Full Code of lnugraha/trimap_generator for AI

Repository: lnugraha/trimap_generator
Branch: master
Commit: a279562b0d0f
Files: 314
Total size: 91.5 MB

Directory structure:
gitextract_8yw5injd/

├── .gitignore
├── LICENSE
├── README.md
├── archive/
│   ├── binary_to_trimap.ipynb
│   ├── trimap_module_20190519.py
│   └── trimap_module_20190811.py
├── assets/
│   ├── contours/
│   │   ├── point_mask_0.txt
│   │   ├── point_mask_1.txt
│   │   ├── point_mask_10.txt
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│   │   ├── point_mask_8.txt
│   │   ├── point_mask_80 2.txt
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│   │   ├── point_mask_90.txt
│   │   ├── point_mask_91 2.txt
│   │   └── point_mask_91.txt
│   └── polygons/
│       ├── raw_mask_0.txt
│       ├── raw_mask_1.txt
│       ├── raw_mask_10.txt
│       ├── raw_mask_11.txt
│       ├── raw_mask_12.txt
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│       ├── raw_mask_2.txt
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│       ├── raw_mask_5.txt
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│       ├── raw_mask_7.txt
│       ├── raw_mask_70.txt
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│       ├── raw_mask_9.txt
│       ├── raw_mask_90.txt
│       ├── raw_mask_91.txt
│       └── raw_mask_92.txt
├── doc/
│   ├── Doxyfile
│   ├── doxygen_log.txt
│   ├── html/
│   │   ├── doxygen.css
│   │   ├── dynsections.js
│   │   ├── files.html
│   │   ├── index.html
│   │   ├── jquery.js
│   │   ├── menu.js
│   │   ├── menudata.js
│   │   ├── namespaces.html
│   │   ├── namespacetrimap__module.html
│   │   ├── search/
│   │   │   ├── all_0.html
│   │   │   ├── all_0.js
│   │   │   ├── files_0.html
│   │   │   ├── files_0.js
│   │   │   ├── namespaces_0.html
│   │   │   ├── namespaces_0.js
│   │   │   ├── nomatches.html
│   │   │   ├── search.css
│   │   │   ├── search.js
│   │   │   └── searchdata.js
│   │   ├── tabs.css
│   │   ├── trimap__module_8py.html
│   │   └── trimap__module_8py_source.html
│   ├── py_filter.bat.txt
│   └── trimap_module.py
├── requirements.txt
├── src/
│   ├── binarymask.py
│   ├── feature_extraction.py
│   └── foreground_scaling.py
├── test/
│   ├── README.md
│   └── test_trimap_module.py
├── trimap_class.py
├── trimap_module.py
└── trimap_tutorial.ipynb

================================================
FILE CONTENTS
================================================

================================================
FILE: .gitignore
================================================
# Byte-compiled / optimized / DLL files
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*.py[cod]
*$py.class

# C extensions
*.so

# Distribution / packaging
.Python
build/
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# Translations
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# Django stuff:
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# Scrapy stuff:
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# Sphinx documentation
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# PyBuilder
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# Pyre type checker
.pyre/


================================================
FILE: LICENSE
================================================
MIT License

Copyright (c) 2019 Leo Nugraha

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.


================================================
FILE: README.md
================================================
## Automatic Trimap Generator ##

