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itkMaximumProjectionImageFilter.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkMaximumProjectionImageFilter.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-01-28 18:14:36 $
00007   Version:   $Revision: 1.2 $
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 __itkMaximumProjectionImageFilter_h
00018 #define __itkMaximumProjectionImageFilter_h
00019 
00020 #include "itkProjectionImageFilter.h"
00021 #include "itkNumericTraits.h"
00022 #include "itkConceptChecking.h"
00023 
00024 namespace itk {
00045 namespace Function {
00046 template <class TInputPixel>
00047 class MaximumAccumulator
00048 {
00049 public:
00050   MaximumAccumulator( unsigned long ) {}
00051   ~MaximumAccumulator(){}
00052 
00053   inline void Initialize()
00054     {
00055     m_Maximum = NumericTraits< TInputPixel >::NonpositiveMin();
00056     }
00057 
00058   inline void operator()( const TInputPixel &input )
00059     {
00060     m_Maximum = vnl_math_max( m_Maximum, input );
00061     }
00062 
00063   inline TInputPixel GetValue()
00064     {
00065     return m_Maximum;
00066     }
00067 
00068   TInputPixel m_Maximum;
00069 };
00070 } // end namespace Function
00071 
00072 
00073 template <class TInputImage, class TOutputImage>
00074 class ITK_EXPORT MaximumProjectionImageFilter :
00075 public ProjectionImageFilter<TInputImage, TOutputImage, 
00076     Function::MaximumAccumulator< typename TInputImage::PixelType > >
00077 {
00078 public:
00079   typedef MaximumProjectionImageFilter Self;
00080   typedef ProjectionImageFilter<TInputImage, TOutputImage, 
00081   Function::MaximumAccumulator< typename TInputImage::PixelType > > Superclass;
00082 
00083   typedef TInputImage                        InputImageType;
00084   typedef typename InputImageType::PixelType InputPixelType; 
00085 
00086   typedef SmartPointer<Self>        Pointer;
00087   typedef SmartPointer<const Self>  ConstPointer;
00088 
00090   itkTypeMacro(MaximumProjectionImageFilter, ProjectionImageFilter);
00091 
00093   itkNewMacro(Self);
00094 
00095 #ifdef ITK_USE_CONCEPT_CHECKING
00096 
00097   itkConceptMacro(InputPixelTypeGreaterThanComparable,
00098     (Concept::GreaterThanComparable<InputPixelType>));
00099   itkConceptMacro(InputHasNumericTraitsCheck,
00100     (Concept::HasNumericTraits<InputPixelType>));
00101 
00103 #endif
00104 
00105 
00106 protected:
00107   MaximumProjectionImageFilter() {}
00108   virtual ~MaximumProjectionImageFilter() {}
00109 
00110 private:
00111   MaximumProjectionImageFilter(const Self&); //purposely not implemented
00112   void operator=(const Self&); //purposely not implemented
00113 
00114 
00115 }; // end MaximumProjectionImageFilter
00116 
00117 } //end namespace itk
00118 
00119 #endif
00120 

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