itkProjectionImageFilter.h

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/*=========================================================================
 *
 *  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.
 *
 *=========================================================================*/
#ifndef itkProjectionImageFilter_h
#define itkProjectionImageFilter_h

#include "itkImageToImageFilter.h"

namespace itk
{
template< typename TInputImage, typename TOutputImage, typename TAccumulator >
class ITK_TEMPLATE_EXPORT ProjectionImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(ProjectionImageFilter);

  using Self = ProjectionImageFilter;
  using Superclass = ImageToImageFilter< TInputImage, TOutputImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  itkNewMacro(Self);

  itkTypeMacro(ProjectionImageFilter, ImageToImageFilter);

  using InputImageType = TInputImage;
  using InputImagePointer = typename    InputImageType::Pointer;
  using InputImageRegionType = typename    InputImageType::RegionType;
  using InputImagePixelType = typename    InputImageType::PixelType;
  using OutputImageType = TOutputImage;
  using OutputImagePointer = typename     OutputImageType::Pointer;
  using OutputImageRegionType = typename     OutputImageType::RegionType;
  using OutputImagePixelType = typename     OutputImageType::PixelType;

  using AccumulatorType = TAccumulator;

  static constexpr unsigned int InputImageDimension = TInputImage::ImageDimension;
  static constexpr unsigned int OutputImageDimension = TOutputImage::ImageDimension;

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

  itkSetMacro(ProjectionDimension, unsigned int);
  itkGetConstReferenceMacro(ProjectionDimension, unsigned int);

protected:
  ProjectionImageFilter();
  ~ProjectionImageFilter() override = default;
  void PrintSelf(std::ostream & os, Indent indent) const override;

  void GenerateOutputInformation() override;

  void GenerateInputRequestedRegion() override;

  void DynamicThreadedGenerateData(const OutputImageRegionType & outputRegionForThread) override;


  virtual AccumulatorType NewAccumulator( SizeValueType ) const;

private:
  unsigned int m_ProjectionDimension;
};
} // end namespace itk

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

#endif