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itkMaskImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkMaskImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2002/05/17 18:37:35 $
00007   Version:   $Revision: 1.1 $
00008 
00009   Copyright (c) 2002 Insight 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 __itkMaskImageFilter_h
00018 #define __itkMaskImageFilter_h
00019 
00020 #include "itkBinaryFunctorImageFilter.h"
00021 #include "itkNumericTraits.h"
00022 
00023 
00024 namespace itk
00025 {
00026   
00049 namespace Functor {  
00050   
00051   template< class TInput, class TMask, class TOutput >
00052   class MaskInput
00053   {
00054   public:
00055     typedef typename NumericTraits< TInput >::AccumulateType AccumulatorType;
00056 
00057     MaskInput() {};
00058     ~MaskInput() {};
00059     inline TOutput operator()( const TInput & A, const TMask & B)
00060       {
00061       if (B != 0) 
00062         {
00063         return static_cast<TOutput>( A );
00064         }
00065       else
00066         return NumericTraits< TOutput >::Zero;
00067         
00068       }
00069   }; 
00070 
00071 }
00072 template <class TInputImage, class TMaskImage, class TOutputImage>
00073 class ITK_EXPORT MaskImageFilter :
00074     public
00075     BinaryFunctorImageFilter<TInputImage,TMaskImage,TOutputImage, 
00076     Functor::MaskInput< 
00077               typename TInputImage::PixelType, 
00078               typename TMaskImage::PixelType,
00079               typename TOutputImage::PixelType>   >
00080 
00081 
00082 {
00083 public:
00085   typedef MaskImageFilter  Self;
00086   typedef BinaryFunctorImageFilter<TInputImage,TMaskImage,TOutputImage, 
00087     Functor::MaskInput< 
00088               typename TInputImage::PixelType, 
00089               typename TMaskImage::PixelType,
00090               typename TOutputImage::PixelType>   
00091                 >  Superclass;
00092   typedef SmartPointer<Self>   Pointer;
00093   typedef SmartPointer<const Self>  ConstPointer;
00094 
00096   itkNewMacro(Self);
00097   
00098 protected:
00099   MaskImageFilter() {}
00100   virtual ~MaskImageFilter() {}
00101 
00102 private:
00103   MaskImageFilter(const Self&); //purposely not implemented
00104   void operator=(const Self&); //purposely not implemented
00105 
00106 };
00107 
00108 } // end namespace itk
00109 
00110 
00111 #endif

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