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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: 2009-01-24 20:02:57 $
00007   Version:   $Revision: 1.9 $
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 
00032 template <class TImageType, class TFeatureImageType = TImageType>
00033 class ITK_EXPORT LaplacianSegmentationLevelSetFunction
00034   : public SegmentationLevelSetFunction<TImageType, TFeatureImageType>
00035 {
00036 public:
00038   typedef LaplacianSegmentationLevelSetFunction Self;
00039   typedef SegmentationLevelSetFunction<TImageType, TFeatureImageType>
00040                                                 Superclass;
00041   typedef SmartPointer<Self>                    Pointer;
00042   typedef SmartPointer<const Self>              ConstPointer;
00043   typedef TFeatureImageType                     FeatureImageType;
00044 
00046   itkNewMacro(Self);
00047 
00049   itkTypeMacro( LaplacianSegmentationLevelSetFunction, SegmentationLevelSetFunction );
00050 
00052   typedef typename Superclass::ImageType         ImageType;
00053   typedef typename Superclass::ScalarValueType   ScalarValueType;
00054   typedef typename Superclass::FeatureScalarType FeatureScalarType;
00055   typedef typename Superclass::RadiusType        RadiusType;
00056 
00058   itkStaticConstMacro(ImageDimension, unsigned int,
00059                       Superclass::ImageDimension);
00060 
00061 
00062   virtual void CalculateSpeedImage();
00063 
00064   virtual void Initialize(const RadiusType &r)
00065     {
00066     Superclass::Initialize(r);
00067     
00068     this->SetAdvectionWeight( NumericTraits<ScalarValueType>::Zero);
00069     this->SetPropagationWeight(-1.0 * NumericTraits<ScalarValueType>::One);
00070     this->SetCurvatureWeight(NumericTraits<ScalarValueType>::One);
00071     }
00072   
00079   void SetAdvectionWeight(const ScalarValueType value)
00080     {
00081     if (value == NumericTraits<ScalarValueType>::Zero)
00082       {
00083       Superclass::SetAdvectionWeight(value);
00084       }
00085     }
00087 
00088 protected:
00089 
00090   LaplacianSegmentationLevelSetFunction()
00091     {
00092     this->SetAdvectionWeight(0.0);
00093     this->SetPropagationWeight(1.0);
00094     this->SetCurvatureWeight(1.0);
00095     }
00096   virtual ~LaplacianSegmentationLevelSetFunction() {}
00097 
00098   LaplacianSegmentationLevelSetFunction(const Self&); //purposely not implemented
00099   void operator=(const Self&); //purposely not implemented
00100 };
00101   
00102 } // end namespace itk
00103 
00104 #ifndef ITK_MANUAL_INSTANTIATION
00105 #include "itkLaplacianSegmentationLevelSetFunction.txx"
00106 #endif
00107 
00108 #endif
00109 

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