filtering - Quickly filter an image with a bank of Gaussian filters - OpenCV -


i doing oriented gaussian blur on image. however, each pixel has it's own orientation. because of have manual convolution. part of algorithm slow.

is there way can manipulate filter engine in way convolve image different filter @ each point instead of doing multiplication rotated filter , summing each pixel? perhaps not correct approach crossed mind. hope closer speed of traditional gaussian blur instead of being many many times slower.

maybe split image n times n represents possible orientations , parallelize filtering. results of each combined 1 image.

thoughts?


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