__, contours, hierarchy = cv2.findContours(mask, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE) ValueError: not enough values to unpack (expected 3, got 2)

[nuaawqf]

Hi:
I think this code uses the old version of cv2. When I am using the latest cv2, I meet this error.

Then I change line 179 to :
contours, hierarchy = cv2.findContours(mask, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)

The problem is solved.