_yolov5_test/.idea/runConfigurations.xml",
"chars": 337,
"preview": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<project version=\"4\">\n <component name=\"RunConfigurationProducerService\">\n <o"
},
{
"path": "app/tflite_yolov5_test/.idea/vcs.xml",
"chars": 238,
"preview": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<project version=\"4\">\n <component name=\"VcsDirectoryMappings\">\n <mapping dire"
},
{
"path": "app/tflite_yolov5_test/app/.gitignore",
"chars": 6,
"preview": "/build"
},
{
"path": "app/tflite_yolov5_test/app/CMakeLists.txt",
"chars": 1240,
"preview": "cmake_minimum_required(VERSION 3.4.1)\n\nadd_library( # Sets the name of the library.\n native-lib\n\n "
},
{
"path": "app/tflite_yolov5_test/app/build.gradle",
"chars": 2171,
"preview": "plugins {\n id 'com.android.application'\n}\n\nandroid {\n compileSdkVersion 29\n buildToolsVersion \"30.0.3\"\n\n def"
},
{
"path": "app/tflite_yolov5_test/app/proguard-rules.pro",
"chars": 750,
"preview": "# Add project specific ProGuard rules here.\n# You can control the set of applied configuration files using the\n# proguar"
},
{
"path": "app/tflite_yolov5_test/app/src/androidTest/java/com/example/tflite_yolov5_test/ExampleInstrumentedTest.java",
"chars": 774,
"preview": "package com.example.tflite_yolov5_test;\n\nimport android.content.Context;\n\nimport androidx.test.platform.app.Instrumentat"
},
{
"path": "app/tflite_yolov5_test/app/src/main/AndroidManifest.xml",
"chars": 1400,
"preview": "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<manifest xmlns:android=\"http://schemas.android.com/apk/res/android\"\n package="
},
{
"path": "app/tflite_yolov5_test/app/src/main/cpp/nms.h",
"chars": 6422,
"preview": "//https://github.com/martinkersner/non-maximum-suppression-cpp/blob/master/nms.cpp\n#include <vector>\n#include <numeric>\n"
},
{
"path": "app/tflite_yolov5_test/app/src/main/cpp/postprocess.cpp",
"chars": 5962,
"preview": "#include <string.h>\n#include <jni.h>\n#include <math.h>\n#include <iostream>\n#include \"nms.h\"\n\nusing namespace std;\n\nfloat"
},
{
"path": "app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/ImageProcess.java",
"chars": 2228,
"preview": "package com.example.tflite_yolov5_test;\n\nimport android.graphics.Bitmap;\nimport android.graphics.Canvas;\nimport android."
},
{
"path": "app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/MainActivity.java",
"chars": 21067,
"preview": "package com.example.tflite_yolov5_test;\n\nimport android.content.Context;\nimport android.graphics.RectF;\nimport android.o"
},
{
"path": "app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/PathUtils.java",
"chars": 4585,
"preview": "package com.example.tflite_yolov5_test;\nimport android.content.ContentUris;\nimport android.content.Context;\nimport andro"
},
{
"path": "app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/TfliteRunMode.java",
"chars": 358,
"preview": "package com.example.tflite_yolov5_test;\n\npublic class TfliteRunMode {\n public enum Mode{\n NONE_FP32,\n N"
},
{
"path": "app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/TfliteRunner.java",
"chars": 11576,
"preview": "package com.example.tflite_yolov5_test;\n\nimport android.content.Context;\nimport android.content.res.AssetFileDescriptor;"
},
{
"path": "app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/CameraActivity.java",
"chars": 12729,
"preview": "package com.example.tflite_yolov5_test.camera;\n\nimport androidx.appcompat.app.AppCompatActivity;\nimport androidx.appcomp"
},
{
"path": "app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/CameraConnectionFragment.java",
"chars": 22964,
"preview": "package com.example.tflite_yolov5_test.camera;\n\nimport android.annotation.SuppressLint;\nimport android.app.Activity;\nimp"
},
{
"path": "app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/DetectorActivity.java",
"chars": 9718,
"preview": "package com.example.tflite_yolov5_test.camera;\n\nimport android.graphics.Bitmap;\nimport android.graphics.Canvas;\nimport a"
},
{
"path": "app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/LegacyCameraConnectionFragment.java",
"chars": 6891,
"preview": "package com.example.tflite_yolov5_test.camera;\n\nimport android.annotation.SuppressLint;\nimport android.app.Fragment;\nimp"
},
{
"path": "app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/env/BorderedText.java",
"chars": 4204,
"preview": "/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.\n\nLicensed under the Apache License, Version 2.0 (the \"Lic"
},
{
"path": "app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/env/ImageUtils.java",
"chars": 6636,
"preview": "package com.example.tflite_yolov5_test.camera.env;\nimport android.graphics.Bitmap;\nimport android.graphics.Matrix;\nimpor"
