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itkMahalanobisDistanceThresholdImageFunction.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkMahalanobisDistanceThresholdImageFunction.h,v $
00005   Language:  C++
00006   Date:      $Date: 2004/11/04 20:40:40 $
00007   Version:   $Revision: 1.5 $
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 _itkMahalanobisDistanceThresholdImageFunction_h
00018 #define _itkMahalanobisDistanceThresholdImageFunction_h
00019 
00020 #include "itkImageFunction.h"
00021 #include "itkMahalanobisDistanceMembershipFunction.h"
00022 
00023 namespace itk
00024 {
00025 
00046 template <class TInputImage, class TCoordRep = float>
00047 class ITK_EXPORT MahalanobisDistanceThresholdImageFunction : 
00048   public ImageFunction<TInputImage,bool,TCoordRep> 
00049 {
00050 public:
00052   typedef MahalanobisDistanceThresholdImageFunction Self;
00053   typedef ImageFunction<TInputImage,bool,TCoordRep> Superclass;
00054   typedef SmartPointer<Self> Pointer;
00055   typedef SmartPointer<const Self>  ConstPointer;
00056   
00058   itkTypeMacro(MahalanobisDistanceThresholdImageFunction, ImageFunction);
00059 
00061   itkNewMacro(Self);
00062 
00064   typedef typename Superclass::InputImageType InputImageType;
00065   
00067   typedef typename TInputImage::PixelType PixelType;
00068 
00070   itkStaticConstMacro(ImageDimension, unsigned int,Superclass::ImageDimension);
00071 
00073   typedef typename Superclass::PointType PointType;
00074 
00076   typedef typename Superclass::IndexType IndexType;
00077 
00079   typedef typename Superclass::ContinuousIndexType ContinuousIndexType;
00080 
00082   typedef vnl_matrix<double> CovarianceMatrixType;
00083   
00085   typedef vnl_vector<double> MeanVectorType;
00086   
00095   virtual bool Evaluate( const PointType& point ) const;
00096 
00105   virtual bool EvaluateAtContinuousIndex( 
00106                         const ContinuousIndexType & index ) const;
00107 
00116   virtual bool EvaluateAtIndex( const IndexType & index ) const;
00117 
00124   virtual double EvaluateDistance( const PointType& point ) const;
00125 
00132   virtual double EvaluateDistanceAtIndex( const IndexType & index ) const;
00133 
00135   itkGetConstReferenceMacro(Threshold,double);
00136   itkSetMacro(Threshold,double);
00137 
00139   void SetMean(const MeanVectorType &mean);
00140   const MeanVectorType & GetMean() const;
00141  
00146   void SetCovariance(const CovarianceMatrixType &cov); 
00147   const CovarianceMatrixType & GetCovariance() const;
00148   
00149 
00150 protected:
00151   MahalanobisDistanceThresholdImageFunction();
00152   ~MahalanobisDistanceThresholdImageFunction(){};
00153   void PrintSelf(std::ostream& os, Indent indent) const;
00154 
00155 private:
00156   MahalanobisDistanceThresholdImageFunction( const Self& ); //purposely not implemented
00157   void operator=( const Self& ); //purposely not implemented
00158 
00159   double  m_Threshold;
00160 
00161   // This is intended only for Image of Vector pixel type.
00162   typedef Statistics::MahalanobisDistanceMembershipFunction<
00163                                             PixelType 
00164                                               >  MahalanobisDistanceFunctionType;
00165 
00166   typedef typename MahalanobisDistanceFunctionType::Pointer MahalanobisDistanceFunctionPointer;
00167   MahalanobisDistanceFunctionPointer m_MahalanobisDistanceMembershipFunction;
00168 
00169 };
00170 
00171 } // namespace itk
00172 
00173 #ifndef ITK_MANUAL_INSTANTIATION
00174 #include "itkMahalanobisDistanceThresholdImageFunction.txx"
00175 #endif
00176 
00177 #endif

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