Answers for "cv2.error: opencv(4.5.3) /tmp/pip-wheel-xjhn4aom/opencv-contrib-python_db9bf2c2b8dd41b592a48d20aac72627/opencv/modules/objdetect/src/cascadedetect.cpp:1689: error: (-215:assertion failed) !empty() in function 'detectmultiscale'"

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cv2.error: OpenCV(4.5.3) C:UsersrunneradminAppDataLocalTemppip-req-build-q3d_8t8eopencvmodulesimgprocsrccolor.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor'

Try Giving Full Path. 
This seems to be the path issue in windows. 
I changed it to a full path like this and it worked.

filename = "D:SandboxGithubopencv-projectResourcesPhotoscats.jpg"

Posted by: Guest on July-29-2021

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Answers for "cv2.error: opencv(4.5.3) /tmp/pip-wheel-xjhn4aom/opencv-contrib-python_db9bf2c2b8dd41b592a48d20aac72627/opencv/modules/objdetect/src/cascadedetect.cpp:1689: error: (-215:assertion failed) !empty() in function 'detectmultiscale'"

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