# Fft of Matrix type doesnt work?

**URL:** <https://discourse.julialang.org/t/fft-of-matrix-type-doesnt-work/62902>\
**Category:** New to Julia\
**Tags:** images, fftw\
**Created:** [June 14, 2021, 6:27pm UTC](https://discourse.julialang.org/t/fft-of-matrix-type-doesnt-work/62902 "2021-06-14T18:27:02Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![rafael.guerra](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/rafael.guerra/32/216610_2.png) [@rafael.guerra](https://discourse.julialang.org/u/rafael.guerra)\
**Post date:** [June 14, 2021, 7:14pm UTC](https://discourse.julialang.org/t/fft-of-matrix-type-doesnt-work/62902/2 "2021-06-14T19:14:42Z")

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Why using `AbstractFFT` and not just `FFTW`?  
See this [post](https://discourse.julialang.org/t/i-succeeded-to-2d-fft-of-image-but/22404/2) for further leads.

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