itkMIDASDownSamplingFilter.h

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

  NifTK: A software platform for medical image computing.

  Copyright (c) University College London (UCL). All rights reserved.

  This software is distributed WITHOUT ANY WARRANTY; without even
  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  PURPOSE.

  See LICENSE.txt in the top level directory for details.

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

#ifndef itkMIDASDownSamplingFilter_h
#define itkMIDASDownSamplingFilter_h

#include <itkImageToImageFilter.h>

namespace itk
{

  template <class TInputImage, class TOutputImage>
  class ITK_EXPORT MIDASDownSamplingFilter : public ImageToImageFilter<TInputImage, TOutputImage>
  {
  public:
    typedef MIDASDownSamplingFilter                       Self;
    typedef ImageToImageFilter<TInputImage, TOutputImage> SuperClass;
    typedef SmartPointer<Self>                            Pointer;
    typedef SmartPointer<const Self>                      ConstPointer;

    itkNewMacro(Self);

    typedef typename TInputImage::PixelType PixelType;

    typedef typename TInputImage::IndexType IndexType;

    typedef typename TInputImage::SizeType SizeType;

    itkTypeMacro(MIDASDownSamplingFilter, ImageToImageFilter);

    typedef TInputImage                               InputImageType;
    typedef typename InputImageType::ConstPointer     InputImageConstPointer;
    typedef typename InputImageType::Pointer          InputImagePointer;
    typedef typename InputImageType::SizeType         InputImageSizeType;
    typedef typename InputImageType::IndexType        InputImageIndexType;
    typedef typename InputImageType::RegionType       InputImageRegionType;

    typedef TOutputImage                              OutputImageType;
    typedef typename OutputImageType::Pointer         OutputImagePointer;
    typedef typename OutputImageType::SizeType        OutputImageSizeType;
    typedef typename OutputImageType::IndexType       OutputImageIndexType;
    typedef typename OutputImageType::RegionType      OutputImageRegionType;

    itkSetMacro(DownSamplingFactor, unsigned int);
    itkGetConstMacro(DownSamplingFactor, unsigned int);

    itkSetMacro(InValue, PixelType);
    itkGetConstMacro(InValue, PixelType);

    itkSetMacro(OutValue, PixelType);
    itkGetConstMacro(OutValue, PixelType);

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

    virtual void GenerateData();
    
  private:
    MIDASDownSamplingFilter(const Self&); //purposely not implemented
    void operator=(const Self&); //purposely not implemented

    unsigned int m_DownSamplingFactor;

    PixelType m_InValue;
    PixelType m_OutValue;
  };

}

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkMIDASDownSamplingFilter.txx"
#endif

#endif