[Insight-users] Is there an Inverse FFT in ITK ? (IFFT)

Luis Ibanez luis.ibanez at kitware.com
Tue Nov 16 16:47:20 EST 2004


Hi Robert,

There is not an explicit Inverse Fourier transform
filter (IFFT) in ITK.

However, note that you can easily get the equivalent
of the Inverser FFT by running a *direct* FFT and then
Flipping the outptut image.

You are probably familiar with the symmetry properies
of the Fourier Transform.


For Flipping the image you can simply use the
FlipImageFilter.

http://www.itk.org/Insight/Doxygen/html/classitk_1_1FlipImageFilter.html



Please let us know if you have further questions,


    Thanks


      Luis


--------------------
Robert Maroon wrote:

> Question: Are there similar functions for the IFFT? A
> search of the 1.8.0 Doxygen turned up nothing...
> 
> Thanks,
> 
> Robert
> 
> 





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