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I have a problem with found good FFT library, for simple use.

I have 2D array which need passed via FFT.

I'm looking for FFT library.

I have 2D array of ints (info about pixels in images) and I need pass FFT on this Array and save.

You have some library for advice?

Someone who take me some advice/tutorial how use this library?

Library FFT

.. or FT

Thaks

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The library of choice for any FFT task is

FFTW

It has C and Fortran interfaces and is therefore be usable in C++ as well.

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