itkProjectionImageFilter.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkProjectionImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2009-01-28 18:14:36 $
  Version:   $Revision: 1.2 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#ifndef __itkProjectionImageFilter_h
#define __itkProjectionImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkConceptChecking.h"

namespace itk
{
  
template <class TInputImage, class TOutputImage, class TAccumulator>
class ITK_EXPORT 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

  itkConceptMacro(ImageDimensionCheck,
    (Concept::SameDimensionOrMinusOne<
       itkGetStaticConstMacro(InputImageDimension),
       itkGetStaticConstMacro(OutputImageDimension)>));

#endif


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


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

  virtual void GenerateOutputInformation();

  virtual void GenerateInputRequestedRegion();

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

  virtual AccumulatorType NewAccumulator( unsigned long ) 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.txx"
#endif

#endif