ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkCovarianceImageFunction.h
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5  * Licensed under the Apache License, Version 2.0 (the "License");
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14  * See the License for the specific language governing permissions and
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18 #ifndef __itkCovarianceImageFunction_h
19 #define __itkCovarianceImageFunction_h
20 
21 #include "itkImageFunction.h"
22 #include "itkNumericTraits.h"
23 
24 namespace itk
25 {
44 template< class TInputImage, class TCoordRep = float >
45 class ITK_EXPORT CovarianceImageFunction:
46  public ImageFunction< TInputImage,
47  vnl_matrix<
48  typename NumericTraits< typename TInputImage::PixelType::ValueType >::RealType >,
49  TCoordRep >
50 {
51 public:
52 
55  typedef ImageFunction< TInputImage,
56  vnl_matrix<
58  TCoordRep > Superclass;
59 
62 
65 
67  itkNewMacro(Self);
68 
70  typedef TInputImage InputImageType;
71 
73  typedef typename Superclass::OutputType OutputType;
74 
76  typedef typename Superclass::IndexType IndexType;
77 
79  typedef typename Superclass::ContinuousIndexType ContinuousIndexType;
80 
82  typedef typename Superclass::PointType PointType;
83 
85  itkStaticConstMacro(ImageDimension, unsigned int,
86  InputImageType::ImageDimension);
87 
89  typedef vnl_matrix<
92 
94  virtual RealType EvaluateAtIndex(const IndexType & index) const;
95 
97  virtual RealType Evaluate(const PointType & point) const
98  {
99  IndexType index;
100 
101  this->ConvertPointToNearestIndex(point, index);
102  return this->EvaluateAtIndex(index);
103  }
104 
105  virtual RealType EvaluateAtContinuousIndex(
106  const ContinuousIndexType & cindex) const
107  {
108  IndexType index;
109 
110  this->ConvertContinuousIndexToNearestIndex(cindex, index);
111  return this->EvaluateAtIndex(index);
112  }
113 
116  itkSetMacro(NeighborhoodRadius, unsigned int);
117  itkGetConstReferenceMacro(NeighborhoodRadius, unsigned int);
118 protected:
121  void PrintSelf(std::ostream & os, Indent indent) const;
123 
124 private:
125  CovarianceImageFunction(const Self &); //purposely not implemented
126  void operator=(const Self &); //purposely not implemented
127 
128  unsigned int m_NeighborhoodRadius;
129 };
130 } // end namespace itk
131 
132 // Define instantiation macro for this template.
133 #define ITK_TEMPLATE_CovarianceImageFunction(_, EXPORT, TypeX, TypeY) \
134  namespace itk \
135  { \
136  _( 2 ( class EXPORT CovarianceImageFunction< ITK_TEMPLATE_2 TypeX > ) ) \
137  namespace Templates \
138  { \
139  typedef CovarianceImageFunction< ITK_TEMPLATE_2 TypeX > \
140  CovarianceImageFunction##TypeY; \
141  } \
142  }
143 
144 #if ITK_TEMPLATE_EXPLICIT
145 #include "Templates/itkCovarianceImageFunction+-.h"
146 #endif
147 
148 #if ITK_TEMPLATE_TXX
149 #include "itkCovarianceImageFunction.hxx"
150 #endif
151 
152 #endif
153