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

[Cory Quammen]

Because FFTComplexToComplexImageFilter is defined entirely in a header, you
don't need to recompile ITK.

FFTComplexToComplexImageFilter is in the Review module which means it is
somewhat experimental, so there may be bugs. I don't know if it has been
modified since before ITKv4 came out, so it's entirely possible that there
are bugs.

Could you run your program in a debugger and see where it is segfaulting?

Cory


On Fri, Nov 22, 2013 at 3:09 PM, DVigneault <davis.vigneault at gmail.com>wrote:

> It now compiles without errors, but I get "Segmentation Fault: 11" when
> running the program.
>
> I've been assuming that this module is on since it didn't complain when I
> added the header.  Is this assumption safe?  If not, then to turn the
> Review
> module on, do I rebuild all of ITK?
>
> Here's the updated code:
>
>     typedef itk::FFTComplexToComplexImageFilter< ComplexImageType >
> FFTInverseFilterType;
>     FFTInverseFilterType::Pointer fftInverseFilter =
> FFTInverseFilterType::New();
>     fftInverseFilter->SetInput( maskedShiftFilter->GetOutput() );
>     fftInverseFilter->SetTransformDirection( FFTInverseFilterType::INVERSE
> );
>
>     try
>     {
>         fftInverseFilter->Update();
>         std::cerr << "fftInverseFilter->Update() excecuted successfully."
> <<
> std::endl;
>     }
>     catch( itk::ExceptionObject & excp )
>     {
>         std::cerr << "Error during fftInverseFilter->Update(): " <<
> std::endl;
>         std::cerr << excp << std::endl;
>         return EXIT_FAILURE;
>     }
>
>
>
> --
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