itkMeanReciprocalSquareDifferencePointSetToImageMetric.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
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
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 *  distributed under the License is distributed on an "AS IS" BASIS,
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 *  See the License for the specific language governing permissions and
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#ifndef itkMeanReciprocalSquareDifferencePointSetToImageMetric_h
#define itkMeanReciprocalSquareDifferencePointSetToImageMetric_h

#include "itkPointSetToImageMetric.h"
#include "itkCovariantVector.h"
#include "itkPoint.h"

namespace itk
{
template< typename TFixedPointSet, typename TMovingImage >
class ITK_TEMPLATE_EXPORT MeanReciprocalSquareDifferencePointSetToImageMetric:
  public PointSetToImageMetric< TFixedPointSet, TMovingImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(MeanReciprocalSquareDifferencePointSetToImageMetric);

  using Self = MeanReciprocalSquareDifferencePointSetToImageMetric;
  using Superclass = PointSetToImageMetric< TFixedPointSet, TMovingImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  itkNewMacro(Self);

  itkTypeMacro(MeanReciprocalSquareDifferencePointSetToImageMetric, Object);

  using RealType = typename Superclass::RealType;
  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 GradientPixelType = typename Superclass::GradientPixelType;

  using MeasureType = typename Superclass::MeasureType;
  using DerivativeType = typename Superclass::DerivativeType;
  using FixedPointSetType = typename Superclass::FixedPointSetType;
  using MovingImageType = typename Superclass::MovingImageType;
  using FixedPointSetConstPointer = typename Superclass::FixedPointSetConstPointer;
  using MovingImageConstPointer = typename Superclass::MovingImageConstPointer;

  using PointIterator = typename Superclass::PointIterator;
  using PointDataIterator = typename Superclass::PointDataIterator;

  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;

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

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

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

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

#endif