ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkSqrtImageAdaptor.h
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5  * Licensed under the Apache License, Version 2.0 (the "License");
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18 #ifndef __itkSqrtImageAdaptor_h
19 #define __itkSqrtImageAdaptor_h
20 
21 #include "itkImageAdaptor.h"
22 #include "vnl/vnl_math.h"
23 
24 namespace itk
25 {
26 namespace Accessor
27 {
39 template< class TInternalType, class TExternalType >
40 class ITK_EXPORT SqrtPixelAccessor
41 {
42 public:
45  typedef TExternalType ExternalType;
46 
49  typedef TInternalType InternalType;
50 
51  static inline void Set(TInternalType & output, const TExternalType & input)
52  { output = (TInternalType)vcl_sqrt( (double)input ); }
53 
54  static inline TExternalType Get(const TInternalType & input)
55  { return (TExternalType)vcl_sqrt( (double)input ); }
56 };
57 } // end namespace Accessor
58 
68 template< class TImage, class TOutputPixelType >
69 class ITK_EXPORT SqrtImageAdaptor:public
70  ImageAdaptor< TImage, Accessor::SqrtPixelAccessor<
71  typename TImage::PixelType,
72  TOutputPixelType > >
73 {
74 public:
78  typename TImage::PixelType,
79  TOutputPixelType > > Superclass;
80 
83 
85  itkNewMacro(Self);
86 
88  itkTypeMacro(SqrtImageAdaptor, ImageAdaptor);
89 protected:
91  virtual ~SqrtImageAdaptor() {}
92 private:
93  SqrtImageAdaptor(const Self &); //purposely not implemented
94  void operator=(const Self &); //purposely not implemented
95 };
96 } // end namespace itk
98 
99 #endif
100