itkNormalizedCorrelationImageToImageMetric.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkNormalizedCorrelationImageToImageMetric.h,v $
  Language:  C++
  Date:      $Date: 2003/09/10 14:28:36 $
  Version:   $Revision: 1.23 $

  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 __itkNormalizedCorrelationImageToImageMetric_h
#define __itkNormalizedCorrelationImageToImageMetric_h

#include "itkImageToImageMetric.h"
#include "itkCovariantVector.h"
#include "itkPoint.h"


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

  typedef NormalizedCorrelationImageToImageMetric    Self;
  typedef ImageToImageMetric<TFixedImage, TMovingImage >  Superclass;

  typedef SmartPointer<Self>         Pointer;
  typedef SmartPointer<const Self>   ConstPointer;

  itkNewMacro(Self);
 
  itkTypeMacro(NormalizedCorrelationImageToImageMetric, 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::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;

protected:
  NormalizedCorrelationImageToImageMetric();
  virtual ~NormalizedCorrelationImageToImageMetric() {};

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

};

} // end namespace itk

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

#endif

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