itkGeodesicActiveContourLevelSetFunction.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  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
 *
 *         https://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  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
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef itkGeodesicActiveContourLevelSetFunction_h
#define itkGeodesicActiveContourLevelSetFunction_h
 
#include "itkSegmentationLevelSetFunction.h"
 
namespace itk
{
template <typename TImageType, typename TFeatureImageType = TImageType>
class ITK_TEMPLATE_EXPORT GeodesicActiveContourLevelSetFunction
  : public SegmentationLevelSetFunction<TImageType, TFeatureImageType>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(GeodesicActiveContourLevelSetFunction);

  using Self = GeodesicActiveContourLevelSetFunction;
  using Superclass = SegmentationLevelSetFunction<TImageType, TFeatureImageType>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
  using FeatureImageType = TFeatureImageType;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(GeodesicActiveContourLevelSetFunction);

  using typename Superclass::ImageType;
  using typename Superclass::NeighborhoodType;
  using typename Superclass::ScalarValueType;
  using typename Superclass::FeatureScalarType;
  using typename Superclass::RadiusType;
  using typename Superclass::FloatOffsetType;
  using typename Superclass::VectorImageType;
  using typename Superclass::GlobalDataStruct;

  static constexpr unsigned int ImageDimension = Superclass::ImageDimension;

  void
  CalculateSpeedImage() override;

  void
  CalculateAdvectionImage() override;

  ScalarValueType
  CurvatureSpeed(const NeighborhoodType & neighborhood,
                 const FloatOffsetType &  offset,
                 GlobalDataStruct *       gd) const override
  {
    return this->PropagationSpeed(neighborhood, offset, gd);
  }

  void
  SetDerivativeSigma(const double v)
  {
    m_DerivativeSigma = v;
  }
  double
  GetDerivativeSigma()
  {
    return m_DerivativeSigma;
  }

 
  void
  Initialize(const RadiusType & r) override
  {
    Superclass::Initialize(r);
 
    this->SetAdvectionWeight(NumericTraits<ScalarValueType>::OneValue());
    this->SetPropagationWeight(NumericTraits<ScalarValueType>::OneValue());
    this->SetCurvatureWeight(NumericTraits<ScalarValueType>::OneValue());
  }
 
protected:
  GeodesicActiveContourLevelSetFunction()
  {
    this->SetAdvectionWeight(NumericTraits<ScalarValueType>::OneValue());
    this->SetPropagationWeight(NumericTraits<ScalarValueType>::OneValue());
    this->SetCurvatureWeight(NumericTraits<ScalarValueType>::OneValue());
 
    m_DerivativeSigma = 1.0;
  }
 
  ~GeodesicActiveContourLevelSetFunction() override = default;
 
  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
private:
  double m_DerivativeSigma{};
};
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkGeodesicActiveContourLevelSetFunction.hxx"
#endif
 
#endif