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itkLaplacianSegmentationLevelSetFunction.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkLaplacianSegmentationLevelSetFunction.h,v $
00005   Language:  C++
00006   Date:      $Date: 2004-08-08 12:18:38 $
00007   Version:   $Revision: 1.8 $
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 __itkLaplacianSegmentationLevelSetFunction_h_
00018 #define __itkLaplacianSegmentationLevelSetFunction_h_
00019 
00020 #include "itkSegmentationLevelSetFunction.h"
00021 
00022 namespace itk {
00023 
00024 
00030 template <class TImageType, class TFeatureImageType = TImageType>
00031 class ITK_EXPORT LaplacianSegmentationLevelSetFunction
00032   : public SegmentationLevelSetFunction<TImageType, TFeatureImageType>
00033 {
00034 public:
00035 
00037   typedef LaplacianSegmentationLevelSetFunction Self;
00038   typedef SegmentationLevelSetFunction<TImageType, TFeatureImageType> Superclass;
00039   typedef SmartPointer<Self> Pointer;
00040   typedef SmartPointer<const Self> ConstPointer;
00041   typedef TFeatureImageType FeatureImageType;
00042 
00044   itkNewMacro(Self);
00045 
00047   itkTypeMacro( LaplacianSegmentationLevelSetFunction, SegmentationLevelSetFunction );
00048 
00050   typedef typename Superclass::ImageType ImageType;
00051   typedef typename Superclass::ScalarValueType ScalarValueType;
00052   typedef typename Superclass::FeatureScalarType FeatureScalarType;
00053   typedef typename Superclass::RadiusType RadiusType;
00054 
00056   itkStaticConstMacro(ImageDimension, unsigned int,
00057                       Superclass::ImageDimension);
00058 
00059 
00060   virtual void CalculateSpeedImage();
00061 
00062   virtual void Initialize(const RadiusType &r)
00063   {
00064     Superclass::Initialize(r);
00065     
00066     this->SetAdvectionWeight( NumericTraits<ScalarValueType>::Zero);
00067     this->SetPropagationWeight(-1.0 * NumericTraits<ScalarValueType>::One);
00068     this->SetCurvatureWeight(NumericTraits<ScalarValueType>::One);
00069   }
00070   
00077   void SetAdvectionWeight(const ScalarValueType value)
00078     {
00079       if (value == NumericTraits<ScalarValueType>::Zero)
00080         {
00081         Superclass::SetAdvectionWeight(value);
00082         }
00083     }
00085 
00086 protected:
00087 
00088   LaplacianSegmentationLevelSetFunction()
00089   {
00090     this->SetAdvectionWeight(0.0);
00091     this->SetPropagationWeight(1.0);
00092     this->SetCurvatureWeight(1.0);
00093   }
00094   virtual ~LaplacianSegmentationLevelSetFunction() {}
00095 
00096   LaplacianSegmentationLevelSetFunction(const Self&); //purposely not implemented
00097   void operator=(const Self&); //purposely not implemented
00098 };
00099   
00100 } // end namespace itk
00101 
00102 #ifndef ITK_MANUAL_INSTANTIATION
00103 #include "itkLaplacianSegmentationLevelSetFunction.txx"
00104 #endif
00105 
00106 #endif
00107 

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