Merge pull request #2926 from invigorzz313/matchshapes

matching shapes

Author: avinashkranjan

Matching shapes/ReadMe.md

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+# Matching shapes
+This python script shows the degree of matching of shapes.
+
+## Setup Instructions
+### Install python3
+sudo apt-get install python3
+### Install pip (package installer for python)
+sudo apt-get install python3-pip
+### Install OpenCV library with pip
+pip3 install opencv-python
+### Install tkinter library
+sudo apt-get install python3-tk
+
+## Details/Output
+A dialog box appears with option to select images 1 and 2. Then clicking proceed will display the degree of similarity of the shapes in the two selected images.
+
+## Author
+Github: invigorzz313

Matching shapes/matching_shapes.py

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+import cv2
+import tkinter as tk
+from tkinter.filedialog import *
+
+window = tk.Tk()
+window.title("Matching shapes")
+window.geometry('350x200')
+
+def image1(): # getting image 1
+    photo1 = askopenfilename()
+    global gray1
+    img1 = cv2.imread(photo1)
+    img1 = cv2.resize(img1,(500,500))
+    gray1 = cv2.cvtColor(img1, cv2.COLOR_RGB2GRAY)
+    
+
+def image2(): # getting image 2
+    photo2 = askopenfilename()
+    global gray2
+    img2 = cv2.imread(photo2)
+    img2 = cv2.resize(img2,(500,500))
+    gray2 = cv2.cvtColor(img2, cv2.COLOR_RGB2GRAY)
+    
+
+def proceeds(): # detecting shape matching using contours
+    ret, threshold = cv2.threshold(gray1, 127, 255, 0)
+    ret, threshold2 = cv2.threshold(gray2, 127, 255, 0)
+    contours, hierarchy, rem1 = cv2.findContours(threshold, 2, 1)
+    cnt1 = contours[0]
+    contours, hierarchy, rem2 = cv2.findContours(threshold2, 2, 1)
+    cnt2 = contours[0]
+    ret = cv2.matchShapes(cnt1, cnt2, 1, 0.0)
+    print(ret)
+    label = tk.Label(window, text="Probability of shapes matching: "+str(1-ret)).grid(row=4,column=1)
+
+label = tk.Label(window, text="Image 1").grid(row=1, column=0)
+label = tk.Label(window, text="Image 2").grid(row=2, column=0)
+
+b1 = tk.Button(window, text='choose image 1', command=image1)
+b2 = tk.Button(window, text='choose image 2', command=image2)
+proceed = tk.Button(window, text='Proceed', command=proceeds)
+
+b1.grid(row=1,column=1)
+b2.grid(row=2,column=1)
+proceed.grid(row=3,column=1)
+
+window.mainloop()
+cv2.destroyAllWindows()