itkSubtract2DImageFromVolumeSliceFilter.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 itkSubtract2DImageFromVolumeSliceFilter_h
#define itkSubtract2DImageFromVolumeSliceFilter_h

#include <itkInPlaceImageFilter.h>

namespace itk
{
  
template <class IntensityType = float>
class ITK_EXPORT Subtract2DImageFromVolumeSliceFilter : 
    public ImageToImageFilter< Image<IntensityType, 2>, Image<IntensityType, 2> > 
{
public:

  typedef Subtract2DImageFromVolumeSliceFilter          Self;
  typedef ImageToImageFilter< Image< IntensityType, 2>, Image<IntensityType, 2> > Superclass;
  typedef SmartPointer<Self>                            Pointer;
  typedef SmartPointer<const Self>                      ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(Subtract2DImageFromVolumeSliceFilter, ImageToImageFilter);

  typedef Image<IntensityType, 2>                  InputImageType;
  typedef typename    InputImageType::Pointer      InputImagePointer;
  typedef typename    InputImageType::RegionType   InputImageRegionType;
  typedef typename    InputImageType::PixelType    InputImagePixelType;
  typedef typename    InputImageType::SizeType     InputImageSizeType;
  typedef typename    InputImageType::SpacingType  InputImageSpacingType;
  typedef typename    InputImageType::PointType    InputImagePointType;
  typedef typename    InputImageType::IndexType    InputImageIndexType;

  typedef Image<IntensityType, 3>                             InputProjectionVolumeType;
  typedef typename    InputProjectionVolumeType::Pointer      InputProjectionVolumePointer;
  typedef typename    InputProjectionVolumeType::RegionType   InputProjectionVolumeRegionType;
  typedef typename    InputProjectionVolumeType::PixelType    InputProjectionVolumePixelType;
  typedef typename    InputProjectionVolumeType::SizeType     InputProjectionVolumeSizeType;
  typedef typename    InputProjectionVolumeType::SpacingType  InputProjectionVolumeSpacingType;
  typedef typename    InputProjectionVolumeType::PointType    InputProjectionVolumePointType;
  typedef typename    InputProjectionVolumeType::IndexType    InputProjectionVolumeIndexType;

  typedef Image<IntensityType, 2>                             OutputSubtractedImageType;
  typedef typename     OutputSubtractedImageType::Pointer     OutputSubtractedImagePointer;
  typedef typename     OutputSubtractedImageType::RegionType  OutputSubtractedImageRegionType;
  typedef typename     OutputSubtractedImageType::PixelType   OutputSubtractedImagePixelType;
  typedef typename     OutputSubtractedImageType::SizeType    OutputSubtractedImageSizeType;
  typedef typename     OutputSubtractedImageType::SpacingType OutputSubtractedImageSpacingType;
  typedef typename     OutputSubtractedImageType::PointType   OutputSubtractedImagePointType;

  void SetInputImage2D( const InputImageType *im2D);

  void SetInputVolume3D( const InputProjectionVolumeType * im3D);

  itkStaticConstMacro(InputImageDimension, unsigned int,
                      InputImageType::ImageDimension);
  itkStaticConstMacro(OutputImageDimension, unsigned int,
                      OutputSubtractedImageType::ImageDimension);

  itkSetMacro( SliceNumber, unsigned int);


protected:

  Subtract2DImageFromVolumeSliceFilter();
  virtual ~Subtract2DImageFromVolumeSliceFilter() {};

  void PrintSelf(std::ostream& os, Indent indent) const;

  virtual void BeforeThreadedGenerateData(void);
  
  virtual void AfterThreadedGenerateData(void);

  void GenerateData(void);

  void ThreadedGenerateData(const OutputSubtractedImageRegionType &outputRegionForThread,
                            ThreadIdType threadId );

  unsigned int m_SliceNumber;

private:
  Subtract2DImageFromVolumeSliceFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented
  
};

} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkSubtract2DImageFromVolumeSliceFilter.txx"
#endif

#endif