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itkVectorCurvatureNDAnisotropicDiffusionFunction.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkVectorCurvatureNDAnisotropicDiffusionFunction.h,v $
00005   Language:  C++
00006   Date:      $Date: 2003/09/10 14:28:59 $
00007   Version:   $Revision: 1.13 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 #ifndef __itkVectorCurvatureNDAnisotropicDiffusionFunction_h_
00018 #define __itkVectorCurvatureNDAnisotropicDiffusionFunction_h_
00019 
00020 #include "itkVectorAnisotropicDiffusionFunction.h"
00021 #include "itkNeighborhoodAlgorithm.h"
00022 #include "itkVectorNeighborhoodInnerProduct.h"
00023 #include "itkDerivativeOperator.h"
00024 
00025 namespace itk {
00026 
00041 template <class TImage>
00042 class ITK_EXPORT VectorCurvatureNDAnisotropicDiffusionFunction :
00043     public VectorAnisotropicDiffusionFunction<TImage>
00044 {
00045 public:
00047   typedef VectorCurvatureNDAnisotropicDiffusionFunction Self;
00048   typedef VectorAnisotropicDiffusionFunction<TImage> Superclass;
00049   typedef SmartPointer<Self> Pointer;
00050   typedef SmartPointer<const Self> ConstPointer;
00051 
00053   itkNewMacro(Self);
00054 
00056   itkTypeMacro( VectorCurvatureNDAnisotropicDiffusionFunction,
00057                 VectorAnisotropicDiffusionFunction );
00058 
00060   typedef typename Superclass::ImageType        ImageType;
00061   typedef typename Superclass::PixelType        PixelType;
00062   typedef typename Superclass::TimeStepType     TimeStepType;
00063   typedef typename Superclass::RadiusType       RadiusType;
00064   typedef typename Superclass::NeighborhoodType NeighborhoodType;
00065   typedef typename Superclass::FloatOffsetType  FloatOffsetType;
00066   typedef typename PixelType::ValueType ScalarValueType;
00067 
00069   itkStaticConstMacro(ImageDimension, unsigned int,
00070                       Superclass::ImageDimension);
00071   itkStaticConstMacro(VectorDimension, unsigned int,
00072                       Superclass::VectorDimension);
00074 
00076   virtual PixelType ComputeUpdate(const NeighborhoodType &neighborhood,
00077                                   void *globalData,
00078                                   const FloatOffsetType& offset = FloatOffsetType(0.0)
00079     );
00080 
00082   virtual void InitializeIteration()
00083   {
00084     m_K = this->GetAverageGradientMagnitudeSquared() * this->GetConductanceParameter() *
00085       this->GetConductanceParameter() * -2.0f;
00086   }
00087 
00088 protected:
00089   VectorCurvatureNDAnisotropicDiffusionFunction();
00090   ~VectorCurvatureNDAnisotropicDiffusionFunction() {}
00091   void PrintSelf(std::ostream& os, Indent indent) const
00092   {  Superclass::PrintSelf(os,indent);   }
00093 
00094 private:
00095   VectorCurvatureNDAnisotropicDiffusionFunction(const Self&); //purposely not implemented
00096   void operator=(const Self&); //purposely not implemented
00097   
00099   VectorNeighborhoodInnerProduct<ImageType> m_InnerProduct;
00100 
00102   std::slice  x_slice[ImageDimension];
00103   std::slice xa_slice[ImageDimension][ImageDimension];
00104   std::slice xd_slice[ImageDimension][ImageDimension];
00105 
00107   DerivativeOperator<ScalarValueType, itkGetStaticConstMacro(ImageDimension)> dx_op;
00108 
00110   double m_K;
00111 
00112   static double m_MIN_NORM;
00113   unsigned long m_Center;
00114   unsigned long m_Stride[ImageDimension];
00115 };
00116   
00117 }// end namespace itk
00118 
00119 #ifndef ITK_MANUAL_INSTANTIATION
00120 #include "itkVectorCurvatureNDAnisotropicDiffusionFunction.txx"
00121 #endif
00122 
00123 #endif
00124 

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