Does performance differ between Python or C++ coding of OpenCV?

Question

I aim to start opencv little by little but first I need to decide which API of OpenCV is more useful. I predict that Python implementation is shorter but running time will b

Answer 1

The answer from sdfgeoff is missing the fact that you can reuse arrays in Python. Preallocate them and pass them in, and they will get used. So:

    image = numpy.zeros(shape=(height, width, 3), dtype=numpy.uint8)
    #....
    retval, _ = cv.VideoCapture.read(image)