##### Keywords: Alpha Compositioning,Trimap #####
##### 關鍵: Alpha合成、三分圖 #####
##### キーワード:アルファチャンネル、マスク画像 #####

## Introduction ##
<ul>
<li/>In image matting, trimap estimates foreground from background by inscribing unknown region
<li/> Mathematically, an image can be represented by the following equation:
</ul>
<p align="center">
<a href="https://www.codecogs.com/eqnedit.php?latex=I_p&space;=&space;\alpha_p&space;F_p&space;&plus;&space;(1-\alpha_p)B_p;\,&space;\alpha_p&space;\in&space;[0,1]" target="_blank"><img src="https://latex.codecogs.com/gif.latex?I_p&space;=&space;\alpha_p&space;F_p&space;&plus;&space;(1-\alpha_p)B_p;\,&space;\alpha_p&space;\in&space;[0,1]" title="I_p = \alpha_p F_p + (1-\alpha_p)B_p;\, \alpha_p \in [0,1]" /></a>
</p>
In this equation, <i>I<sub>p</sub></i> denotes the entire image, <i>F<sub>p</sub></i> denotes a definite foreground, and <i>B<sub>p</sub></i> denotes a definite background. <br/>
On the other hand, <a href="https://www.codecogs.com/eqnedit.php?latex=\alpha_p" target="_blank"><img src="https://latex.codecogs.com/gif.latex?\alpha_p" title="\alpha_p" /></a> is an alpha matte constant with a value ranging between 0 and 1. An <a href="https://www.codecogs.com/eqnedit.php?latex=\alpha_p" target="_blank"><img src="https://latex.codecogs.com/gif.latex?\alpha_p" title="\alpha_p" /></a> value of 0 indicates that the pixel belongs to a background; whereas an <a href="https://www.codecogs.com/eqnedit.php?latex=\alpha_p" target="_blank"><img src="https://latex.codecogs.com/gif.latex?\alpha_p" title="\alpha_p" /></a> value of 1 indicates otherwise. Any <a href="https://www.codecogs.com/eqnedit.php?latex=\alpha_p" target="_blank"><img src="https://latex.codecogs.com/gif.latex?\alpha_p" title="\alpha_p" /></a> value in between means a mixed pixel that has to be determined. <br /><br />

## Descriptions ##
<ul>
  <li/>Generate a trimap (foreground, background, and unknown regions) from an input of binary (mask) image
  <li/>Foreground has a pixel value of 255; background has a pixel value of 0; and unknown has a pixel value of 127
  <li/>In this example, the trimap is generated by extending a binary image of a previously segmented tumor
  <li/>A binary image consists of two parts: foreground (white) which is the tumor and background (black) which is the surrounding region
  <li/>Keep in mind that the unknown region is simply an approximation rather than an exact delineation. Therefore, matting process becomes a crucial key to extract foreground images with exact precision
  <li />All binary images in this repository were generated from <b>U-Net</b> with a <b> Jaccard's Coefficient </b> of 0.94 (out of 1), indicating a high agreement between the ground truth and segmented mask images
  <li />Image erosion feature is added which may anticipate any overestimating foreground issue
</ul>
<br /><b>Input:</b> a binary image (from a segmented lesion)
<br /><b>Output:</b> a trimap with unknown region (gray) from tumor dilation <br/>

## Flow Chart ##
<p align="center"> <img src = "./assets/flowcharts/trimap_flowchart_small.png"> </p>

---
**TO DO:**
- [ ] **Finding The Most Dominant Foreground** -- automatic kernel design (generate an odd-sized matrix from an integer)
- [ ] **Contour Detection Module** -- an alternative method to circumscribe foreground without U-Net segmentation
- [ ] **Mask Contour Module** -- create a binary mask from contour point polygon

## Examples ##
**1 Dilating the binary image (trimap_module.py)** <br/>
```python
import cv2, os, sys
from trimap_module import trimap

path    = "./image/samples/seg_image.png";
image   = extractImage(path);
name    = "testImage";
size    = 10; # how many pixel extension do you want to dilate
number  = 1;  # numbering purpose 
trimap(image, name, size, number, erosion=False)
```
|**FULL IMAGE**| **MASK IMAGE**|**FOREGROUND**| **BACKGROUND**|
|:----------:|:----------:|:----------:|:----------:|
|![alt text](./images/examples/full_img.png)| ![alt text](./images/examples/seg_img.png) |  ![alt text](./images/examples/fg_img.png) | ![alt text](./images/examples/bg_img.png)


|**BINARY IMAGE**|**TRIMAP (10 PX)**|**TRIMAP (20 PX)**|**TRIMAP (30 PX)**|
|:----------:|:----------:|:----------:|:----------:|
|![alt text](./images/examples/seg_img.png)|![alt text](./images/examples/trimap.png)|![alt text](./images/examples/trimap_20.png)|![alt text](./images/examples/trimap_30.png)|

