ITK  4.3.0
Insight Segmentation and Registration Toolkit
itkSigmoidTransferFunction.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
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14  * See the License for the specific language governing permissions and
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16  *
17  *=========================================================================*/
18 #ifndef __itkSigmoidTransferFunction_h
19 #define __itkSigmoidTransferFunction_h
20 
22 
23 namespace itk
24 {
25 namespace Statistics
26 {
33 template<class ScalarType>
35 {
36 public:
37 
43 
46 
48  itkNewMacro(Self);
49 
51  itkSetMacro(Alpha,ScalarType);
52  itkGetMacro(Alpha,ScalarType);
53  itkSetMacro(Beta,ScalarType);
54  itkGetMacro(Beta,ScalarType);
55  itkSetMacro(OutputMinimum,ScalarType);
56  itkGetMacro(OutputMinimum,ScalarType);
57  itkSetMacro(OutputMaximum,ScalarType);
58  itkGetMacro(OutputMaximum,ScalarType);
60 
62  virtual ScalarType Evaluate(const ScalarType& input) const;
63 
65  virtual ScalarType EvaluateDerivative(const ScalarType& input) const;
66 
67 protected:
68 
70  virtual ~SigmoidTransferFunction();
71 
73  virtual void PrintSelf( std::ostream& os, Indent indent ) const;
74 
75 private:
76 
77  ScalarType m_Alpha;
78  ScalarType m_Beta;
79  ScalarType m_OutputMinimum;
80  ScalarType m_OutputMaximum;
81 };
82 
83 } // end namespace Statistics
84 } // end namespace itk
85 
86 #ifndef ITK_MANUAL_INSTANTIATION
87  #include "itkSigmoidTransferFunction.hxx"
88 #endif
89 
90 #endif
91