itkDiscreteLevelSetImage.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 itkDiscreteLevelSetImage_h
#define itkDiscreteLevelSetImage_h
 
#include "itkLevelSetImage.h"
 
namespace itk
{
template <typename TOutput, unsigned int VDimension>
class ITK_TEMPLATE_EXPORT DiscreteLevelSetImage : public LevelSetImage<Index<VDimension>, VDimension, TOutput>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(DiscreteLevelSetImage);
 
  using IndexType = Index<VDimension>;
 
  using Self = DiscreteLevelSetImage;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
  using Superclass = LevelSetImage<IndexType, VDimension, TOutput>;

  itkOverrideGetNameOfClassMacro(DiscreteLevelSetImage);
 
  static constexpr unsigned int Dimension = Superclass::Dimension;
 
  using typename Superclass::InputType;
  using typename Superclass::OutputType;
  using typename Superclass::OutputRealType;
  using typename Superclass::GradientType;
  using typename Superclass::HessianType;
  using typename Superclass::LevelSetDataType;

  OutputType
  Evaluate(const InputType & inputIndex) const override = 0;

  GradientType
  EvaluateGradient(const InputType & inputIndex) const override;

  HessianType
  EvaluateHessian(const InputType & inputIndex) const override;

  OutputRealType
  EvaluateLaplacian(const InputType & inputIndex) const override;

  OutputRealType
  EvaluateMeanCurvature(const InputType & inputIndex) const override;
 
  virtual GradientType
  EvaluateForwardGradient(const InputType & inputIndex) const;
 
  virtual GradientType
  EvaluateBackwardGradient(const InputType & inputIndex) const;

  void
  Evaluate(const InputType & inputIndex, LevelSetDataType & data) const override;

  void
  EvaluateGradient(const InputType & inputIndex, LevelSetDataType & data) const override;

  void
  EvaluateHessian(const InputType & inputIndex, LevelSetDataType & data) const override;

  void
  EvaluateMeanCurvature(const InputType & inputIndex, LevelSetDataType & data) const override;

  void
  EvaluateLaplacian(const InputType & inputIndex, LevelSetDataType & data) const override;

  void
  EvaluateForwardGradient(const InputType & inputIndex, LevelSetDataType & data) const override;

  void
  EvaluateBackwardGradient(const InputType & inputIndex, LevelSetDataType & data) const override;
 
protected:
  DiscreteLevelSetImage() = default;
 
  ~DiscreteLevelSetImage() override = default;

  void
  Initialize() override;

  void
  CopyInformation(const DataObject * data) override;

  void
  Graft(const DataObject * data) override;
 
private:
};
} // namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkDiscreteLevelSetImage.hxx"
#endif
 
#endif // itkDiscreteLevelSetImage_h