Lecture 27 Harris Cornor Detection.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "df2c58d7",
   "metadata": {},
   "outputs": [],
   "source": [
    "import cv2\n",
    "import numpy as np"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "1da3bb2b",
   "metadata": {},
   "outputs": [],
   "source": [
    "img = cv2.imread(\"cornor.webp\")\n",
    "gry = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)\n",
    "\n",
    "gry = np.float32(gry)\n",
    "\n",
    "res = cv2.cornerHarris(gry, 5, 3, 0.05)\n",
    "\n",
    "res = cv2.dilate(res, None)\n",
    "\n",
    "img[res>0.01 * res.max()] = [0,0,255]\n",
    "\n",
    "img = cv2.resize(img, (550,500))\n",
    "\n",
    "cv2.imshow(\"image\", img)\n",
    "cv2.waitKey(0)\n",
    "cv2.destroyAllWindows()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "83effa43",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "id": "5da429da",
   "metadata": {},
   "outputs": [],
   "source": [
    "img = cv2.imread(\"festival.jpg\")\n",
    "gry = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)\n",
    "\n",
    "gry = np.float32(gry)\n",
    "\n",
    "res = cv2.cornerHarris(gry, 2, 3, 0.05)\n",
    "\n",
    "res = cv2.dilate(res, None)\n",
    "\n",
    "img[res>0.01 * res.max()] = [0,0,255]\n",
    "\n",
    "img = cv2.resize(img, (550,500))\n",
    "\n",
    "cv2.imshow(\"image\", img)\n",
    "cv2.waitKey(0)\n",
    "cv2.destroyAllWindows()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "5d14b065",
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3 (ipykernel)",
   "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": "3.11.5"
  },
  "varInspector": {
   "cols": {
    "lenName": 16,
    "lenType": 16,
    "lenVar": 40
   },
   "kernels_config": {
    "python": {
     "delete_cmd_postfix": "",
     "delete_cmd_prefix": "del ",
     "library": "var_list.py",
     "varRefreshCmd": "print(var_dic_list())"
    },
    "r": {
     "delete_cmd_postfix": ") ",
     "delete_cmd_prefix": "rm(",
     "library": "var_list.r",
     "varRefreshCmd": "cat(var_dic_list()) "
    }
   },
   "types_to_exclude": [
    "module",
    "function",
    "builtin_function_or_method",
    "instance",
    "_Feature"
   ],
   "window_display": false
  }
 },
 "nbformat": 4,
 "nbformat_minor": 5
}