ITK  4.2.0
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
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 __itkSigmoidTransferFunction_h
19 #define __itkSigmoidTransferFunction_h
20 
22 
23 namespace itk
24 {
25 namespace Statistics
26 {
33 template<class ScalarType>
35 {
36 
37 public:
38 
44 
47 
49  itkNewMacro(Self);
50 
52  itkSetMacro(Alpha,ScalarType);
53  itkGetMacro(Alpha,ScalarType);
54  itkSetMacro(Beta,ScalarType);
55  itkGetMacro(Beta,ScalarType);
56  itkSetMacro(OutputMinimum,ScalarType);
57  itkGetMacro(OutputMinimum,ScalarType);
58  itkSetMacro(OutputMaximum,ScalarType);
59  itkGetMacro(OutputMaximum,ScalarType);
61 
63  virtual ScalarType Evaluate(const ScalarType& input) const;
64 
66  virtual ScalarType EvaluateDerivative(const ScalarType& input) const;
67 
68 protected:
69 
71  virtual ~SigmoidTransferFunction();
72 
74  virtual void PrintSelf( std::ostream& os, Indent indent ) const;
75 
76 private:
77 
78  ScalarType m_Alpha;
79  ScalarType m_Beta;
80  ScalarType m_OutputMinimum;
81  ScalarType m_OutputMaximum;
82 };
83 
84 } // end namespace Statistics
85 } // end namespace itk
86 
87 #ifndef ITK_MANUAL_INSTANTIATION
88  #include "itkSigmoidTransferFunction.hxx"
89 #endif
90 
91 #endif
92