ITK  4.3.0
Insight Segmentation and Registration Toolkit
itkMedianImageFunction.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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11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
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14  * See the License for the specific language governing permissions and
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16  *
17  *=========================================================================*/
18 #ifndef __itkMedianImageFunction_h
19 #define __itkMedianImageFunction_h
20 
21 #include "itkImageFunction.h"
22 #include "itkNumericTraits.h"
23 
24 namespace itk
25 {
46 template< class TInputImage, class TCoordRep = float >
47 class ITK_EXPORT MedianImageFunction:
48  public ImageFunction< TInputImage, typename TInputImage::PixelType,
49  TCoordRep >
50 {
51 public:
52 
55  typedef ImageFunction< TInputImage, typename TInputImage::PixelType,
56  TCoordRep > Superclass;
57 
60 
62  itkTypeMacro(MedianImageFunction, ImageFunction);
63 
65  itkNewMacro(Self);
66 
68  typedef TInputImage InputImageType;
69  typedef typename Superclass::InputPixelType InputPixelType;
70 
72  typedef typename Superclass::OutputType OutputType;
73 
75  typedef typename Superclass::IndexType IndexType;
76 
78  typedef typename Superclass::ContinuousIndexType ContinuousIndexType;
79 
81  typedef typename Superclass::PointType PointType;
82 
84  itkStaticConstMacro(ImageDimension, unsigned int,
85  InputImageType::ImageDimension);
86 
88  virtual OutputType EvaluateAtIndex(const IndexType & index) const;
89 
91  virtual OutputType Evaluate(const PointType & point) const
92  {
93  IndexType index;
94 
95  this->ConvertPointToNearestIndex(point, index);
96  return this->EvaluateAtIndex(index);
97  }
98 
99  virtual OutputType EvaluateAtContinuousIndex(
100  const ContinuousIndexType & cindex) const
101  {
102  IndexType index;
103 
104  this->ConvertContinuousIndexToNearestIndex(cindex, index);
105  return this->EvaluateAtIndex(index);
106  }
107 
110  itkSetMacro( NeighborhoodRadius, unsigned int );
111  itkGetConstReferenceMacro( NeighborhoodRadius, unsigned int );
113 
114 protected:
117  void PrintSelf(std::ostream & os, Indent indent) const;
118 
119 private:
120  MedianImageFunction(const Self &); //purposely not implemented
121  void operator=(const Self &); //purposely not implemented
122 
123  unsigned int m_NeighborhoodRadius;
124 
125 };
126 } // end namespace itk
127 
128 #ifndef ITK_MANUAL_INSTANTIATION
129 #include "itkMedianImageFunction.hxx"
130 #endif
131 
132 #endif
133