**2 Handling Non-Dominant Foreground (trimap_module.py)**
```python
import cv2, os, sys
from trimap_module import trimap
path    = "./image/test_images/test_image_10.png";
image   = extractImage(path);

kernel  = np.ones( (9,9), np.uint8 ); 
opening = unit01.morph_close(image,kernel);
trimap(opening, "trimap_result", 10, 1, erosion=False)
```
|**NOISES**|**ORIGINAL IMAGES**|**TRIMAPS PREVIOUS**|**TRIMAPS NEW**|
|:----------|:----------:|:----------:|:----------:|
|**Outside FG**|![alt text](./images/examples/opening.png)|![alt text](./images/examples/opening_trimap.png)|![alt text](./images/examples/opening_trimap_new.png)|
|**Inside FG**|![alt text](./images/examples/closing.png)|![alt text](./images/examples/closing_trimap.png)|![alt text](./images/examples/closing_trimap_new.png)|

**3 Impact of Eroding or Expanding Foreground (trimap_class.py)** <br/>
```python
import cv2, os, sys
from trimap_class import trimap
path    = "./image/test_images/test_image_12.png";
image   = extractImage(path);
    
trimap(image, ""trimap_result, 10, 1, DEFG=Erosion, num_iter=3);
```
The illustration starts with zero erosion/dilation; followed with one, three, five, until eleven iterations (an increment of two). <br />

<p>
<table style="margin-left:auto;margin-right:auto;">  
  <tr>
  <th> Erosion </th> <th> Expansion </th>
  </tr>
  <tr>
  <td> <img src = "./images/examples/erosion_effect.gif" height="200" width="200"> </td>
  <td> <img src = "./images/examples/dilation_effect.gif" height="200" width="200"> </td>
  </tr>
</table>
</p><br />


**4 Image Processing using Feature Extraction Module (feature_extraction.py)** <br/>
**Coming Soon**

## References ##
1. Vikas Gupta and Shanmuganathan Raman. (2017). "Automatic Trimap Generation for Image Matting". Indian Institute of Technology, Gandhinagar, IND [download](https://arxiv.org/pdf/1707.00333.pdf)
2. Olivier Juan and Reanud Keriven. (2005). "Trimap Segmentation for Fast and User-Friendly Alpha Matting". FRA [download](http://imagine.enpc.fr/publications/papers/05vlsm_c.pdf)
3. Jimei Yang, Brian Price, Scott Cohen, Honglak Lee, and Ming-Hsuan Yang. (2016). "Object Contour Detection with a Fully Convolutional Encoder-Decoder Network". Adobe Research, USA [download](https://arxiv.org/pdf/1603.04530.pdf)


