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00020 #ifndef __itkBoundedReciprocalImageFilter_h
00021 #define __itkBoundedReciprocalImageFilter_h
00022
00023 #include "itkUnaryFunctorImageFilter.h"
00024
00025 namespace itk
00026 {
00027
00036 namespace Functor {
00037
00038 template< class TInput, class TOutput>
00039 class BoundedReciprocal
00040 {
00041 public:
00042 BoundedReciprocal() {};
00043 ~BoundedReciprocal() {};
00044 bool operator!=( const BoundedReciprocal & ) const
00045 {
00046 return false;
00047 }
00048 bool operator==( const BoundedReciprocal & other ) const
00049 {
00050 return !(*this != other);
00051 }
00052 inline TOutput operator()( const TInput & A ) const
00053 {
00054 return static_cast<TOutput>( 1.0 / ( 1.0 + static_cast<double>(A) ) );
00055 }
00056 };
00057 }
00058
00059 template <class TInputImage, class TOutputImage>
00060 class ITK_EXPORT BoundedReciprocalImageFilter :
00061 public
00062 UnaryFunctorImageFilter<TInputImage,TOutputImage,
00063 Functor::BoundedReciprocal<
00064 typename TInputImage::PixelType,
00065 typename TOutputImage::PixelType> >
00066 {
00067 public:
00069 typedef BoundedReciprocalImageFilter Self;
00070 typedef UnaryFunctorImageFilter<TInputImage,TOutputImage,
00071 Functor::BoundedReciprocal<
00072 typename TInputImage::PixelType,
00073 typename TOutputImage::PixelType>
00074 > Superclass;
00075 typedef SmartPointer<Self> Pointer;
00076 typedef SmartPointer<const Self> ConstPointer;
00077
00079 itkNewMacro(Self);
00080
00082 itkTypeMacro(BoundedReciprocalImageFilter,
00083 UnaryFunctorImageFilter);
00084
00085 #ifdef ITK_USE_CONCEPT_CHECKING
00086
00087 itkConceptMacro(InputConvertibleToDoubleCheck,
00088 (Concept::Convertible<typename TInputImage::PixelType, double>));
00089 itkConceptMacro(DoubleConvertibleToOutputCheck,
00090 (Concept::Convertible<double, typename TOutputImage::PixelType>));
00091
00093 #endif
00094
00095 protected:
00096 BoundedReciprocalImageFilter() {}
00097 virtual ~BoundedReciprocalImageFilter() {}
00098
00099 private:
00100 BoundedReciprocalImageFilter(const Self&);
00101 void operator=(const Self&);
00102
00103 };
00104
00105
00106 }
00107
00108
00109 #endif
00110