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00017 #ifndef __itkAbsImageFilter_h
00018 #define __itkAbsImageFilter_h
00019
00020 #include "itkUnaryFunctorImageFilter.h"
00021 #include "itkConceptChecking.h"
00022
00023 namespace itk
00024 {
00025
00031 namespace Function {
00032
00033 template< class TInput, class TOutput>
00034 class Abs
00035 {
00036 public:
00037 Abs() {}
00038 ~Abs() {}
00039 bool operator!=( const Abs & ) const
00040 {
00041 return false;
00042 }
00043 bool operator==( const Abs & other ) const
00044 {
00045 return !(*this != other);
00046 }
00047 inline TOutput operator()( const TInput & A )
00048 { return (TOutput)( ( A > 0 ) ? A : -A ); }
00049 };
00050 }
00051
00052 template <class TInputImage, class TOutputImage>
00053 class ITK_EXPORT AbsImageFilter :
00054 public
00055 UnaryFunctorImageFilter<TInputImage,TOutputImage,
00056 Function::Abs<
00057 typename TInputImage::PixelType,
00058 typename TOutputImage::PixelType> >
00059 {
00060 public:
00062 typedef AbsImageFilter Self;
00063 typedef UnaryFunctorImageFilter<TInputImage,TOutputImage,
00064 Function::Abs< typename TInputImage::PixelType,
00065 typename TOutputImage::PixelType> > Superclass;
00066 typedef SmartPointer<Self> Pointer;
00067 typedef SmartPointer<const Self> ConstPointer;
00068
00070 itkNewMacro(Self);
00071
00072 #ifdef ITK_USE_CONCEPT_CHECKING
00073
00074 itkConceptMacro(ConvertibleCheck,
00075 (Concept::Convertible<typename TInputImage::PixelType,
00076 typename TOutputImage::PixelType>));
00077 itkConceptMacro(InputGreaterThanIntCheck,
00078 (Concept::GreaterThanComparable<typename TInputImage::PixelType, int>));
00079
00081 #endif
00082
00083 protected:
00084 AbsImageFilter() {}
00085 virtual ~AbsImageFilter() {}
00086
00087 private:
00088 AbsImageFilter(const Self&);
00089 void operator=(const Self&);
00090
00091 };
00092
00093 }
00094
00095
00096 #endif
00097