medianBlur KxK matrix size
Do anyone knows why medianBlur use a KxK size for the Matrix Kernel while Blur and Gaussian use a MxN matrix as Kernel? May be you @StevenPuttemans know the answer ;)
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Lol I tell to many people to call me by my name =/ nope sorry, I have not a clue. First guess would be implementation details, but I should have a deeper look.
I am guessing that it depends on the nature of the filter. Look here on how OpenCV calculates it median filtering. It needs a center value, which means that you would need odd dimensions for a starter.
Why it doesn't allow for example to use a 5x3 kernel, I yet have to discover.