itkRobustAutomaticThresholdCalculator.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 itkRobustAutomaticThresholdCalculator_h
#define itkRobustAutomaticThresholdCalculator_h

#include "itkMacro.h"
#include "itkImage.h"

namespace itk
{
template< typename TInputImage, typename TGradientImage >
class ITK_TEMPLATE_EXPORT RobustAutomaticThresholdCalculator:public Object
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(RobustAutomaticThresholdCalculator);

  using Self = RobustAutomaticThresholdCalculator;
  using Superclass = Object;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  itkNewMacro(Self);

  itkTypeMacro(RobustAutomaticThresholdCalculator, Object);

  static constexpr unsigned int ImageDimension = TInputImage::ImageDimension;

  using InputImageType = TInputImage;
  using GradientImageType = TGradientImage;

  using InputImagePointer = typename InputImageType::Pointer;
  using InputImageConstPointer = typename InputImageType::ConstPointer;
  using GradientImagePointer = typename GradientImageType::Pointer;
  using GradientImageConstPointer = typename GradientImageType::ConstPointer;
  using InputPixelType = typename InputImageType::PixelType;
  using GradientPixelType = typename GradientImageType::PixelType;

  virtual void SetInput(const InputImageType *image)
  {
    if ( m_Input != image )
      {
      m_Input = image;
      this->Modified();
      m_Valid = false;
      }
  }

  virtual void SetGradient(const GradientImageType *image)
  {
    if ( m_Gradient != image )
      {
      m_Gradient = image;
      this->Modified();
      m_Valid = false;
      }
  }

  itkSetMacro(Pow, double);
  itkGetConstMacro(Pow, double);

  void Compute();

  const InputPixelType & GetOutput() const;

protected:
  RobustAutomaticThresholdCalculator();
  ~RobustAutomaticThresholdCalculator() override {}
  void PrintSelf(std::ostream & os, Indent indent) const override;

private:
  bool           m_Valid; // Have moments been computed yet?
  double         m_Pow;
  InputPixelType m_Output;

  InputImageConstPointer    m_Input;
  GradientImageConstPointer m_Gradient;
};
} // end namespace itk

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

#endif