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00018 #ifndef __itkNaryMaximumImageFilter_h
00019 #define __itkNaryMaximumImageFilter_h
00020
00021 #include "itkNaryFunctorImageFilter.h"
00022 #include "itkNumericTraits.h"
00023
00024
00025 namespace itk
00026 {
00027
00060 namespace Functor {
00061
00062 template< class TInput, class TOutput >
00063 class Maximum1
00064 {
00065 public:
00066 typedef typename NumericTraits< TOutput >::ValueType OutputValueType;
00067
00068
00069 Maximum1() {}
00070 ~Maximum1() {}
00071 inline TOutput operator()( const std::vector< TInput > & B) const
00072 {
00073 OutputValueType A = NumericTraits< TOutput >::NonpositiveMin();
00074 for( unsigned int i=0; i< B.size(); i++ )
00075 {
00076 if( A < static_cast<OutputValueType>(B[i]) )
00077 {
00078 A = static_cast< OutputValueType > (B[i]);
00079 }
00080 }
00081 return A;
00082 }
00083
00084 bool operator== (const Maximum1&) const
00085 {
00086 return true;
00087 }
00088 bool operator!= (const Maximum1&) const
00089 {
00090 return false;
00091 }
00092 };
00093
00094 }
00095 template <class TInputImage, class TOutputImage>
00096 class ITK_EXPORT NaryMaximumImageFilter :
00097 public
00098 NaryFunctorImageFilter<TInputImage,TOutputImage,
00099 Functor::Maximum1< typename TInputImage::PixelType,
00100 typename TInputImage::PixelType > >
00101 {
00102 public:
00104 typedef NaryMaximumImageFilter Self;
00105 typedef NaryFunctorImageFilter<
00106 TInputImage,TOutputImage,
00107 Functor::Maximum1< typename TInputImage::PixelType,
00108 typename TInputImage::PixelType > >
00109 Superclass;
00110 typedef SmartPointer<Self> Pointer;
00111 typedef SmartPointer<const Self> ConstPointer;
00112
00114 itkNewMacro(Self);
00115
00117 itkTypeMacro(NaryMaximumImageFilter,
00118 NaryFunctorImageFilter);
00119
00120 #ifdef ITK_USE_CONCEPT_CHECKING
00121
00122 itkConceptMacro(InputConvertibleToOutputCheck,
00123 (Concept::Convertible<typename TInputImage::PixelType,
00124 typename TOutputImage::PixelType>));
00125 itkConceptMacro(InputLessThanComparableCheck,
00126 (Concept::LessThanComparable<typename TInputImage::PixelType>));
00127 itkConceptMacro(InputHasNumericTraitsCheck,
00128 (Concept::HasNumericTraits<typename TInputImage::PixelType>));
00129
00131 #endif
00132
00133 protected:
00134 NaryMaximumImageFilter() {}
00135 virtual ~NaryMaximumImageFilter() {}
00136
00137 private:
00138 NaryMaximumImageFilter(const Self&);
00139 void operator=(const Self&);
00140
00141 };
00142
00143 }
00144
00145
00146 #endif
00147