},
{
"path": "app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/camera/tracker/MultiBoxTracker.java",
"chars": 7900,
"preview": "package com.example.tflite_yolov5_test.camera.tracker;\n\nimport android.content.Context;\nimport android.graphics.Canvas;\n"
},
{
"path": "app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/customview/AutoFitTextureView.java",
"chars": 2083,
"preview": "package com.example.tflite_yolov5_test.customview;\n\nimport android.content.Context;\nimport android.util.AttributeSet;\nim"
},
{
"path": "app/tflite_yolov5_test/app/src/main/java/com/example/tflite_yolov5_test/customview/OverlayView.java",
"chars": 1156,
"preview": "package com.example.tflite_yolov5_test.customview;\n\nimport android.content.Context;\nimport android.graphics.Canvas;\nimpo"
},
{
"path": "app/tflite_yolov5_test/app/src/main/res/drawable/ic_dashboard_black_24dp.xml",
"chars": 352,
"preview": "<vector xmlns:android=\"http://schemas.android.com/apk/res/android\"\n android:width=\"24dp\"\n android:height=\"24dp\"\n "
},
{
"path": "app/tflite_yolov5_test/app/src/main/res/drawable/ic_home_black_24dp.xml",
"chars": 310,
"preview": "<vector xmlns:android=\"http://schemas.android.com/apk/res/android\"\n android:width=\"24dp\"\n android:height=\"24dp\"\n "
},
{
"path": "app/tflite_yolov5_test/app/src/main/res/drawable/ic_launcher_background.xml",
"chars": 5606,
"preview": "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<vector xmlns:android=\"http://schemas.android.com/apk/res/android\"\n android:wi"
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"preview": "FROM nvidia/cuda:10.2-cudnn8-devel-ubuntu18.04\n\nENV DEBIAN_FRONTEND noninteractive\n\nRUN apt-get update --fix-missing\nRUN"
},
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"preview": "## Detect\nRun detection for image. \n```sh\nusage: detect.py [-h] [--image IMAGE] [-m MODEL_PATH]\n [--out"
},
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"path": "host/cococlass.txt",
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"preview": "person\nbicycle\ncar\nmotorbike\naeroplane\nbus\ntrain\ntruck\nboat\ntraffic light\nfire hydrant\nstop sign\nparking meter\nbench\nbir"
},
{
"path": "host/detect.py",
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"preview": "from PIL import Image\nimport cv2\n\nfrom runner import TfLiteRunner\nfrom postprocess import plot_and_save \n\n\nif __name__ ="
},
{
"path": "host/detector_head.py",
"chars": 1616,
"preview": "import torch\nimport torch.nn as nn\nimport numpy as np\n\nclass Detect(nn.Module):\n def __init__(self, nc=80, INPUT_SIZE"
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"path": "host/evaluate.py",
"chars": 3205,
"preview": "import torch\n\nfrom metric import CocoMetric\n\nfrom runner import TfLiteRunner\n\nimport torch.utils.data\nimport torchvision"
},
{
"path": "host/metric.py",
"chars": 3326,
"preview": "import json\n\nfrom pycocotools.coco import COCO\nfrom pycocotools.cocoeval import COCOeval\n\n\nclass CocoMetric():\n @stat"
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{
"path": "host/postprocess.py",
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"preview": "import numpy as np\nimport torch\nimport torchvision\n\ndef xywh2xyxy(x):\n # Convert nx4 boxes from [x, y, w, h] to [x1, "
},
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"path": "host/results/android_result.json",
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"preview": "[{\"score\":0.49514312,\"category_id\":1,\"bbox\":[231.9812,89.24237,173.11124,207.2948],\"image_id\":212226},{\"score\":0.8414811"
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"preview": "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"
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{
"path": "host/runner.py",
"chars": 3972,
"preview": "import cv2\nimport numpy as np\nimport tensorflow as tf\nimport torch\nimport torchvision\n\nfrom postprocess import non_max_s"
}
]
// ... and 5 more files (download for full content)
About this extraction
This page contains the full source code of the lp6m/yolov5s_android GitHub repository, extracted and formatted as plain text for AI agents and large language models (LLMs). The extraction includes 77 files (62.9 MB), approximately 1.9M tokens, and a symbol index with 233 extracted functions, classes, methods, constants, and types. Use this with OpenClaw, Claude, ChatGPT, Cursor, Windsurf, or any other AI tool that accepts text input. You can copy the full output to your clipboard or download it as a .txt file.
Extracted by GitExtract — free GitHub repo to text converter for AI. Built by Nikandr Surkov.