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itkNaryAddImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkNaryAddImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2006/10/25 12:12:56 $
00007   Version:   $Revision: 1.33 $
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 __itkNaryAddImageFilter_h
00018 #define __itkNaryAddImageFilter_h
00019 
00020 #include "itkNaryFunctorImageFilter.h"
00021 #include "itkNumericTraits.h"
00022 
00023 namespace itk
00024 {
00025   
00055 namespace Functor {  
00056   
00057 template< class TInput, class TOutput >
00058 class Add1
00059 {
00060 public:
00061   typedef typename NumericTraits< TInput >::AccumulateType AccumulatorType;
00062   Add1() {}
00063   ~Add1() {}
00064   inline TOutput operator()( const std::vector< TInput > & B)
00065   {
00066     AccumulatorType sum = NumericTraits< TOutput >::Zero;
00067     for( unsigned int i=0; i< B.size(); i++ )
00068       {
00069       sum += static_cast< TOutput >(B[i]);
00070       }       
00071     return static_cast<TOutput>( sum );
00072   }
00073   bool operator== (const Add1&) const
00074   {
00075     return true;
00076   }
00077   bool operator!= (const Add1&) const
00078   {
00079     return false;
00080   }
00081 }; 
00082 }
00083 template <class TInputImage, class TOutputImage>
00084 class ITK_EXPORT NaryAddImageFilter :
00085     public
00086 NaryFunctorImageFilter<TInputImage,TOutputImage, 
00087                        Functor::Add1<typename TInputImage::PixelType,  typename TInputImage::PixelType > > 
00088 {
00089 public:
00091   typedef NaryAddImageFilter  Self;
00092   typedef NaryFunctorImageFilter<TInputImage,TOutputImage, 
00093                                  Functor::Add1<typename TInputImage::PixelType,  
00094                                  typename TInputImage::PixelType  > >  Superclass;
00095   typedef SmartPointer<Self>   Pointer;
00096   typedef SmartPointer<const Self>  ConstPointer;
00097 
00099   itkNewMacro(Self);
00100 
00101 #ifdef ITK_USE_CONCEPT_CHECKING
00102 
00103   itkConceptMacro(InputConvertibleToOutputCheck,
00104     (Concept::Convertible<typename TInputImage::PixelType,
00105                           typename TOutputImage::PixelType>));
00106   itkConceptMacro(InputHasZeroCheck,
00107     (Concept::HasZero<typename TInputImage::PixelType>));
00108 
00110 #endif
00111 
00112 protected:
00113   NaryAddImageFilter() {}
00114   virtual ~NaryAddImageFilter() {}
00115 
00116 private:
00117   NaryAddImageFilter(const Self&); //purposely not implemented
00118   void operator=(const Self&); //purposely not implemented
00119 
00120 };
00121 
00122 } // end namespace itk
00123 
00124 
00125 #endif
00126 

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