How to convert numpy matrix to OpenCV image [python] - Stack Overflow
GitHub - TracelessLe/cv2_gen_python_bindings: Use OpenCV pybind tools (cv2.cpp & gen2.py ...) to generate a python binding use OpenCV Mat as input parameters.
cv2.error: OpenCV(4.1.0) C:\projects\opencv-python\opencv\modules\imgproc\src\color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor' · Issue #933 · ageitgey/face_recognition · GitHub
Getting Started with Python OpenCV - GeeksforGeeks
python - how to keep Several parts of the matrix and zero the rest? - Stack Overflow