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itkHistogramToIntensityImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkHistogramToIntensityImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2005/04/08 21:32:05 $
00007   Version:   $Revision: 1.3 $
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 __itkHistogramIntensityFunction_h
00018 #define __itkHistogramIntensityFunction_h
00019 
00020 #include "itkHistogramToImageFilter.h"
00021 
00022 namespace itk
00023 {
00024   
00038 namespace Function {  
00039 template< class TInput>
00040 class HistogramIntensityFunction
00041 {
00042 public:
00043   
00044   //Intensity function returns pixels of unsigned long.. 
00045   typedef unsigned long  OutputPixelType   ;
00046   
00047   
00048   HistogramIntensityFunction(): 
00049       m_TotalFrequency(1) {}
00050 
00051   ~HistogramIntensityFunction() {};
00052  
00053   inline OutputPixelType operator()( const TInput & A )
00054   {
00055     return static_cast<OutputPixelType>( A );
00056   }
00057 
00058   void SetTotalFrequency( unsigned long n ) 
00059     {
00060     m_TotalFrequency = n;
00061     }
00062   
00063   unsigned long GetTotalFrequency( ) const 
00064     {
00065     return m_TotalFrequency;
00066     }
00067 
00068 private:
00069   unsigned long  m_TotalFrequency;
00070 }; 
00071 }
00072 
00073 template <class THistogram >
00074 class ITK_EXPORT HistogramToIntensityImageFilter :
00075   public HistogramToImageFilter< THistogram, 
00076   Function::HistogramIntensityFunction< unsigned long> > 
00077 {
00078 public:
00079   
00081   typedef HistogramToIntensityImageFilter Self;
00082   //typedef typename Function::HistogramIntensityFunction     FunctorType;
00083   typedef SmartPointer<Self>   Pointer;
00084   typedef SmartPointer<const Self>  ConstPointer;
00085 
00087   itkNewMacro(Self);
00088 
00089 protected:
00090   HistogramToIntensityImageFilter() {}
00091   virtual ~HistogramToIntensityImageFilter() {}
00092   
00093 private:
00094   HistogramToIntensityImageFilter(const Self&); //purposely not implemented
00095   void operator=(const Self&); //purposely not implemented
00096 
00097 };
00098 
00099 } // end namespace itk
00100 
00101 #endif
00102 
00103 
00104 
00105 

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