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itkEdgePotentialImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkEdgePotentialImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-04-01 14:36:17 $
00007   Version:   $Revision: 1.12 $
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 __itkEdgePotentialImageFilter_h
00018 #define __itkEdgePotentialImageFilter_h
00019 
00020 #include "itkUnaryFunctorImageFilter.h"
00021 
00022 namespace itk
00023 {
00024   
00036 namespace Functor {  
00037   
00038 template< class TInput, class TOutput>
00039 class EdgePotential
00040 {
00041 public:
00042   EdgePotential() {};
00043   ~EdgePotential() {};
00044   bool operator!=( const EdgePotential & ) const
00045     {
00046     return false;
00047     }
00048   bool operator==( const EdgePotential & other ) const
00049     {
00050     return !(*this != other);
00051     }
00052   inline TOutput operator()( const TInput & A ) const
00053     {
00054     return static_cast<TOutput>( vcl_exp(-1.0 * A.GetNorm() ) );
00055     }
00056 };
00057 }
00058 
00059 template <class TInputImage, class TOutputImage>
00060 class ITK_EXPORT EdgePotentialImageFilter :
00061     public
00062 UnaryFunctorImageFilter<TInputImage,TOutputImage, 
00063                         Functor::EdgePotential< 
00064   typename TInputImage::PixelType, 
00065   typename TOutputImage::PixelType> >
00066 {
00067 public:
00069   typedef EdgePotentialImageFilter  Self;
00070   typedef UnaryFunctorImageFilter<TInputImage,TOutputImage, 
00071                                   Functor::EdgePotential< 
00072     typename TInputImage::PixelType, 
00073     typename TOutputImage::PixelType>   
00074   >                                 Superclass;
00075   typedef SmartPointer<Self>        Pointer;
00076   typedef SmartPointer<const Self>  ConstPointer;
00077 
00079   itkNewMacro(Self);
00080 
00082   itkTypeMacro(EdgePotentialImageFilter, 
00083                UnaryFunctorImageFilter);
00084 
00085 #ifdef ITK_USE_CONCEPT_CHECKING
00086 
00087   itkConceptMacro(InputHasNumericTraitsCheck,
00088     (Concept::HasNumericTraits<typename TInputImage::PixelType::ValueType>));
00089 
00091 #endif
00092 
00093 protected:
00094   EdgePotentialImageFilter() {}
00095   virtual ~EdgePotentialImageFilter() {}
00096 
00097 private:
00098   EdgePotentialImageFilter(const Self&); //purposely not implemented
00099   void operator=(const Self&); //purposely not implemented
00100 
00101 };
00102 
00103 
00104 } // end namespace itk
00105 
00106 
00107 #endif
00108 

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