ITK  4.4.0
Insight Segmentation and Registration Toolkit
itkEdgePotentialImageFilter.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
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0.txt
10  *
11  * Unless required by applicable law or agreed to in writing, software
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 __itkEdgePotentialImageFilter_h
19 #define __itkEdgePotentialImageFilter_h
20 
22 
23 namespace itk
24 {
37 namespace Functor
38 {
39 template< class TInput, class TOutput >
41 {
42 public:
45  bool operator!=(const EdgePotential &) const
46  {
47  return false;
48  }
49 
50  bool operator==(const EdgePotential & other) const
51  {
52  return !( *this != other );
53  }
54 
55  inline TOutput operator()(const TInput & A) const
56  {
57  return static_cast< TOutput >( vcl_exp( -1.0 * A.GetNorm() ) );
58  }
59 };
60 }
61 
62 template< class TInputImage, class TOutputImage >
63 class ITK_EXPORT EdgePotentialImageFilter:
64  public
65  UnaryFunctorImageFilter< TInputImage, TOutputImage,
66  Functor::EdgePotential<
67  typename TInputImage::PixelType,
68  typename TOutputImage::PixelType > >
69 {
70 public:
73  typedef UnaryFunctorImageFilter< TInputImage, TOutputImage,
75  typename TInputImage::PixelType,
76  typename TOutputImage::PixelType >
78 
81 
83  itkNewMacro(Self);
84 
86  itkTypeMacro(EdgePotentialImageFilter,
88 
89 #ifdef ITK_USE_CONCEPT_CHECKING
90 
91  itkConceptMacro( InputHasNumericTraitsCheck,
93 
95 #endif
96 
97 protected:
100 
101 private:
102  EdgePotentialImageFilter(const Self &); //purposely not implemented
103  void operator=(const Self &); //purposely not implemented
104 };
105 } // end namespace itk
106 
107 #endif
108