itkFFTWRealToHalfHermitianForwardFFTImageFilter.h

Go to the documentation of this file.

/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  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
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#include "itkRealToHalfHermitianForwardFFTImageFilter.h"

#ifndef itkFFTWRealToHalfHermitianForwardFFTImageFilter_h
#define itkFFTWRealToHalfHermitianForwardFFTImageFilter_h

#include "itkFFTWCommon.h"

namespace itk
{
template< typename TInputImage, typename TOutputImage=Image< std::complex<typename TInputImage::PixelType>, TInputImage::ImageDimension> >
class ITK_TEMPLATE_EXPORT FFTWRealToHalfHermitianForwardFFTImageFilter:
  public RealToHalfHermitianForwardFFTImageFilter< TInputImage, TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(FFTWRealToHalfHermitianForwardFFTImageFilter);

  using InputImageType = TInputImage;
  using InputPixelType = typename InputImageType::PixelType;
  using InputSizeType = typename InputImageType::SizeType;
  using OutputImageType = TOutputImage;
  using OutputPixelType = typename OutputImageType::PixelType;
  using OutputSizeType = typename OutputImageType::SizeType;

  using Self = FFTWRealToHalfHermitianForwardFFTImageFilter;
  using Superclass = RealToHalfHermitianForwardFFTImageFilter< TInputImage, TOutputImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  using FFTWProxyType = typename fftw::Proxy< InputPixelType >;

  itkNewMacro(Self);

  itkTypeMacro(FFTWRealToHalfHermitianForwardFFTImageFilter,
               RealToHalfHermitianForwardFFTImageFilter);

  static constexpr unsigned int ImageDimension = InputImageType::ImageDimension;

  virtual void SetPlanRigor( const int & value )
  {
#ifndef ITK_USE_CUFFTW
    // Use that method to check the value
    FFTWGlobalConfiguration::GetPlanRigorName( value );
#endif
    if( m_PlanRigor != value )
      {
      m_PlanRigor = value;
      this->Modified();
      }
  }
  itkGetConstReferenceMacro( PlanRigor, int );

  SizeValueType GetSizeGreatestPrimeFactor() const override;

protected:
  FFTWRealToHalfHermitianForwardFFTImageFilter();
  ~FFTWRealToHalfHermitianForwardFFTImageFilter() override {}

  void GenerateData() override;

  void UpdateOutputData(DataObject *output) override;

  void PrintSelf(std::ostream & os, Indent indent) const override;

private:
  bool m_CanUseDestructiveAlgorithm;

  int m_PlanRigor;
};
} // namespace itk

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

#endif //itkFFTWRealToHalfHermitianForwardFFTImageFilter_h