ITK  4.4.0
Insight Segmentation and Registration Toolkit
itkComplexToPhaseImageFilter.h
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5  * Licensed under the Apache License, Version 2.0 (the "License");
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18 #ifndef __itkComplexToPhaseImageFilter_h
19 #define __itkComplexToPhaseImageFilter_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 ComplexToPhase &) const
41  {
42  return false;
43  }
44 
45  bool operator==(const ComplexToPhase & other) const
46  {
47  return !( *this != other );
48  }
49 
50  inline TOutput operator()(const TInput & A) const
51  {
52  return (TOutput)( vcl_atan2( A.imag(), A.real() ) );
53  }
54 };
55 }
56 
57 template< class TInputImage, class TOutputImage >
58 class ITK_EXPORT ComplexToPhaseImageFilter:
59  public
60  UnaryFunctorImageFilter< TInputImage, TOutputImage,
61  Functor::ComplexToPhase<
62  typename TInputImage::PixelType,
63  typename TOutputImage::PixelType > >
64 {
65 public:
69  TInputImage, TOutputImage,
70  Functor::ComplexToPhase< typename TInputImage::PixelType,
71  typename TOutputImage::PixelType > > Superclass;
72 
75 
77  itkNewMacro(Self);
78 
80  itkTypeMacro(ComplexToPhaseImageFilter,
82 
83  typedef typename TInputImage::PixelType InputPixelType;
84  typedef typename TOutputImage::PixelType OutputPixelType;
86 
87 #ifdef ITK_USE_CONCEPT_CHECKING
88 
89  itkConceptMacro( InputConvertibleToOutputCheck,
91 
93 #endif
94 
95 protected:
98 
99 private:
100  ComplexToPhaseImageFilter(const Self &); //purposely not implemented
101  void operator=(const Self &); //purposely not implemented
102 };
103 } // end namespace itk
104 
105 #endif
106