David Ascher <da@skivs.ski.org> writes: > Problem: doing 2D convolutions with non-square and different shape arrays > is (from what I've read) not doable using FFT multiplication. It depends on what kind of convolution you want. Gaussian kernel factorizes into two components and can be implemented by FFT. -- Janne Sinkkonen <janne@iki.fi> <URL: http://www.iki.fi/~janne/ >