itkInvNormalizedCorrelationImageToImageMetric.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 itkInvNormalizedCorrelationImageToImageMetric_h
#define itkInvNormalizedCorrelationImageToImageMetric_h

#include <itkImageToImageMetric.h>
#include <itkCovariantVector.h>
#include <itkPoint.h>


namespace itk
{
template < class TFixedImage, class TMovingImage > 
class ITK_EXPORT InvNormalizedCorrelationImageToImageMetric : 
    public ImageToImageMetric< TFixedImage, TMovingImage>
{
public:

  typedef InvNormalizedCorrelationImageToImageMetric         Self;
  typedef ImageToImageMetric<TFixedImage, TMovingImage >  Superclass;
  typedef SmartPointer<Self>                              Pointer;
  typedef SmartPointer<const Self>                        ConstPointer;

  itkNewMacro(Self);
 
  itkTypeMacro(InvNormalizedCorrelationImageToImageMetric, Object);

 
  typedef typename Superclass::RealType                 RealType;
  typedef typename Superclass::TransformType            TransformType;
  typedef typename Superclass::TransformPointer         TransformPointer;
  typedef typename Superclass::TransformParametersType  TransformParametersType;
  typedef typename Superclass::TransformJacobianType    TransformJacobianType;
  typedef typename Superclass::GradientPixelType        GradientPixelType;
  typedef typename Superclass::OutputPointType          OutputPointType;
  typedef typename Superclass::InputPointType           InputPointType;

  typedef typename Superclass::MeasureType              MeasureType;
  typedef typename Superclass::DerivativeType           DerivativeType;
  typedef typename Superclass::FixedImageType           FixedImageType;
  typedef typename Superclass::MovingImageType          MovingImageType;
  typedef typename Superclass::FixedImageConstPointer   FixedImageConstPointer;
  typedef typename Superclass::MovingImageConstPointer  MovingImageConstPointer;


  void GetDerivative( const TransformParametersType & parameters,
                      DerivativeType & Derivative ) const;

  MeasureType GetValue( const TransformParametersType & parameters ) const;

  void GetValueAndDerivative( const TransformParametersType & parameters,
                              MeasureType& Value, DerivativeType& Derivative ) const;

  itkSetMacro( SubtractMean, bool );
  itkGetConstReferenceMacro( SubtractMean, bool );
  itkBooleanMacro( SubtractMean );

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

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

  bool    m_SubtractMean;

};

} // end namespace itk

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

#endif