Otsu Threading

Author: keshavsingh4522

Linkedin/Opencv/otsu_threading.py

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+# otsu threading ---> https://www.geeksforgeeks.org/python-thresholding-techniques-using-opencv-set-3-otsu-thresholding/
+'We use the Traditional cv2.threshold function and use cv2.THRESH_OTSU as an extra flag.'
+import cv2
+img=cv2.imread('sudoku.png',0)
+cv2.imshow('Original',img)
+
+# simaple threading ---> problem ---> uneven binding
+ret,frame=cv2.threshold(img,85,255,cv2.THRESH_BINARY)
+cv2.imshow('Binary',frame)
+
+# otsu
+ret,frame=cv2.threshold(img,85,255,cv2.THRESH_BINARY+cv2.THRESH_OTSU)
+cv2.imshow('Otsu',frame)
+
+cv2.waitKey(0)
+cv2.destroyAllWindows()