itkMeanReciprocalSquareDifferenceImageToImageMetric.h

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 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
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 *         http://www.apache.org/licenses/LICENSE-2.0.txt
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 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
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#ifndef itkMeanReciprocalSquareDifferenceImageToImageMetric_h
#define itkMeanReciprocalSquareDifferenceImageToImageMetric_h

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

namespace itk
{
template< typename TFixedImage, typename TMovingImage >
class ITK_TEMPLATE_EXPORT MeanReciprocalSquareDifferenceImageToImageMetric:
  public ImageToImageMetric< TFixedImage, TMovingImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(MeanReciprocalSquareDifferenceImageToImageMetric);

  using Self = MeanReciprocalSquareDifferenceImageToImageMetric;
  using Superclass = ImageToImageMetric< TFixedImage, TMovingImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  itkNewMacro(Self);

  itkTypeMacro(MeanReciprocalSquareDifferenceImageToImageMetric, ImageToImageMetric);

  using TransformType = typename Superclass::TransformType;
  using TransformPointer = typename Superclass::TransformPointer;
  using TransformParametersType = typename Superclass::TransformParametersType;
  using TransformJacobianType = typename Superclass::TransformJacobianType;
  using InputPointType = typename Superclass::InputPointType;
  using OutputPointType = typename Superclass::OutputPointType;

  using MeasureType = typename Superclass::MeasureType;
  using DerivativeType = typename Superclass::DerivativeType;
  using FixedImageType = typename Superclass::FixedImageType;
  using MovingImageType = typename Superclass::MovingImageType;
  using FixedImageConstPointer = typename Superclass::FixedImageConstPointer;
  using MovingImageConstPointer = typename Superclass::MovingImageConstPointer;

  void GetDerivative(const TransformParametersType & parameters,
                     DerivativeType  & derivative) const override;

  MeasureType GetValue(const TransformParametersType & parameters) const override;

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

  itkGetConstMacro(Lambda, double);
  itkSetMacro(Lambda, double);

  itkGetConstMacro(Delta, double);
  itkSetMacro(Delta, double);

protected:
  MeanReciprocalSquareDifferenceImageToImageMetric();
  ~MeanReciprocalSquareDifferenceImageToImageMetric() override = default;
  void PrintSelf(std::ostream & os, Indent indent) const override;

private:
  double m_Lambda;
  double m_Delta;
};
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkMeanReciprocalSquareDifferenceImageToImageMetric.hxx"
#endif

#endif