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itkGradientToMagnitudeImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkGradientToMagnitudeImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2002/09/26 16:35:56 $
00007   Version:   $Revision: 1.14 $
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 __itkGradientToMagnitudeImageFilter_h
00018 #define __itkGradientToMagnitudeImageFilter_h
00019 
00020 #include "itkUnaryFunctorImageFilter.h"
00021 
00022 namespace itk
00023 {
00024   
00039 namespace Functor {  
00040   
00041   template< class TInput, class TOutput>
00042     class GradientMagnitude
00043     {
00044     public:
00045       GradientMagnitude() {}
00046       ~GradientMagnitude() {}
00047 
00048       inline TOutput operator()( const TInput & A )
00049       {
00050         return static_cast<TOutput>( A.GetNorm() );
00051       }
00052     }; 
00053 }
00054  
00055 template <class TInputImage, class TOutputImage>
00056 class ITK_EXPORT GradientToMagnitudeImageFilter :
00057   public
00058   UnaryFunctorImageFilter<TInputImage,TOutputImage, 
00059   Functor::GradientMagnitude< typename TInputImage::PixelType, 
00060                          typename TOutputImage::PixelType>   >
00061   {
00062   public:
00064     typedef GradientToMagnitudeImageFilter Self;
00065     typedef UnaryFunctorImageFilter<TInputImage,TOutputImage, 
00066       Functor::GradientMagnitude< typename TInputImage::PixelType, 
00067       typename TOutputImage::PixelType> > Superclass;
00068     typedef SmartPointer<Self> Pointer;
00069     typedef SmartPointer<const Self> ConstPointer;
00070     
00072     itkNewMacro(Self);
00073 
00074   protected:
00075     GradientToMagnitudeImageFilter() {}
00076     virtual ~GradientToMagnitudeImageFilter() {}
00077     
00078   private:
00079     GradientToMagnitudeImageFilter(const Self&); //purposely not implemented
00080     void operator=(const Self&); //purposely not implemented
00081   };
00082  
00083 } // end namespace itk
00084 
00085 
00086 #endif

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