adaptive threading

Author: keshavsingh4522

Linkedin/Opencv/threshold/0.jpeg

@@ -0,0 +1,15 @@
+# adaptive threading --->  https://www.geeksforgeeks.org/python-thresholding-techniques-using-opencv-set-2-adaptive-thresholding
+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)
+
+# adaptive threading ---> remove uneven binding
+adap_thresh=cv2.adaptiveThreshold(img,255,cv2.ADAPTIVE_THRESH_GAUSSIAN_C,cv2.THRESH_BINARY,115,1)
+cv2.imshow('adaptive thresh',adap_thresh)
+
+cv2.waitKey(0)
+cv2.destroyAllWindows()