這個報錯一般是因為你圖像的路徑寫錯了，找不到圖像而導致的。
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Python中使用Opencv報錯 error: (-215:Assertion failed) !_src.empty() in function ‘cv::cvtColor‘
工具配置- error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor'
解決-215:Assertion failed ) !_src.empty() in function 'cv::cvtColor'(java opencv)
cv2.error: OpenCV(4.2.0) ..\modules\imgproc\src\color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor'
解決cv2.error: OpenCV(4.1.1) C:\projects\opencv-python\opencv\modules\imgproc\src\color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor'
Opencv 解決問題 !_src.empty() in function 'cv::cvtColor'
運行報錯error: (-215:Assertion failed) !ssize.empty() in function 'cv::resize'
error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow'
OpenCV Error: Assertion failed (scn == 3 || scn == 4) in cv::cvtColor
解決error: (-215:Assertion failed) VScn::contains(scn) && VDcn::contains(dcn) && VDepth::contains(depth) in function 'cv::CvtHelper的一種可能