itkIterativeInverseDeformationFieldImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkIterativeInverseDeformationFieldImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2009-04-25 12:27:27 $
  Version:   $Revision: 1.8 $

  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 __itkIterativeInverseDeformationFieldImageFilter_h
#define __itkIterativeInverseDeformationFieldImageFilter_h


#include "itkImageToImageFilter.h"

#include "itkWarpVectorImageFilter.h"
#include "itkVectorLinearInterpolateImageFunction.h"
#include "itkImageRegionIterator.h"
#include "itkTimeProbe.h"

namespace itk
{
 
template < class TInputImage, class TOutputImage >
class ITK_EXPORT IterativeInverseDeformationFieldImageFilter :
    public ImageToImageFilter<TInputImage,TOutputImage> 
{
public:
  typedef IterativeInverseDeformationFieldImageFilter   Self;
  typedef ImageToImageFilter<TInputImage,TOutputImage>  Superclass;
  typedef SmartPointer<Self>                            Pointer;
  typedef SmartPointer<const Self>                      ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(IterativeInverseDeformationFieldImageFilter, ImageToImageFilter);

  typedef TInputImage                              InputImageType;
  typedef typename InputImageType::ConstPointer    InputImageConstPointer;
  typedef typename InputImageType::Pointer         InputImagePointer;
  typedef typename InputImageType::PointType       InputImagePointType; 
  typedef typename InputImageType::RegionType      InputImageRegionType; 
  typedef typename InputImageType::SpacingType     InputImageSpacingType; 
  typedef TOutputImage                             OutputImageType;
  typedef typename OutputImageType::Pointer        OutputImagePointer;
  typedef typename OutputImageType::PixelType      OutputImagePixelType;
  typedef typename OutputImageType::PointType      OutputImagePointType;
  typedef typename OutputImageType::IndexType      OutputImageIndexType;
  typedef typename OutputImagePixelType::ValueType OutputImageValueType;

  typedef TimeProbe TimeType;
  
  typedef ImageRegionConstIterator<InputImageType> InputConstIterator;
  typedef ImageRegionIterator<InputImageType>      InputIterator;
  typedef ImageRegionIterator<OutputImageType>     OutputIterator;

  typedef WarpVectorImageFilter<TOutputImage,TInputImage,TOutputImage> VectorWarperType;

  typedef VectorLinearInterpolateImageFunction<TInputImage,double> FieldInterpolatorType;
  typedef typename FieldInterpolatorType::Pointer                  FieldInterpolatorPointer;
  typedef typename FieldInterpolatorType::OutputType               FieldInterpolatorOutputType;

  itkSetMacro(NumberOfIterations, unsigned int);
  itkGetConstMacro(NumberOfIterations, unsigned int);
  
  // If the error (in mm) between forward and backward mapping is smaller than the StopValue,
  // the algorithm stops.
  // This value can be used to speed up the calculation.
  itkSetMacro(StopValue, double);
  itkGetConstMacro(StopValue, double);

  char* GetReport() {return this->m_Report;}

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro(OutputHasNumericTraitsCheck,
                  (Concept::HasNumericTraits<OutputImageValueType>));

#endif

protected:
  IterativeInverseDeformationFieldImageFilter();
  ~IterativeInverseDeformationFieldImageFilter() {}

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

  void GenerateData( );

  unsigned int m_NumberOfIterations;
  double       m_StopValue;
  double       m_Time;

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

} // end namespace itk

#include "itkIterativeInverseDeformationFieldImageFilter.txx"

#endif

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