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00017 #ifndef __itkChangeLabelImageFilter_h
00018 #define __itkChangeLabelImageFilter_h
00019
00020 #include "itkUnaryFunctorImageFilter.h"
00021 #include "itkConceptChecking.h"
00022 #include "itkSimpleDataObjectDecorator.h"
00023
00024 namespace itk
00025 {
00026
00048 #include <map>
00049
00050 namespace Functor {
00051
00052 template< class TInput, class TOutput>
00053 class ChangeLabel
00054 {
00055 public:
00056 ChangeLabel() {};
00057 ~ChangeLabel() {};
00058
00059 typedef std::map<TInput, TOutput> ChangeMapType;
00060
00061 bool operator!=( const ChangeLabel & other ) const
00062 {
00063 if (m_ChangeMap != other.m_ChangeMap)
00064 {
00065 return true;
00066 }
00067 return false;
00068 }
00069 bool operator==( const ChangeLabel & other ) const
00070 {
00071 return !(*this != other);
00072 }
00073 TOutput GetChange( const TInput & original )
00074 {
00075 return m_ChangeMap[original];
00076 }
00077
00078 void SetChange( const TInput & original, const TOutput & result )
00079 {
00080 m_ChangeMap[original] = result;
00081 }
00082
00083 void SetChangeMap( const ChangeMapType & changeMap )
00084 {
00085 m_ChangeMap = changeMap;
00086 }
00087
00088 void ClearChangeMap( )
00089 {
00090 m_ChangeMap.clear();
00091 }
00092
00093 inline TOutput operator()( const TInput & A ) const
00094 {
00095 const typename ChangeMapType::const_iterator it = m_ChangeMap.find(A);
00096 if ( it != m_ChangeMap.end() )
00097 {
00098 return it->second;
00099 }
00100 return A;
00101 }
00102
00103 private:
00104 ChangeMapType m_ChangeMap;
00105
00106 };
00107 }
00108
00109 template <class TInputImage, class TOutputImage>
00110 class ITK_EXPORT ChangeLabelImageFilter :
00111 public
00112 UnaryFunctorImageFilter<TInputImage,TOutputImage,
00113 Functor::ChangeLabel<
00114 typename TInputImage::PixelType,
00115 typename TOutputImage::PixelType> >
00116 {
00117 public:
00119 typedef ChangeLabelImageFilter Self;
00120 typedef UnaryFunctorImageFilter<TInputImage,TOutputImage,
00121 Functor::ChangeLabel<
00122 typename TInputImage::PixelType,
00123 typename TOutputImage::PixelType>
00124 > Superclass;
00125 typedef SmartPointer<Self> Pointer;
00126 typedef SmartPointer<const Self> ConstPointer;
00127
00129 itkNewMacro(Self);
00130
00132 itkTypeMacro(ChangeLabelImageFilter, UnaryFunctorImageFilter);
00133
00135 typedef typename TInputImage::PixelType InputPixelType;
00136 typedef typename TOutputImage::PixelType OutputPixelType;
00137
00139 typedef std::map<InputPixelType, OutputPixelType> ChangeMapType;
00140
00142 void SetChange( const InputPixelType & original, const OutputPixelType & result );
00143
00145 void SetChangeMap( const ChangeMapType & changeMap );
00146
00148 void ClearChangeMap( );
00149
00150 #ifdef ITK_USE_CONCEPT_CHECKING
00151
00152 itkConceptMacro(InputConvertibleToOutputCheck,
00153 (Concept::Convertible<InputPixelType, OutputPixelType>));
00154 itkConceptMacro(PixelTypeComparable,
00155 (Concept::Comparable<InputPixelType>));
00156
00158 #endif
00159
00160 protected:
00161 ChangeLabelImageFilter();
00162 virtual ~ChangeLabelImageFilter() {}
00163 void PrintSelf(std::ostream& os, Indent indent) const;
00164
00165 private:
00166 ChangeLabelImageFilter(const Self&);
00167 void operator=(const Self&);
00168 };
00169
00170 }
00171
00172 #ifndef ITK_MANUAL_INSTANTIATION
00173 #include "itkChangeLabelImageFilter.txx"
00174 #endif
00175
00176 #endif
00177