================================================
FILE: archive/binary_to_trimap.ipynb
================================================
{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {
    "collapsed": true
   },
   "source": [
    "### December 30, 2018 ###\n",
    "\n",
    "**Single Input Image** <br />\n",
    "Online Interactive Tutorial with Jupyter <br />\n",
    "Generate a trimap from an input of mask image"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "%matplotlib inline\n",
    "import cv2, os\n",
    "import numpy as np\n",
    "import matplotlib.pyplot as plt"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "**Define The Trimap Function**"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "def trimap_generate(img, name, size, number):\n",
    "    \"\"\"\n",
    "    This function creates a trimap based on simple dilation algorithm\n",
    "    Inputs [3]: a binary image (black & white only), name of the image, dilation pixels \n",
    "    Output    : a trimap\n",
    "    \"\"\"\n",
    "    pixels    = 2*size + 1;                       # doubled and then plus one to have an odd-sized (centered) kernel            \n",
    "    kernel    = np.ones((pixels,pixels),np.uint8) # pixel extensions = size\n",
    "    dilation  = cv2.dilate(img, kernel, iterations = 1) \n",
    "\n",
    "    dilation  = np.where(dilation == 255, 127, dilation) \t## WHT to GRY\n",
    "    remake    = np.where(dilation != 127, 0, dilation)\t\t## Smoothing\n",
    "    remake    = np.where(img > 127, 200, dilation)\t\t\t## mark the tumor inside light GRY\n",
    "\n",
    "    remake    = np.where(remake < 127, 0, remake)\t\t\t## Embelishment\n",
    "    remake    = np.where(remake > 200, 0, remake)\t\t\t## Embelishment\n",
    "    remake    = np.where(remake == 200, 255, remake)\t\t## light GRY to WHT\n",
    "\n",
    "    path = \"./images/results/\"\n",
    "    new_name = '{}px_'.format(size) + name + '_{}.png'.format(number);\n",
    "    cv2.imwrite(os.path.join(path , new_name) , remake)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "**Load The Binary Image**"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 97,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/png": "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\n",
      "text/plain": [
       "<Figure size 432x288 with 1 Axes>"
      ]
     },
     "metadata": {
      "needs_background": "light"
     },
     "output_type": "display_data"
    }
   ],
   "source": [
    "name  = \"./images/practices/binary_0.png\";\n",
    "title = \"trimap\"\n",
    "size  = 10; # dilation size\n",
    "number= name[-5]; # obtain the number\n",
    "\n",
    "img = cv2.imread(name, cv2.IMREAD_GRAYSCALE)\n",
    "plt.imshow(img,cmap='gray');\n",
    "plt.axis('off');\n",
    "\n",
    "height, width = img.shape[:2]\n",
    "\n",
    "## Generate Trimap ##\n",
    "trimap_generate(img, title, size, number)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "**Check The Trimap Result**"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 99,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/png": "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\n",
      "text/plain": [
       "<Figure size 432x288 with 1 Axes>"
      ]
     },
     "metadata": {
      "needs_background": "light"
     },
     "output_type": "display_data"
    }
   ],
   "source": [
    "name  = \"./images/results/10px_trimap_0.png\";\n",
    "result = cv2.imread(name, cv2.IMREAD_GRAYSCALE)\n",
    "plt.imshow(result,cmap='gray');\n",
    "plt.axis('off');"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### January 06, 2018 ###\n",
    "In case of inexact binary images, erosion argument has been included to further shrink the overestimated foreground.\n",
    "\n",
    "The default parameter of erosion argument is None; if enabled, the default kernel size is (3x3). I would recommend changing the iteration number (default is 5) inside the cv2.erode() sub-routine, instead of changing the kernel size.\n",
    "\n",
    "In my case, all binary images were generated from **U-Net** with a Jaccard's Index of 94% with respect to physician's ground truth images. Therefore, I am pretty confident that the mask image does reflect the accurate foreground."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/png": "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\n",
      "text/plain": [
       "<Figure size 432x288 with 1 Axes>"
      ]
     },
     "metadata": {
      "needs_background": "light"
     },
     "output_type": "display_data"
    }
   ],
   "source": [
    "name  = \"./images/practices/binary_0.png\";\n",
    "title = \"trimap\"\n",
    "size  = 10; # dilation size\n",
    "number= name[-5]; # obtain the number\n",
    "\n",
    "img = cv2.imread(name, cv2.IMREAD_GRAYSCALE)\n",
    "plt.imshow(img,cmap='gray');\n",
    "plt.axis('off');"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "metadata": {},
   "outputs": [],
   "source": [
    "# This sub-routine allows foreground erosion\n",
    "def trimap_generate(img, name, size, number, erosion=False):\n",
    "    \"\"\"\n",
    "    This function creates a trimap based on simple dilation algorithm\n",
    "    Inputs [4]: a binary image (black & white only), name of the image, dilation pixels \n",
    "                the last argument is optional; i.e., how many iterations will the image get eroded\n",
    "    Output    : a trimap\n",
    "    \"\"\"\n",
    "    pixels    = 2*size + 1;                                ## doubled and then plus one to have an odd-sized (centered) kernel            \n",
    "    kernel    = np.ones((pixels,pixels),np.uint8)          ## pixel extensions = size\n",
    "    \n",
    "    if erosion is not False:\n",
    "        erosion = int(erosion)\n",
    "        erosion_kernel = np.ones((3,3), np.uint8)                ## Design an odd-sized erosion kernel\n",
    "        img = cv2.erode(img, erosion_kernel, iterations=erosion) ## How many erosion do you expect\n",
    "        img = np.where( img > 0, 255, img )                      ## Any gray-colored pixel becomes white (smoothing)\n",
    "    \n",
    "    dilation  = cv2.dilate(img, kernel, iterations = 1) \n",
    "\n",
    "    dilation  = np.where(dilation == 255, 127, dilation)    ## WHT to GRY\n",
    "    remake    = np.where(dilation != 127, 0, dilation)      ## Smoothing\n",
    "    remake    = np.where(img > 127, 200, dilation)          ## Mark the tumor inside light GRY\n",
    "\n",
    "    remake    = np.where(remake < 127, 0, remake)           ## Embelishment\n",
    "    remake    = np.where(remake > 200, 0, remake)           ## Embelishment\n",
    "    remake    = np.where(remake == 200, 255, remake)        ## Light GRY to WHT\n",
    "    \n",
    "    # remake    = img\n",
    "    path = \"./images/results/\"\n",
    "    new_name = '{}px_'.format(size) + name + '_{}.png'.format(number);\n",
    "    cv2.imwrite(os.path.join(path , new_name) , remake)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/png": "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\n",
      "text/plain": [
       "<Figure size 432x288 with 1 Axes>"
      ]
     },
     "metadata": {
      "needs_background": "light"
     },
     "output_type": "display_data"
    }
   ],
   "source": [
    "trimap_generate(img, title, size, number, erosion = False)\n",
    "\n",
    "name  = \"./images/results/10px_trimap_0.png\";\n",
    "result = cv2.imread(name, cv2.IMREAD_GRAYSCALE)\n",
    "plt.imshow(result,cmap='gray');\n",
    "plt.axis('off');"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.6.7"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}


