These are jpg images. I am trying to recognize 196 (14*14) corners, then I use extrapolating to get the remaining corners. (The extrapolating works, so that isn't the problem.) It is about the board, the rest is background that doesn't do anything. The whole experimental code is here if you are...
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I am trying to recognize a chessboardpattern using opencv(cv2) and python.
I use the built-in findchessboardcorners feature which returns nothing if it doesn’t find the hole board.
Right now, I use this code.
img=cv2.imread(path_board)
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
gray =...