Image manipulation

Author: simran130810

Create.ipynb

@@ -0,0 +1,104 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Translation"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import cv2\n",
+    "import numpy as np\n",
+    "\n",
+    "pic = cv2.imread(\"cvimg.jpg\")\n",
+    "\n",
+    "height,width = pic.shape[:2]\n",
+    "tx,ty = height/4,width/4\n",
+    "\n",
+    "T = np.float32([[1,0,tx],[0,1,ty]])\n",
+    "\n",
+    "translate_pic = cv2.warpAffine(pic,T,(width,height))\n",
+    "cv2.imshow(\"Translation\",translate_pic)\n",
+    "cv2.waitKey(0)\n",
+    "cv2.destroyAllWindows()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Rotation"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import cv2\n",
+    "import numpy as np\n",
+    "\n",
+    "pic = cv2.imread(\"cvimg.jpg\")\n",
+    "\n",
+    "height,width = pic.shape[:2]\n",
+    "center_x,center_y = height/2,width/2\n",
+    "\n",
+    "R = cv2.getRotationMatrix2D((center_x,center_y),45,1)\n",
+    "rotated_pic = cv2.warpAffine(pic,R,(width,height))\n",
+    "\n",
+    "cv2.imshow(\"Rotation\",rotated_pic)\n",
+    "cv2.waitKey(0)\n",
+    "cv2.destroyAllWindows()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "##rotate by 90degree angle\n",
+    "rm = cv2.transpose(pic)\n",
+    "\n",
+    "cv2.imshow(\"Transpose-Rotation\",rm)\n",
+    "cv2.waitKey(0)\n",
+    "cv2.destroyAllWindows()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "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": "3.7.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}