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itkAbsImageAdaptor.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkAbsImageAdaptor.h,v $
00005   Language:  C++
00006   Date:      $Date: 2006-03-19 04:36:58 $
00007   Version:   $Revision: 1.4 $
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 __itkAbsImageAdaptor_h
00018 #define __itkAbsImageAdaptor_h
00019 
00020 #include <itkImageAdaptor.h>
00021 
00022 namespace itk
00023 {
00024  
00025 namespace Accessor {
00036 template <class TInternalType, class TExternalType >
00037 class ITK_EXPORT AbsPixelAccessor  
00038 {
00039 public:
00042   typedef TExternalType ExternalType;
00043 
00046   typedef TInternalType InternalType;
00047 
00048   static inline void Set(TInternalType & output, const TExternalType & input) 
00049     {output = (TInternalType)(
00050              (input > NumericTraits<TExternalType>::Zero) ? input : -input );}
00051 
00052   static inline TExternalType Get( const TInternalType & input ) 
00053     {return (TExternalType) ( 
00054              (input > NumericTraits<TInternalType>::Zero) ? input : -input );}
00055 };
00056   
00057 } // end namespace Accessor
00058  
00067 template <class TImage, class TOutputPixelType>
00068 class ITK_EXPORT AbsImageAdaptor : public
00069       ImageAdaptor<TImage,
00070                    Accessor::AbsPixelAccessor<
00071                                       typename TImage::PixelType,
00072                                       TOutputPixelType>   >
00073 {
00074 public:
00076   typedef AbsImageAdaptor                           Self;
00077   typedef ImageAdaptor<TImage, Accessor::AbsPixelAccessor<
00078                                typename TImage::PixelType,
00079                                TOutputPixelType> >  Superclass;
00080   typedef SmartPointer<Self>                        Pointer;
00081   typedef SmartPointer<const Self>                  ConstPointer;
00082 
00084   itkNewMacro(Self);  
00085 
00087   itkTypeMacro( AbsImageAdaptor, ImageAdaptor );
00088 
00089 protected:
00090   AbsImageAdaptor() {}
00091   virtual ~AbsImageAdaptor() {}
00092   
00093 private:
00094   AbsImageAdaptor(const Self&); //purposely not implemented
00095   void operator=(const Self&); //purposely not implemented
00096 
00097 };
00098 
00099 } // end namespace itk
00100 
00101 #endif
00102 

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