ITK  4.4.0
Insight Segmentation and Registration Toolkit
itkLogImageAdaptor.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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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
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17  *=========================================================================*/
18 #ifndef __itkLogImageAdaptor_h
19 #define __itkLogImageAdaptor_h
20 
21 #include "itkImageAdaptor.h"
22 #include "vnl/vnl_math.h"
23 
24 namespace itk
25 {
26 namespace Accessor
27 {
40 template< class TInternalType, class TExternalType >
41 class ITK_EXPORT LogPixelAccessor
42 {
43 public:
46  typedef TExternalType ExternalType;
47 
50  typedef TInternalType InternalType;
51 
52  static inline void Set(TInternalType & output, const TExternalType & input)
53  { output = (TInternalType)vcl_log( (double)input ); }
54 
55  static inline TExternalType Get(const TInternalType & input)
56  { return (TExternalType)vcl_log( (double)input ); }
57 };
58 } // end namespace Accessor
59 
69 template< class TImage, class TOutputPixelType >
70 class ITK_EXPORT LogImageAdaptor:public
71  ImageAdaptor< TImage,
72  Accessor::LogPixelAccessor<
73  typename TImage::PixelType,
74  TOutputPixelType > >
75 {
76 public:
79  typedef ImageAdaptor< TImage,
81  typename TImage::PixelType,
82  TOutputPixelType > > Superclass;
83 
86 
88  itkTypeMacro(LogImageAdaptor, ImageAdaptor);
89 
91  itkNewMacro(Self);
92 
93 protected:
95  virtual ~LogImageAdaptor() {}
96 
97 private:
98  LogImageAdaptor(const Self &); //purposely not implemented
99  void operator=(const Self &); //purposely not implemented
100 };
101 } // end namespace itk
102 
103 #endif
104