ITK  4.4.0
Insight Segmentation and Registration Toolkit
itkGradientNDAnisotropicDiffusionFunction.h
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5  * Licensed under the Apache License, Version 2.0 (the "License");
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18 #ifndef __itkGradientNDAnisotropicDiffusionFunction_h
19 #define __itkGradientNDAnisotropicDiffusionFunction_h
20 
24 #include "itkDerivativeOperator.h"
25 
26 namespace itk
27 {
60 template< class TImage >
62  public ScalarAnisotropicDiffusionFunction< TImage >
63 {
64 public:
70 
72  itkNewMacro(Self);
73 
77 
79  typedef typename Superclass::ImageType ImageType;
80  typedef typename Superclass::PixelType PixelType;
86 
88 
90  itkStaticConstMacro(ImageDimension, unsigned int, Superclass::ImageDimension);
91 
93  virtual PixelType ComputeUpdate(const NeighborhoodType & neighborhood,
94  void *globalData,
95  const FloatOffsetType & offset = FloatOffsetType(0.0)
96  );
97 
99  virtual void InitializeIteration()
100  {
101  m_K = static_cast< PixelType >( this->GetAverageGradientMagnitudeSquared()
102  * this->GetConductanceParameter() * this->GetConductanceParameter() * -2.0f );
103  }
104 
105 protected:
108 
111 
113  std::slice x_slice[ImageDimension];
114  std::slice xa_slice[ImageDimension][ImageDimension];
115  std::slice xd_slice[ImageDimension][ImageDimension];
116 
119 
122 
124  NeighborhoodSizeValueType m_Stride[ImageDimension];
125 
126  static double m_MIN_NORM;
127 
128 private:
129  GradientNDAnisotropicDiffusionFunction(const Self &); //purposely not
130  // implemented
131  void operator=(const Self &); //purposely not
132 
133  // implemented
134 };
135 } // end namespace itk
136 
137 #ifndef ITK_MANUAL_INSTANTIATION
138 #include "itkGradientNDAnisotropicDiffusionFunction.hxx"
139 #endif
140 
141 #endif
142