itkRegistrationParameterScalesFromJacobian.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.
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 *         http://www.apache.org/licenses/LICENSE-2.0.txt
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 *  See the License for the specific language governing permissions and
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#ifndef itkRegistrationParameterScalesFromJacobian_h
#define itkRegistrationParameterScalesFromJacobian_h

#include "itkRegistrationParameterScalesEstimator.h"

namespace itk
{

template < typename TMetric >
class ITK_TEMPLATE_EXPORT RegistrationParameterScalesFromJacobian :
  public RegistrationParameterScalesEstimator< TMetric >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(RegistrationParameterScalesFromJacobian);

  using Self = RegistrationParameterScalesFromJacobian;
  using Superclass = RegistrationParameterScalesEstimator< TMetric >;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkNewMacro( Self );

  itkTypeMacro( RegistrationParameterScalesFromJacobian, RegistrationParameterScalesEstimator );

  using ScalesType = typename Superclass::ScalesType;

  using ParametersType = typename Superclass::ParametersType;

  using FloatType = typename Superclass::FloatType;

  using VirtualPointType = typename Superclass::VirtualPointType;
  using VirtualIndexType = typename Superclass::VirtualIndexType;
  using MovingTransformType = typename Superclass::MovingTransformType;
  using FixedTransformType = typename Superclass::FixedTransformType;
  using JacobianType = typename Superclass::JacobianType;
  using VirtualImageConstPointer = typename Superclass::VirtualImageConstPointer;

  void EstimateScales(ScalesType &scales) override;

  FloatType EstimateStepScale(const ParametersType &step) override;

  void EstimateLocalStepScales(const ParametersType &step,
    ScalesType &localStepScales) override;

protected:
  RegistrationParameterScalesFromJacobian() = default;
  ~RegistrationParameterScalesFromJacobian() override = default;

  void PrintSelf(std::ostream & os, Indent indent) const override;

  void ComputeSampleStepScales(const ParametersType &step, ScalesType &sampleScales);
}; //class RegistrationParameterScalesFromJacobian


}  // namespace itk


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

#endif /* itkRegistrationParameterScalesFromJacobian_h */