Orfeo Toolbox  4.0
itkComplexToPhaseImageFilter.h
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1 /*=========================================================================
2  *
3  * Copyright Insight Software Consortium
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
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9  * http://www.apache.org/licenses/LICENSE-2.0.txt
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12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  *=========================================================================*/
18 #ifndef __itkComplexToPhaseImageFilter_h
19 #define __itkComplexToPhaseImageFilter_h
20 
21 #include "itkUnaryFunctorImageFilter.h"
22 #include "vnl/vnl_math.h"
23 
24 namespace itk
25 {
32 namespace Functor
33 {
34 template< typename TInput, typename 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< typename TInputImage, typename TOutputImage >
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  // Begin concept checking
89  itkConceptMacro( InputConvertibleToOutputCheck,
91  // End concept checking
92 #endif
93 
94 protected:
97 
98 private:
99  ComplexToPhaseImageFilter(const Self &); //purposely not implemented
100  void operator=(const Self &); //purposely not implemented
101 };
102 } // end namespace itk
103 
104 #endif

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