itkAnisotropicDiffusionImageFilter.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
 *
 *  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 itkAnisotropicDiffusionImageFilter_h
#define itkAnisotropicDiffusionImageFilter_h

#include "itkDenseFiniteDifferenceImageFilter.h"
#include "itkAnisotropicDiffusionFunction.h"
#include "itkNumericTraits.h"

namespace itk
{
template< typename TInputImage, typename TOutputImage >
class ITK_TEMPLATE_EXPORT AnisotropicDiffusionImageFilter:
  public DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(AnisotropicDiffusionImageFilter);

  using Self = AnisotropicDiffusionImageFilter;
  using Superclass = DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  itkTypeMacro(AnisotropicDiffusionImageFilter,
               DenseFiniteDifferenceImageFilter);

  using InputImageType = typename Superclass::InputImageType;
  using OutputImageType = typename Superclass::OutputImageType;
  using UpdateBufferType = typename Superclass::UpdateBufferType;

  static constexpr unsigned int ImageDimension = Superclass::ImageDimension;

  using PixelType = typename Superclass::PixelType;
  using TimeStepType = typename Superclass::TimeStepType;

  itkSetMacro(TimeStep, TimeStepType);
  itkGetConstMacro(TimeStep, TimeStepType);

  itkSetMacro(ConductanceParameter, double);
  itkGetConstMacro(ConductanceParameter, double);

  itkSetMacro(ConductanceScalingUpdateInterval, unsigned int);
  itkGetConstMacro(ConductanceScalingUpdateInterval, unsigned int);

  itkSetMacro(ConductanceScalingParameter, double);
  itkGetConstMacro(ConductanceScalingParameter, double);

  void SetFixedAverageGradientMagnitude(double a)
  {
    m_FixedAverageGradientMagnitude = a;
    this->Modified();
    m_GradientMagnitudeIsFixed = true;
  }

  itkGetConstMacro(FixedAverageGradientMagnitude, double);

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

  //  virtual bool Halt();

  void InitializeIteration() override;

  bool m_GradientMagnitudeIsFixed;

private:
  double       m_ConductanceParameter;
  double       m_ConductanceScalingParameter;
  unsigned int m_ConductanceScalingUpdateInterval;
  double       m_FixedAverageGradientMagnitude;

  TimeStepType m_TimeStep;
};
} // end namspace itk

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

#endif