demonstration of CLAHE

CLAHE_demo.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "from ipywidgets import interact, fixed\n",
    "from matplotlib import pyplot as plt\n",
    "from utils import clahe\n",
    "import ipywidgets as widgets\n",
    "import cv2\n",
    "\n",
    "\n",
    "def clahe_demo(img, clip_limit=3.0, tile_grid_size=8, figure_size=16):\n",
    "    result = clahe(img, mode='bgr', clip_limit=clip_limit, tile_grid_size=tile_grid_size)\n",
    "    \n",
    "    plt.figure(figsize=(figure_size, figure_size))\n",
    "    plt.subplot(1, 2, 1)\n",
    "    plt.imshow(img[:, :, ::-1])\n",
    "\n",
    "    plt.subplot(1, 2, 2)\n",
    "    plt.imshow(result[:, :, ::-1])\n",
    "    plt.show()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "imfile = 'p1.jpg'\n",
    "img = cv2.imread(imfile, 1)\n",
    "res = interact(clahe_demo, img=fixed(img), mode=fixed('bgr'), \n",
    "               clip_limit=widgets.FloatSlider(min=0,max=30,step=0.1,value=3.0),\n",
    "               tile_grid_size=widgets.IntSlider(min=1,max=50,step=1,value=8),\n",
    "               figure_size=widgets.IntSlider(min=0,max=50,step=1,value=20))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "imfile = 'p2.jpg'\n",
    "img = cv2.imread(imfile, 1)\n",
    "res = interact(clahe_demo, img=fixed(img), mode=fixed('bgr'), \n",
    "               clip_limit=widgets.FloatSlider(min=0,max=30,step=0.1,value=3.0),\n",
    "               tile_grid_size=widgets.IntSlider(min=1,max=50,step=1,value=8),\n",
    "               figure_size=widgets.IntSlider(min=0,max=50,step=1,value=20))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "imfile = 'p3.jpg'\n",
    "img = cv2.imread(imfile, 1)\n",
    "res = interact(clahe_demo, img=fixed(img), mode=fixed('bgr'), \n",
    "               clip_limit=widgets.FloatSlider(min=0,max=30,step=0.1,value=3.0),\n",
    "               tile_grid_size=widgets.IntSlider(min=1,max=50,step=1,value=8),\n",
    "               figure_size=widgets.IntSlider(min=0,max=50,step=1,value=20))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 2",
   "language": "python",
   "name": "python2"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 2
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython2",
   "version": "2.7.13"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 1
}

p1.jpg

p2.jpg

p3.jpg

p4.jpg