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itkAbsImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkAbsImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-04-01 14:36:03 $
00007   Version:   $Revision: 1.10 $
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 __itkAbsImageFilter_h
00018 #define __itkAbsImageFilter_h
00019 
00020 #include "itkUnaryFunctorImageFilter.h"
00021 #include "itkConceptChecking.h"
00022 
00023 namespace itk
00024 {
00025   
00031 namespace Function {  
00032   
00033 template< class TInput, class TOutput>
00034 class Abs
00035 {
00036 public:
00037   Abs() {}
00038   ~Abs() {}
00039   bool operator!=( const Abs & ) const
00040     {
00041     return false;
00042     }
00043   bool operator==( const Abs & other ) const
00044     {
00045     return !(*this != other);
00046     }
00047   inline TOutput operator()( const TInput & A ) const
00048     {
00049     return (TOutput)( ( A > 0 ) ? A : -A );
00050     }
00051 }; 
00052 }
00053 
00054 template <class TInputImage, class TOutputImage>
00055 class ITK_EXPORT AbsImageFilter :
00056     public
00057 UnaryFunctorImageFilter<TInputImage,TOutputImage, 
00058                         Function::Abs< 
00059   typename TInputImage::PixelType, 
00060   typename TOutputImage::PixelType>   >
00061 {
00062 public:
00064   typedef AbsImageFilter  Self;
00065   typedef UnaryFunctorImageFilter<TInputImage,TOutputImage, 
00066                                   Function::Abs< typename TInputImage::PixelType, 
00067                                                  typename TOutputImage::PixelType> >  Superclass;
00068   typedef SmartPointer<Self>        Pointer;
00069   typedef SmartPointer<const Self>  ConstPointer;
00070 
00072   itkNewMacro(Self);
00073 
00075   itkTypeMacro(AbsImageFilter, 
00076                UnaryFunctorImageFilter);
00077 
00078 #ifdef ITK_USE_CONCEPT_CHECKING
00079 
00080   itkConceptMacro(ConvertibleCheck,
00081     (Concept::Convertible<typename TInputImage::PixelType,
00082                           typename TOutputImage::PixelType>));
00083   itkConceptMacro(InputGreaterThanIntCheck,
00084     (Concept::GreaterThanComparable<typename TInputImage::PixelType, int>));
00085 
00087 #endif
00088 
00089 protected:
00090   AbsImageFilter() {}
00091   virtual ~AbsImageFilter() {}
00092 
00093 private:
00094   AbsImageFilter(const Self&); //purposely not implemented
00095   void operator=(const Self&); //purposely not implemented
00096 
00097 };
00098 
00099 } // end namespace itk
00100 
00101 
00102 #endif
00103 

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