[Numpy-discussion] correlation in fourier domain

Alex Flint alex.flint@gmail....
Fri Jun 24 12:39:05 CDT 2011

I would like to perform 2d correlations between a large matrix A and a bunch
of small matrices B1...Bn. Is there anything built into numpy to help me do
this efficiently in the fourier domain (i.e. DFT of A -> multiplication with
DFT of B1..Bn)?

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