# Error happened at Release Mode of Forward1DFFTImageFilter

**URL:** https://discourse.itk.org/t/error-happened-at-release-mode-of-forward1dfftimagefilter/7287
**Category:** Uncategorized
**Created:** [October 29, 2024, 8:38pm UTC](https://discourse.itk.org/t/error-happened-at-release-mode-of-forward1dfftimagefilter/7287 "2024-10-29T20:38:05Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![SuperTXUH](https://discourse.itk.org/user_avatar/discourse.itk.org/supertxuh/32/4360_2.png) [@SuperTXUH](https://discourse.itk.org/u/SuperTXUH)
#### Post date: [October 29, 2024, 8:38pm UTC](https://discourse.itk.org/t/error-happened-at-release-mode-of-forward1dfftimagefilter/7287/1 "2024-10-29T20:38:05Z")

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I have codes below which is running correctly under Debugmode

```auto
using PixelType = float;
constexpr unsigned int Dimension = 3;
using ImageType = itk::Image<PixelType, Dimension>;
using ComplexImageType = itk::Image<complex<float>, Dimension>;
ImageType::Pointer itkImage = dynamic_cast<ImageType*>(imageIn.GetITKBase());
using FFTFilterType = itk::Forward1DFFTImageFilter<ImageType, ComplexImageType>;
FFTFilterType::Pointer fftFilter = FFTFilterType::New();

```

However, I got error of  
“Unhandled exception at 0x00007FFA955BB699 in testOpenImage.exe: Microsoft C++ exception: itk::ExceptionObject at memory location 0x000000643432F6F8.”  
when running under Release mode at:

```auto
FFTFilterType::Pointer fftFilter = FFTFilterType::New();

```

Can anyone advise?

Thanks,

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<div class="post-metadata">

### Author: ![dzenanz](https://discourse.itk.org/user_avatar/discourse.itk.org/dzenanz/32/1093_2.png) [@dzenanz](https://discourse.itk.org/u/dzenanz)
#### Post date: [October 30, 2024, 1:38pm UTC](https://discourse.itk.org/t/error-happened-at-release-mode-of-forward1dfftimagefilter/7287/2 "2024-10-30T13:38:02Z")

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`Forward1DFFTImageFilter` is a base class, you should not use it but one of its descendents: `FFTWForwardFFTImageFilter` or `VnlForwardFFTImageFilter`.

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<div class="post-metadata">

### Author: ![SuperTXUH](https://discourse.itk.org/user_avatar/discourse.itk.org/supertxuh/32/4360_2.png) [@SuperTXUH](https://discourse.itk.org/u/SuperTXUH)
#### Post date: [October 30, 2024, 4:22pm UTC](https://discourse.itk.org/t/error-happened-at-release-mode-of-forward1dfftimagefilter/7287/3 "2024-10-30T16:22:51Z")

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Geat! thanks for pointing this out!