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                                            Giang Nguyen Truong

cv2.error: OpenCV(4.1.0) C:\projects\opencv-python\opencv\modules\imgproc\src\color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor'

ret, frame = cv2.VideoCapture('PATH').read() You should put : ''' if ret == False break ''' above: ''' gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY) cv2.imshow('gray', gray) ''' Because when it comes to the...