ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkMeanImageFunction.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
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16  *
17  *=========================================================================*/
18 #ifndef __itkMeanImageFunction_h
19 #define __itkMeanImageFunction_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 MeanImageFunction:
46  public ImageFunction< TInputImage,
47  typename NumericTraits< typename TInputImage::PixelType >::RealType,
48  TCoordRep >
49 {
50 public:
51 
54  typedef ImageFunction< TInputImage,
56  TCoordRep > Superclass;
57 
60 
62  itkTypeMacro(MeanImageFunction, ImageFunction);
63 
65  itkNewMacro(Self);
66 
68  typedef TInputImage InputImageType;
69 
71  typedef typename Superclass::OutputType OutputType;
72 
74  typedef typename Superclass::IndexType IndexType;
75 
77  typedef typename Superclass::ContinuousIndexType ContinuousIndexType;
78 
80  typedef typename Superclass::PointType PointType;
81 
83  itkStaticConstMacro(ImageDimension, unsigned int,
84  InputImageType::ImageDimension);
85 
89 
91  virtual RealType EvaluateAtIndex(const IndexType & index) const;
92 
94  virtual RealType Evaluate(const PointType & point) const
95  {
96  IndexType index;
97 
98  this->ConvertPointToNearestIndex(point, index);
99  return this->EvaluateAtIndex(index);
100  }
101 
102  virtual RealType EvaluateAtContinuousIndex(
103  const ContinuousIndexType & cindex) const
104  {
105  IndexType index;
106 
107  this->ConvertContinuousIndexToNearestIndex(cindex, index);
108  return this->EvaluateAtIndex(index);
109  }
110 
113  itkSetMacro(NeighborhoodRadius, unsigned int);
114  itkGetConstReferenceMacro(NeighborhoodRadius, unsigned int);
115 protected:
118  void PrintSelf(std::ostream & os, Indent indent) const;
120 
121 private:
122  MeanImageFunction(const Self &); //purposely not implemented
123  void operator=(const Self &); //purposely not implemented
124 
125  unsigned int m_NeighborhoodRadius;
126 };
127 } // end namespace itk
128 
129 // Define instantiation macro for this template.
130 #define ITK_TEMPLATE_MeanImageFunction(_, EXPORT, TypeX, TypeY) \
131  namespace itk \
132  { \
133  _( 2 ( class EXPORT MeanImageFunction< ITK_TEMPLATE_2 TypeX > ) ) \
134  namespace Templates \
135  { \
136  typedef MeanImageFunction< ITK_TEMPLATE_2 TypeX > \
137  MeanImageFunction##TypeY; \
138  } \
139  }
140 
141 #if ITK_TEMPLATE_EXPLICIT
142 #include "Templates/itkMeanImageFunction+-.h"
143 #endif
144 
145 #if ITK_TEMPLATE_TXX
146 #include "itkMeanImageFunction.hxx"
147 #endif
148 
149 #endif
150