def convert_mask_to_polygon(mask): contours = None if int(cv2.__version__.split('.')[0]) > 3: contours = cv2.findContours(mask, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_TC89_KCOS)[0] else: contours = cv2.findContours(mask, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_TC89_KCOS)[1] contours = max(contours, key=lambda arr: arr.size) if contours.shape.count(1): contours = np.squeeze(contours) if contours.size 3 ..