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

[Luis Ibanez]

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
> 
>