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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 ) const
00048 {
00049 return (TOutput)( ( A > 0 ) ? A : -A );
00050 }
00051 };
00052 }
00053
00054 template <class TInputImage, class TOutputImage>
00055 class ITK_EXPORT AbsImageFilter :
00056 public
00057 UnaryFunctorImageFilter<TInputImage,TOutputImage,
00058 Function::Abs<
00059 typename TInputImage::PixelType,
00060 typename TOutputImage::PixelType> >
00061 {
00062 public:
00064 typedef AbsImageFilter Self;
00065 typedef UnaryFunctorImageFilter<TInputImage,TOutputImage,
00066 Function::Abs< typename TInputImage::PixelType,
00067 typename TOutputImage::PixelType> > Superclass;
00068 typedef SmartPointer<Self> Pointer;
00069 typedef SmartPointer<const Self> ConstPointer;
00070
00072 itkNewMacro(Self);
00073
00075 itkTypeMacro(AbsImageFilter,
00076 UnaryFunctorImageFilter);
00077
00078 #ifdef ITK_USE_CONCEPT_CHECKING
00079
00080 itkConceptMacro(ConvertibleCheck,
00081 (Concept::Convertible<typename TInputImage::PixelType,
00082 typename TOutputImage::PixelType>));
00083 itkConceptMacro(InputGreaterThanIntCheck,
00084 (Concept::GreaterThanComparable<typename TInputImage::PixelType, int>));
00085
00087 #endif
00088
00089 protected:
00090 AbsImageFilter() {}
00091 virtual ~AbsImageFilter() {}
00092
00093 private:
00094 AbsImageFilter(const Self&);
00095 void operator=(const Self&);
00096
00097 };
00098
00099 }
00100
00101
00102 #endif
00103