Opencv Min Max Filter. Picks the largest pixel value in a window with the given size. I want to find max and min of rgb values of a pixel of a input mat and i think opencv has a built in function cv reduce to do that.
You use cv getstructuringelement doc here. Pil imagefilter minfilter method creates a max filter. Check out for more.
But if you compute derivatives of an 8 bit image store the results in a 16 bit image and wish to preserve all the fractional bits you may want to set normalize false.
The function is performing as required but it takes approximately 1600ms to process a single image of resolution 720 x 576 with blocksize of 15. M max r g b if r m. But if you compute derivatives of an 8 bit image store the results in a 16 bit image and wish to preserve all the fractional bits you may want to set normalize false. Average filter is boxfilter.
