itkVnlRealToHalfHermitianForwardFFTImageFilter.h

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 *  Copyright NumFOCUS
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
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 *  distributed under the License is distributed on an "AS IS" BASIS,
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 *  See the License for the specific language governing permissions and
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#include "itkRealToHalfHermitianForwardFFTImageFilter.h"
 
#ifndef itkVnlRealToHalfHermitianForwardFFTImageFilter_h
#  define itkVnlRealToHalfHermitianForwardFFTImageFilter_h
 
#  include "itkVnlFFTCommon.h"
#  include "vnl/algo/vnl_fft_base.h"
 
namespace itk
{
template <typename TInputImage,
          typename TOutputImage = Image<std::complex<typename TInputImage::PixelType>, TInputImage::ImageDimension>>
class ITK_TEMPLATE_EXPORT VnlRealToHalfHermitianForwardFFTImageFilter
  : public RealToHalfHermitianForwardFFTImageFilter<TInputImage, TOutputImage>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(VnlRealToHalfHermitianForwardFFTImageFilter);
 
  using InputImageType = TInputImage;
  using InputPixelType = typename InputImageType::PixelType;
  using InputSizeType = typename InputImageType::SizeType;
  using InputSizeValueType = typename InputImageType::SizeValueType;
  using OutputImageType = TOutputImage;
  using OutputPixelType = typename OutputImageType::PixelType;
  using OutputSizeType = typename OutputImageType::SizeType;
 
  using Self = VnlRealToHalfHermitianForwardFFTImageFilter;
  using Superclass = RealToHalfHermitianForwardFFTImageFilter<TInputImage, TOutputImage>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
 
  itkNewMacro(Self);
 
  itkTypeMacro(VnlRealToHalfHermitianForwardFFTImageFilter, RealToHalfHermitianForwardFFTImageFilter);
 
  static constexpr unsigned int ImageDimension = TOutputImage::ImageDimension;
  static constexpr unsigned int InputImageDimension = TInputImage::ImageDimension;
  static constexpr unsigned int OutputImageDimension = TOutputImage::ImageDimension;
 
  SizeValueType
  GetSizeGreatestPrimeFactor() const override;
 
#  ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro(ImageDimensionsMatchCheck, (Concept::SameDimension<InputImageDimension, OutputImageDimension>));
  // End concept checking
#  endif
 
protected:
  VnlRealToHalfHermitianForwardFFTImageFilter() = default;
  ~VnlRealToHalfHermitianForwardFFTImageFilter() override = default;
 
  void
  GenerateData() override;
 
private:
  using SignalVectorType = vnl_vector<std::complex<InputPixelType>>;
};
} // namespace itk
 
#  ifndef ITK_MANUAL_INSTANTIATION
#    include "itkVnlRealToHalfHermitianForwardFFTImageFilter.hxx"
#  endif
 
#endif