rtkTotalVariationDenoiseSequenceImageFilter.h

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/*=========================================================================
 *
 *  Copyright RTK 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
 *
 *         https://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.
 *
 *=========================================================================*/

#ifndef rtkTotalVariationDenoiseSequenceImageFilter_h
#define rtkTotalVariationDenoiseSequenceImageFilter_h

#include "rtkConstantImageSource.h"

#include <itkExtractImageFilter.h>
#include <itkPasteImageFilter.h>
#include <itkCastImageFilter.h>

#ifdef RTK_USE_CUDA
#  include "rtkCudaTotalVariationDenoisingBPDQImageFilter.h"
#else
#  include "rtkTotalVariationDenoisingBPDQImageFilter.h"
#endif

namespace rtk
{
template <typename TImageSequence>
class ITK_TEMPLATE_EXPORT TotalVariationDenoiseSequenceImageFilter
  : public itk::ImageToImageFilter<TImageSequence, TImageSequence>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(TotalVariationDenoiseSequenceImageFilter);

  using Self = TotalVariationDenoiseSequenceImageFilter;
  using Superclass = itk::ImageToImageFilter<TImageSequence, TImageSequence>;
  using Pointer = itk::SmartPointer<Self>;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(TotalVariationDenoiseSequenceImageFilter);

  itkGetMacro(Gamma, double);
  itkSetMacro(Gamma, double);

  itkGetMacro(NumberOfIterations, int);
  itkSetMacro(NumberOfIterations, int);

  void
  SetDimensionsProcessed(bool * arg);

  using CPUImageSequenceType = typename itk::Image<typename TImageSequence::PixelType, TImageSequence::ImageDimension>;
#ifdef RTK_USE_CUDA
  using ImageType =
    typename std::conditional_t<std::is_same_v<TImageSequence, CPUImageSequenceType>,
                                itk::Image<typename TImageSequence::PixelType, TImageSequence::ImageDimension - 1>,
                                itk::CudaImage<typename TImageSequence::PixelType, TImageSequence::ImageDimension - 1>>;
  using TVDenoisingFilterType = typename std::conditional_t<std::is_same_v<TImageSequence, CPUImageSequenceType>,
                                                            TotalVariationDenoisingBPDQImageFilter<ImageType>,
                                                            CudaTotalVariationDenoisingBPDQImageFilter>;
#else
  using ImageType = itk::Image<typename TImageSequence::PixelType, TImageSequence::ImageDimension - 1>;
  using TVDenoisingFilterType = rtk::TotalVariationDenoisingBPDQImageFilter<ImageType>;
#endif
  using ExtractFilterType = itk::ExtractImageFilter<TImageSequence, ImageType>;
  using PasteFilterType = itk::PasteImageFilter<TImageSequence, TImageSequence>;
  using CastFilterType = itk::CastImageFilter<ImageType, TImageSequence>;
  using ConstantImageSourceType = rtk::ConstantImageSource<TImageSequence>;

protected:
  TotalVariationDenoiseSequenceImageFilter();
  ~TotalVariationDenoiseSequenceImageFilter() override = default;

  void
  GenerateData() override;

  void
  GenerateOutputInformation() override;
  void
  GenerateInputRequestedRegion() override;

  typename TVDenoisingFilterType::Pointer   m_TVDenoisingFilter;
  typename ExtractFilterType::Pointer       m_ExtractFilter;
  typename PasteFilterType::Pointer         m_PasteFilter;
  typename CastFilterType::Pointer          m_CastFilter;
  typename ConstantImageSourceType::Pointer m_ConstantSource;

  typename TImageSequence::RegionType m_ExtractAndPasteRegion;

  double m_Gamma{ 1. };
  int    m_NumberOfIterations{ 1 };
  bool   m_DimensionsProcessed[ImageType::ImageDimension];
};
} // namespace rtk


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

#endif