[ITK Community] [Insight-users] Obtaining Real Result from Inverse Fourier Transform

[Cory Quammen]

The InverseFFTImageFilters return only real images. You should be able to
use

http://www.itk.org/Doxygen/html/classitk_1_1FFTComplexToComplexImageFilter.html

to obtain a complex inverse image. Note that this class is in Review, so
you will need to enable ITK's Review module in CMake.

Hope that helps,
Cory


On Fri, Nov 22, 2013 at 1:51 PM, DVigneault <davis.vigneault at gmail.com>wrote:

> Thanks for the reply, Brad!
>
> When I change the typedef to:
>
> typedef itk::VnlInverseFFTImageFilter< ComplexImageType, ComplexImageType >
> FFTInverseFilterType;
>
> I get a very long error message during compilation, which starts with:
>
> In file included from
> /Users/Davis/Desktop/ITKExamples/00_Pipeline/04_harp/src/FFT.cxx:18:
> In file included from /usr/local/include/ITK-4.4/itkImage.h:21:
> In file included from /usr/local/include/ITK-4.4/itkImageRegion.h:34:
> In file included from /usr/local/include/ITK-4.4/itkContinuousIndex.h:22:
> In file included from /usr/local/include/ITK-4.4/itkIndex.h:23:
> In file included from /usr/local/include/ITK-4.4/itkMath.h:33:
> /usr/local/include/ITK-4.4/itkConceptChecking.h:394:32: error: invalid
> operands to binary expression
>       ('std::complex<float>' and 'unsigned int')
>       a = static_cast< T3 >( b / c );
>
>
>
> --
> View this message in context:
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> Sent from the ITK Insight Users mailing list archive at Nabble.com.
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