itkMetricDerivativeBridge.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 itkMetricDerivativeBridge_h
#define itkMetricDerivativeBridge_h

#include <itkObject.h>
#include "itkImageToImageMetricWithConstraint.h"

namespace itk
{

template <class TFixedImage, class TMovingImage> class ImageToImageMetricWithConstraint;

template < typename TFixedImage, typename TMovingImage > 
class ITK_EXPORT MetricDerivativeBridge : 
    public Object
{
public:

  typedef MetricDerivativeBridge                          Self;
  typedef Object                                          Superclass;
  typedef SmartPointer<Self>                              Pointer;
  typedef SmartPointer<const Self>                        ConstPointer;

  itkTypeMacro(MetricDerivativeBridge, Object);

  typedef ImageToImageMetricWithConstraint<TFixedImage, TMovingImage> SimilarityMeasureType;
  typedef typename SimilarityMeasureType::ConstPointer                SimilarityMeasurePointer;
  typedef typename SimilarityMeasureType::DerivativeType              DerivativeType;
  typedef typename SimilarityMeasureType::TransformParametersType     ParametersType;

  itkStaticConstMacro(Dimension, unsigned int, TFixedImage::ImageDimension);

  virtual void GetCostFunctionDerivative(SimilarityMeasurePointer similarityMeasure, 
                     const ParametersType &parameters,
                     DerivativeType &derivative) const = 0;

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

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

} // end namespace itk

#endif