Filtering in the Fourier transform domain

funconv(M, f) Convolution of matrix M with frequency domain function f.

funcdeconv(M, f, e) Deconvolution of matrix M with frequency domain function f and error e.

matconv(M, N) Convolution of matrix M with frequency domain mask N.

matdeconv(M, N, e) Deconvolution of matrix M with frequency domain mask N and error e.

Arguments: