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 ProjectionImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  typedef ProjectionImageFilter                           Self;
  typedef ImageToImageFilter< TInputImage, TOutputImage > Superclass;
  typedef SmartPointer< Self >                            Pointer;
  typedef SmartPointer< const Self >                      ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(ProjectionImageFilter, ImageToImageFilter);

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

  typedef TAccumulator AccumulatorType;

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

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

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

protected:
  ProjectionImageFilter();
  virtual ~ProjectionImageFilter() {}
  void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;

  virtual void GenerateOutputInformation() ITK_OVERRIDE;

  virtual void GenerateInputRequestedRegion() ITK_OVERRIDE;

  virtual void ThreadedGenerateData(
    const OutputImageRegionType & outputRegionForThread, ThreadIdType threadId) ITK_OVERRIDE;

  virtual AccumulatorType NewAccumulator( SizeValueType ) const;

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

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

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

#endif