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Numerics/Statistics/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: 2009-04-01 14:36:37 $
00007   Version:   $Revision: 1.8 $
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 __itkHistogramToIntensityImageFilter_h
00018 #define __itkHistogramToIntensityImageFilter_h
00019 
00020 #include "itkHistogramToImageFilter.h"
00021 
00022 namespace itk
00023 {
00024   
00038 namespace Function {  
00039 template< class TInput, class TOutput=unsigned long >
00040 class HistogramIntensityFunction
00041 {
00042 public:
00043   
00044   //Intensity function returns pixels of unsigned long.. 
00045   typedef TOutput  OutputPixelType;
00046   
00047   HistogramIntensityFunction(): 
00048       m_TotalFrequency(1) {}
00049 
00050   ~HistogramIntensityFunction() {};
00051  
00052   inline OutputPixelType operator()( const TInput & A ) const
00053     {
00054     return static_cast<OutputPixelType>( A );
00055     }
00056 
00057   void SetTotalFrequency( unsigned long n ) 
00058     {
00059     m_TotalFrequency = n;
00060     }
00061   
00062   unsigned long GetTotalFrequency( ) const 
00063     {
00064     return m_TotalFrequency;
00065     }
00066 
00067 private:
00068   unsigned long  m_TotalFrequency;
00069 }; 
00070 }
00071 
00072 template <class THistogram, class TOutputPixel=unsigned long >
00073 class ITK_EXPORT HistogramToIntensityImageFilter :
00074   public HistogramToImageFilter< THistogram, 
00075   Function::HistogramIntensityFunction< unsigned long, TOutputPixel > > 
00076 {
00077 public:
00078   
00080   typedef HistogramToIntensityImageFilter                  Self;
00081 
00083   typedef HistogramToImageFilter< THistogram, 
00084     Function::HistogramIntensityFunction< unsigned long, TOutputPixel > >
00085                                                            Superclass;
00086 
00087   //typedef typename Function::HistogramIntensityFunction  FunctorType;
00088   typedef SmartPointer<Self>                               Pointer;
00089   typedef SmartPointer<const Self>                         ConstPointer;
00090   
00092   itkTypeMacro( HistogramToIntensityImageFilter, HistogramToImageFilter );
00093 
00095   itkNewMacro(Self);
00096 
00097 protected:
00098   HistogramToIntensityImageFilter() {}
00099   virtual ~HistogramToIntensityImageFilter() {}
00100   
00101 private:
00102   HistogramToIntensityImageFilter(const Self&); //purposely not implemented
00103   void operator=(const Self&); //purposely not implemented
00104 
00105 };
00106 
00107 } // end namespace itk
00108 
00109 #endif
00110 

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