執行代碼’next = cv.cvtColor(frame2, cv.COLOR_BGR2GRAY)'出現報錯
“cv2.error: OpenCV(3.4.3) C:\projects\opencv-python\opencv\modules\imgproc\src\color.cpp:181: error: (-215:Assertion failed) !_src.empty() in function ‘cv::cvtColor’”
需要在(ret, frame2) = cap.read()後添加判斷
‘if ret == False:
break’
來判斷視頻是否讀取結束,否則播放到最後一幀的時候出現問題了
