itkJEImageToImageMetric.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 itkJEImageToImageMetric_h
#define itkJEImageToImageMetric_h

#include "itkHistogramSimilarityMeasure.h"

namespace itk
{
template < class TFixedImage, class TMovingImage > 
class ITK_EXPORT JEImageToImageMetric : 
    public HistogramSimilarityMeasure< TFixedImage, TMovingImage>
{
public:

  typedef JEImageToImageMetric                                            Self;
  typedef HistogramSimilarityMeasure<TFixedImage, TMovingImage >          Superclass;
  typedef SmartPointer<Self>                                              Pointer;
  typedef SmartPointer<const Self>                                        ConstPointer;
  typedef typename Superclass::FixedImageType::PixelType                  FixedImagePixelType;
  typedef typename Superclass::MovingImageType::PixelType                 MovingImagePixelType;  
  typedef typename Superclass::MeasureType                                MeasureType;
  
  itkNewMacro(Self);
 
  itkTypeMacro(JEImageToImageMetric, HistogramSimilarityMeasure);

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

  MeasureType FinalizeCostFunction()
    {
      return this->JointEntropy();
    }

private:
  JEImageToImageMetric(const Self&); // purposefully not implemented
  void operator=(const Self&);       // purposefully not implemented  
};

} // end namespace itk

#endif