================================================
FILE: archive/trimap_module_20190519.py
================================================
#!/usr/bin/env python
import cv2, os, sys
import numpy as np

def extractImage(path):
    # error handller if the intended path is not found
    image = cv2.imread(path, cv2.IMREAD_GRAYSCALE);
    return image

def checkImage(image):
    """
    Args:
        image: input image to be checked

    Returns:
        binary image

    Raises:
        RGB image, grayscale image, all-black, and all-white image

    """
    if len(image.shape) > 2:
        print("ERROR: non-binary image (RGB)");
        sys.exit();

    smallest = image.min(axis=0).min(axis=0); # lowest pixel value; should be 0 (black)
    largest  = image.max(axis=0).max(axis=0); # highest pixel value; should be 1 (white)

    if (smallest == 0 and largest == 0):
        print("ERROR: non-binary image (all black)");
        sys.exit();
    elif (smallest == 255 and largest == 255):
        print("ERROR: non-binary image (all white)");
        sys.exit();
    elif (smallest > 0 or largest < 255 ):
        print("ERROR: non-binary image (grayscale)");
        sys.exit();
    else:
        return True

class Toolbox:
    def __init__(self, image):
        self.image = image;

    def printImage(self):
        """
        Print image into a file for checking purpose
        unitTest = Toolbox(image);
        unitTest.printImage(image);
        """
        
        f = open("image_results.dat", "w+")
        for i in range(0, self.image.shape[0]):
            for j in range(0, self.image.shape[1]):
                f.write("%d " %self.image[i,j])
            f.write("\n")
        f.close()

    def saveImage(self):
        """
        Save the image as a bmp file
        """
        

    def displayImage(self):
        cv2.imshow('Displayed Image', self.image);
        cv2.waitKey(0);
        cv2.destroyAllWindows(); 

    def opening(self, image):
        # FIXME: to be completed
        # Effective when dealing with salt pepper noise
        kernel = np.ones( (5,5), np.uint8 )
        cv2.morphologyEx(self.image, cv2.MORPH_OPEN, kernel)
        return image

    def closing(self, image):
        # FIXME: to be completed
        # Effective when dealing with noises inside foreground
        kernel = np.ones( (5,5), np.uint8 )
        cv2.morphologyEx(self.image, cv2.MORPH_CLOSE, kernel)
        return image


