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00017 #ifndef __itkComplexToImaginaryImageFilter_h
00018 #define __itkComplexToImaginaryImageFilter_h
00019
00020 #include "itkUnaryFunctorImageFilter.h"
00021 #include "vnl/vnl_math.h"
00022
00023 namespace itk
00024 {
00025
00031 namespace Function {
00032
00033 template< class TInput, class TOutput>
00034 class ComplexToImaginary
00035 {
00036 public:
00037 ComplexToImaginary() {}
00038 ~ComplexToImaginary() {}
00039 bool operator!=( const ComplexToImaginary & ) const
00040 {
00041 return false;
00042 }
00043 bool operator==( const ComplexToImaginary & other ) const
00044 {
00045 return !(*this != other);
00046 }
00047 inline TOutput operator()( const TInput & A ) const
00048 {
00049 return (TOutput)( A.imag() );
00050 }
00051 };
00052 }
00053
00054 template <class TInputImage, class TOutputImage>
00055 class ITK_EXPORT ComplexToImaginaryImageFilter :
00056 public
00057 UnaryFunctorImageFilter<TInputImage,TOutputImage,
00058 Function::ComplexToImaginary<
00059 typename TInputImage::PixelType,
00060 typename TOutputImage::PixelType> >
00061 {
00062 public:
00064 typedef ComplexToImaginaryImageFilter Self;
00065 typedef UnaryFunctorImageFilter<
00066 TInputImage,TOutputImage,
00067 Function::ComplexToImaginary< typename TInputImage::PixelType,
00068 typename TOutputImage::PixelType> >
00069 Superclass;
00070 typedef SmartPointer<Self> Pointer;
00071 typedef SmartPointer<const Self> ConstPointer;
00072
00074 itkNewMacro(Self);
00075
00077 itkTypeMacro(ComplexToImaginaryImageFilter,
00078 UnaryFunctorImageFilter);
00079
00080 typedef typename TInputImage::PixelType InputPixelType;
00081 typedef typename TOutputImage::PixelType OutputPixelType;
00082 typedef typename NumericTraits< InputPixelType >::ValueType InputPixelValueType;
00083
00084 #ifdef ITK_USE_CONCEPT_CHECKING
00085
00086 itkConceptMacro(InputConvertibleToOutputCheck,
00087 (Concept::Convertible<InputPixelValueType, OutputPixelType>));
00088
00090 #endif
00091
00092 protected:
00093 ComplexToImaginaryImageFilter() {}
00094 virtual ~ComplexToImaginaryImageFilter() {}
00095
00096 private:
00097 ComplexToImaginaryImageFilter(const Self&);
00098 void operator=(const Self&);
00099
00100 };
00101
00102 }
00103
00104
00105 #endif
00106