error: (-215:Assertion failed) size.width> 0 & & size.height> 0 in function ‘CV ::imshow’

Solution:
change the name and path of the picture to English or number

window name should also be set to English or number, otherwise it will show the code
from the code of https://www.zhihu.com/question/67157462/answer/251754530
Chinese path can be read normal, but still have window name Chinese garbled.

update: fix window name mess
change system Settings, check the system default code under the CMD window to enter CHCP. If the system encoding is UTF-8, output 65001, modify the language setting to UTF-8, and operate as follows:

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