Python OpenCV TypeError : "corners is not a numpy array, neither a scalar" -


running opencv findchessboardcorners, error:

ret, corners = cv2.findchessboardcorners(_image, size, cv2.calib_cb_adaptive_thresh+cv2.calib_cb_fast_check+cv2.calib_cb_normalize_image) typeerror: corners not numpy array, neither scalar

this relevant code:

size = (10,6) _image = cv2.imread(filepath, 0) ret, corners = cv2.findchessboardcorners(_image, size, cv2.calib_cb_adaptive_thresh+cv2.calib_cb_fast_check+cv2.calib_cb_normalize_image)

maybe, should this:

ret, corners = cv2.findchessboardcorners(_image, size, flags=cv2.calib_cb_adaptive_thresh+cv2.calib_cb_fast_check+cv2.calib_cb_normalize_image)

based on docs, third parameter corners , looks expecting flags.


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