itkPDEDeformableRegistrationFunction.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkPDEDeformableRegistrationFunction.h,v $
  Language:  C++
  Date:      $Date: 2003/09/10 14:28:37 $
  Version:   $Revision: 1.15 $

  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 _itkPDEDeformableRegistrationFunction_h_
#define _itkPDEDeformableRegistrationFunction_h_

#include "itkFiniteDifferenceFunction.h"

namespace itk {

template<class TFixedImage, class TMovingImage, class TDeformationField>
class ITK_EXPORT PDEDeformableRegistrationFunction : 
  public FiniteDifferenceFunction<TDeformationField>
{
public:
  typedef PDEDeformableRegistrationFunction    Self;
  typedef FiniteDifferenceFunction<TDeformationField>    Superclass;
  typedef SmartPointer<Self> Pointer;
  typedef SmartPointer<const Self> ConstPointer;

  itkTypeMacro( PDEDeformableRegistrationFunction, 
    FiniteDifferenceFunction );

  typedef TMovingImage   MovingImageType;
  typedef typename MovingImageType::ConstPointer  MovingImagePointer;

  typedef TFixedImage    FixedImageType;
  typedef typename FixedImageType::ConstPointer  FixedImagePointer;
  
  typedef TDeformationField    DeformationFieldType;
  typedef typename DeformationFieldType::Pointer   
    DeformationFieldTypePointer;

  void SetMovingImage( const MovingImageType * ptr )
    { m_MovingImage = ptr; }

  MovingImageType * GetMovingImage(void)
    { return m_MovingImage; }

  void SetFixedImage( const FixedImageType * ptr )
    { m_FixedImage = ptr; }

  FixedImageType * GetFixedImage(void)
    { return m_FixedImage; }

  void SetDeformationField(  DeformationFieldTypePointer ptr )
    { m_DeformationField = ptr; }

  DeformationFieldTypePointer GetDeformationField(void)
    { return m_DeformationField; }


  void SetEnergy( double e) { m_Energy=e;}
  double GetEnergy( ) { return m_Energy;}
  void SetGradientStep( double e) { m_GradientStep = e;}
  double GetGradientStep( ) { return m_GradientStep ;}
  void SetNormalizeGradient( bool e) { m_NormalizeGradient=e;}
  bool GetNormalizeGradient( ) { return m_NormalizeGradient;}

protected:
  PDEDeformableRegistrationFunction()
    {
      m_MovingImage = NULL;
      m_FixedImage = NULL;
      m_DeformationField = NULL;
      m_Energy = 0.0;
      m_NormalizeGradient = true;
      m_GradientStep = 1.0;
    }

  ~PDEDeformableRegistrationFunction() {}

  void PrintSelf(std::ostream& os, Indent indent) const
  {
    Superclass::PrintSelf(os, indent);
    os << indent << "MovingImage: ";
    os << m_MovingImage.GetPointer() << std::endl;
    os << indent << "FixedImage: ";
    os << m_FixedImage.GetPointer() << std::endl;

  };

  MovingImagePointer                m_MovingImage;
  
  FixedImagePointer                   m_FixedImage;

  DeformationFieldTypePointer                   m_DeformationField;

  mutable double                  m_Energy;
  bool                            m_NormalizeGradient;
  mutable double                          m_GradientStep;
private:
  PDEDeformableRegistrationFunction(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented
  
};


} // end namespace itk


#endif

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