Record 2
During the process of capturing the camera, the following error message appears
Solution 1 : Check whether to use the built-in camera or an external camera, and modify the number. If there is only one camera, the number is 0, run, and the camera is retrieved successfully. Correspondingly, change the number to 0, 1... or other
cap=cv2.VideoCapture(0)
Solution 2 :
In case of error
Place the required video or picture path in the path folder where the code is located, and the path name cannot contain Chinese characters.
If the operation ends midway and an error is reported, it may be because the video has finished playing.
Solution 3 : Refer to the original article of CSDN blogger "hongye0v0", original link: https://blog.csdn.net/hongye0v0/article/details/132876083
Uninstall opencv-python and opencv-contrib-python and reinstall opencv-python.
Personal test is effective.
pip uninstall opencv-pythonpip uninstall opencv-contrib-pythonpip install opencv-python -i https://pypi.tuna.tsinghua.edu.cn/simple