itkVnlRealToHalfHermitianForwardFFTImageFilter.h

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 *  Copyright Insight Software Consortium
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 *  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
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 *         http://www.apache.org/licenses/LICENSE-2.0.txt
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 *  See the License for the specific language governing permissions and
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#ifndef itkVnlRealToHalfHermitianForwardFFTImageFilter_h
#define itkVnlRealToHalfHermitianForwardFFTImageFilter_h

#include "itkRealToHalfHermitianForwardFFTImageFilter.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 VnlRealToHalfHermitianForwardFFTImageFilter:
  public RealToHalfHermitianForwardFFTImageFilter< TInputImage, TOutputImage >
{
public:
  typedef TInputImage                            InputImageType;
  typedef typename InputImageType::PixelType     InputPixelType;
  typedef typename InputImageType::SizeType      InputSizeType;
  typedef typename InputImageType::SizeValueType InputSizeValueType;
  typedef TOutputImage                           OutputImageType;
  typedef typename OutputImageType::PixelType    OutputPixelType;
  typedef typename OutputImageType::SizeType     OutputSizeType;

  typedef VnlRealToHalfHermitianForwardFFTImageFilter                           Self;
  typedef RealToHalfHermitianForwardFFTImageFilter<  TInputImage, TOutputImage> Superclass;
  typedef SmartPointer< Self >                                                Pointer;
  typedef SmartPointer< const Self >                                          ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(VnlRealToHalfHermitianForwardFFTImageFilter,
               RealToHalfHermitianForwardFFTImageFilter);

  itkStaticConstMacro(ImageDimension, unsigned int,
                      TOutputImage::ImageDimension);
  itkStaticConstMacro(InputImageDimension, unsigned int,
                      TInputImage::ImageDimension);
  itkStaticConstMacro(OutputImageDimension, unsigned int,
                      TOutputImage::ImageDimension);

  SizeValueType GetSizeGreatestPrimeFactor() const ITK_OVERRIDE;

#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro( ImageDimensionsMatchCheck,
                   ( Concept::SameDimension< InputImageDimension, OutputImageDimension > ) );
  // End concept checking
#endif

protected:
  VnlRealToHalfHermitianForwardFFTImageFilter() {}
  ~VnlRealToHalfHermitianForwardFFTImageFilter() {}

  void GenerateData() ITK_OVERRIDE;

private:
  VnlRealToHalfHermitianForwardFFTImageFilter(const Self &); // purposely not implemented
  void operator=(const Self &);           // purposely not implemented

  typedef vnl_vector< vcl_complex< InputPixelType > > SignalVectorType;
};
}

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkVnlRealToHalfHermitianForwardFFTImageFilter.hxx"
#endif

#endif