def trimap(image, name, size, number, erosion=False):
    """
    This function creates a trimap based on simple dilation algorithm
    Inputs [4]: a binary image (black & white only), name of the image, dilation pixels
                the last argument is optional; i.e., how many iterations will the image get eroded
    Output    : a trimap
    """
    checkImage(image);
    
    row    = image.shape[0];
    col    = image.shape[1];

    pixels = 2*size + 1;                                     ## Double and plus 1 to have an odd-sized kernel
    kernel = np.ones((pixels,pixels),np.uint8)               ## How many pixel of extension do I get

    if erosion is not False:
        erosion = int(erosion)
        erosion_kernel = np.ones((3,3), np.uint8)                 ## Design an odd-sized erosion kernel
        image = cv2.erode(image, erosion_kernel, iterations=erosion)  ## How many erosion do you expect
        image = np.where(image > 0, 255, image)                         ## Any gray-clored pixel becomes white (smoothing)
        # Error-handler to prevent entire foreground annihilation
        if cv2.countNonZero(image) == 0:
            print("ERROR: foreground has been entirely eroded");
            sys.exit();

    dilation  = cv2.dilate(image, kernel, iterations = 1)

    dilation  = np.where(dilation == 255, 127, dilation) 	## WHITE to GRAY
    remake    = np.where(dilation != 127, 0, dilation)		## Smoothing
    remake    = np.where(image > 127, 200, dilation)		## mark the tumor inside GRAY

    remake    = np.where(remake < 127, 0, remake)		## Embelishment
    remake    = np.where(remake > 200, 0, remake)		## Embelishment
    remake    = np.where(remake == 200, 255, remake)		## GRAY to WHITE

    #############################################
    # Ensures only three pixel values available #
    # TODO: Optimization with Cython            #
    #############################################    
    for i in range(0,row):
        for j in range (0,col):
            if (remake[i,j] != 0 and remake[i,j] != 255):
                remake[i,j] = 127;

    path = "./images/results/"                                  ## Change the directory
    new_name = '{}px_'.format(size) + name + '_{}.png'.format(number);
    cv2.imwrite(os.path.join(path , new_name) , remake)


#############################################
###             TESTING SECTION           ###
#############################################
if __name__ == '__main__':

    path  = "./images/test_images/test_image_12.png";
    image = extractImage(path)

    size = 10;
    number = path[-5];
    title = "test_image"

    trimap(image, title, size, number, erosion=False);

    ### Testing Methods from the Toolbox Class
    ### unit01 = Toolbox(image);
    ### unit01.displayImage();


================================================
FILE: archive/trimap_module_20190811.py
================================================
#!/usr/bin/env python
import cv2, os, sys
import numpy as np

def extractImage(path):
    # error handller if the intended path is not found
    image = cv2.imread(path, cv2.IMREAD_GRAYSCALE);
    return image

def checkImage(image):
    """
    Args:
        image: input image to be checked
    Returns:
        binary image
    Raises:
        RGB image, grayscale image, all-black, and all-white image

    """
    if len(image.shape) > 2:
        print("ERROR: non-binary image (RGB)");
        sys.exit();

    smallest = image.min(axis=0).min(axis=0); # lowest pixel value; should be 0 (black)
    largest  = image.max(axis=0).max(axis=0); # highest pixel value; should be 1 (white)

    if (smallest == 0 and largest == 0):
        print("ERROR: non-binary image (all black)");
        sys.exit();
    elif (smallest == 255 and largest == 255):
        print("ERROR: non-binary image (all white)");
        sys.exit();
    elif (smallest > 0 or largest < 255 ):
        print("ERROR: non-binary image (grayscale)");
        sys.exit();
    else:
        return True

class Toolbox:
    def __init__(self, image):
        self.image = image;

    @property
    def printImage(self):
        """
        Print image into a file for checking purpose
        unitTest = Toolbox(image);
        unitTest.printImage(image);
        """
        f = open("image_results.dat", "w+")
        for i in range(0, self.image.shape[0]):
            for j in range(0, self.image.shape[1]):
                f.write("%d " %self.image[i,j])
            f.write("\n")
        f.close()
        
