ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkComplexToModulusImageFilter.h
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5  * Licensed under the Apache License, Version 2.0 (the "License");
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18 #ifndef __itkComplexToModulusImageFilter_h
19 #define __itkComplexToModulusImageFilter_h
20 
22 #include "vnl/vnl_math.h"
23 
24 namespace itk
25 {
32 namespace Functor
33 {
34 template< class TInput, class TOutput >
36 {
37 public:
40  bool operator!=(const ComplexToModulus &) const
41  {
42  return false;
43  }
44 
45  bool operator==(const ComplexToModulus & other) const
46  {
47  return !( *this != other );
48  }
49 
50  inline TOutput operator()(const TInput & A) const
51  {
52  return (TOutput)( vcl_sqrt( A.real() * A.real()
53  + A.imag() * A.imag() ) );
54  }
55 };
56 }
57 
58 template< class TInputImage, class TOutputImage >
59 class ITK_EXPORT ComplexToModulusImageFilter:
60  public
61  UnaryFunctorImageFilter< TInputImage, TOutputImage,
62  Functor::ComplexToModulus<
63  typename TInputImage::PixelType,
64  typename TOutputImage::PixelType > >
65 {
66 public:
70  TInputImage, TOutputImage,
71  Functor::ComplexToModulus< typename TInputImage::PixelType,
72  typename TOutputImage::PixelType > > Superclass;
73 
76 
78  itkNewMacro(Self);
79 
81  itkTypeMacro(ComplexToModulusImageFilter,
83 
84  typedef typename TInputImage::PixelType InputPixelType;
85  typedef typename TOutputImage::PixelType OutputPixelType;
87 
88 #ifdef ITK_USE_CONCEPT_CHECKING
89 
90  itkConceptMacro( InputMultiplyOperatorCheck,
92 
94 #endif
95 protected:
98 private:
99  ComplexToModulusImageFilter(const Self &); //purposely not implemented
100  void operator=(const Self &); //purposely not implemented
101 };
102 } // end namespace itk
104 
105 #endif
106