My image is of size 107x149. And my filter kernel is of size 75x75. What is the best way(in terms of speed) to convolve the image with kernel? Note : filters are non-separable.
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Generic cv::filter2D is good enough for such case. It uses DFT-based algorithm for sufficiently large kernels.
Andrey Kamaev
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used filter2D but it's still slow. Any other ideas?(Apart from GPU, CUDA programming?) – Ravi Apr 08 '13 at 21:08
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I am using ARM processor. I think it doesn't support IPP. – Ravi Apr 09 '13 at 19:46