itkAnisotropicDiffusionImageFilter.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkAnisotropicDiffusionImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2009-04-25 12:27:04 $
  Version:   $Revision: 1.43 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#ifndef __itkAnisotropicDiffusionImageFilter_h
#define __itkAnisotropicDiffusionImageFilter_h

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

#define ITK_LEAN_AND_MEAN

namespace itk {

template <class TInputImage, class TOutputImage>
class ITK_EXPORT AnisotropicDiffusionImageFilter
  : public DenseFiniteDifferenceImageFilter<TInputImage, TOutputImage>
{
public:
  typedef AnisotropicDiffusionImageFilter Self;
  typedef DenseFiniteDifferenceImageFilter<TInputImage, TOutputImage>
                                          Superclass;
  typedef SmartPointer<Self>              Pointer;
  typedef SmartPointer<const Self>        ConstPointer;

  itkTypeMacro(AnisotropicDiffusionImageFilter,
               DenseFiniteDifferenceImageFilter);

  typedef typename Superclass::InputImageType   InputImageType;
  typedef typename Superclass::OutputImageType  OutputImageType;
  typedef typename Superclass::UpdateBufferType UpdateBufferType;

  itkStaticConstMacro(ImageDimension, unsigned int,Superclass::ImageDimension);

  typedef typename Superclass::PixelType    PixelType;
  typedef typename Superclass::TimeStepType 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() {}
  void PrintSelf(std::ostream& os, Indent indent) const;

  //  virtual bool Halt();

  virtual void InitializeIteration();

  bool m_GradientMagnitudeIsFixed;
  
private:
  AnisotropicDiffusionImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented
  
  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.txx"
#endif

#undef ITK_LEAN_AND_MEAN

#endif

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