[Insight-users] FFT

[Renaud Isabelle]

Hi Remi, 
 
Sorry to bother you. I see your posted email to insight-users list about how to compute FFT and delete some frequencies. 
 
This is exactly what I have to do now. I have to compute FFT of each lign of my 2D image and then, delete negative frequencies. But I don't know how to do it. Can you advice me? I'm really lost.
 
Thanks for help,
 
Isabelle
 
remi.charrier at cpe.fr 
Wed Apr 13 17:39:34 EDT 2005 

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hi all, I try to use the itk FFT and its inverse to delete some frequencies in animagebut the itk filters seem to not work.  To know what is not working, I tried to apply the FFT to my image and justafter I apply the FFT inverse to the result. It should give me the same imagethan the initial one, but it does not.I am using#include "itkVnlFFTRealToComplexConjugateImageFilter.h"and#include "itkVnlFFTComplexConjugateToRealImageFilter.h" Does someone know why it is not working or what I should do to make it work?Thanksremi charrier


		
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