    @property
    def displayImage(self):
        """
        Display the image on a window
        Press any key to exit
        """
        cv2.imshow('Displayed Image', self.image);
        cv2.waitKey(0);
        cv2.destroyAllWindows(); 

    def saveImage(self, title, extension):
        """
        Save as a specific image format (bmp, png, or jpeg)
        """
        cv2.imwrite("{}.{}".format(title,extension), self.image);        

    def morph_open(self, image, kernel):
        """
        Remove all white noises or speckles outside images
        Need to tune the kernel size
        Instruction:
        unit01 = Toolbox(image);
        kernel = np.ones( (9,9), np.uint8 );
        morph  = unit01.morph_open(input_image, kernel);
        """
        bin_open = cv2.morphologyEx(self.image, cv2.MORPH_OPEN, kernel)
        return bin_open

    def morph_close(self, image, kernel):
        """
        Remove all black noises or speckles inside images
        Need to tune the kernel size
        Instruction:
        unit01 = Toolbox(image);
        kernel = np.ones( (11,11)_, np.uint8 );
        morph  = unit01.morph_close(input_image, kernel);
        """        
        bin_close = cv2.morphologyEx(self.image, cv2.MORPH_CLOSE, kernel)
        return bin_close


def trimap(image, name, size, number, erosion=False):
    """
    This function creates a trimap based on simple dilation algorithm
    Inputs [4]: a binary image (black & white only), name of the image, dilation pixels
                the last argument is optional; i.e., how many iterations will the image get eroded
    Output    : a trimap
    """
    checkImage(image);
    
    row    = image.shape[0];
    col    = image.shape[1];

    pixels = 2*size + 1;                                     ## Double and plus 1 to have an odd-sized kernel
    kernel = np.ones((pixels,pixels),np.uint8)               ## How many pixel of extension do I get

    if erosion is not False:
        erosion = int(erosion)
        erosion_kernel = np.ones((3,3), np.uint8)                     ## Design an odd-sized erosion kernel
        image = cv2.erode(image, erosion_kernel, iterations=erosion)  ## How many erosion do you expect
        image = np.where(image > 0, 255, image)                       ## Any gray-clored pixel becomes white (smoothing)
        # Error-handler to prevent entire foreground annihilation
        if cv2.countNonZero(image) == 0:
            print("ERROR: foreground has been entirely eroded");
            sys.exit();

    dilation  = cv2.dilate(image, kernel, iterations = 1)

    dilation  = np.where(dilation == 255, 127, dilation) 	## WHITE to GRAY
    remake    = np.where(dilation != 127, 0, dilation)		## Smoothing
    remake    = np.where(image > 127, 200, dilation)		## mark the tumor inside GRAY

    remake    = np.where(remake < 127, 0, remake)		## Embelishment
    remake    = np.where(remake > 200, 0, remake)		## Embelishment
    remake    = np.where(remake == 200, 255, remake)		## GRAY to WHITE

    #############################################
    # Ensures only three pixel values available #
    # TODO: Optimization with Cython            #
    #############################################    
    for i in range(0,row):
        for j in range (0,col):
            if (remake[i,j] != 0 and remake[i,j] != 255):
                remake[i,j] = 127;

    path = "./images/results/"                                  ## Change the directory
    new_name = '{}px_'.format(size) + name + '_{}.png'.format(number);
    cv2.imwrite(os.path.join(path , new_name) , remake)


#############################################
###             TESTING SECTION           ###
#############################################
if __name__ == '__main__':

    path  = "./images/test_images/test_image_11.png";
    image = extractImage(path)

    size = 10;
    number = path[-5];
    title = "test_image"

    unit01  = Toolbox(image);
    kernel1 = np.ones( (11,11), np.uint8 );
    unit01.displayImage;
    
    opening = unit01.morph_close(image,kernel1);
    trimap(opening, title, size, number, erosion=False);
    unit02  = Toolbox(opening);
    unit02.displayImage;

    ########################################################
    ## Default instruction (no binary opening or closing  ##
    ## trimap(image, title, size, number, erosion=False); ##
    ########################################################


================================================
FILE: assets/contours/point_mask_0.txt
================================================
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