ITK  4.4.0
Insight Segmentation and Registration Toolkit
itkSingleValuedCostFunction.h
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3  * Copyright Insight Software Consortium
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5  * Licensed under the Apache License, Version 2.0 (the "License");
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18 #ifndef __itkSingleValuedCostFunction_h
19 #define __itkSingleValuedCostFunction_h
20 
21 #include "itkCostFunction.h"
22 #include "itkNumericTraits.h"
23 
24 namespace itk
25 {
33 class ITK_EXPORT SingleValuedCostFunction:
34  public CostFunction
35 {
36 public:
42 
45 
48  typedef double MeasureType;
49 
52  typedef Superclass::ParametersType ParametersType;
53  typedef Superclass::ParametersValueType ParametersValueType;
54 
58 
61  virtual MeasureType GetValue(const ParametersType & parameters) const = 0;
62 
65  virtual void GetDerivative(const ParametersType & parameters,
66  DerivativeType & derivative) const = 0;
67 
70  virtual void GetValueAndDerivative(const ParametersType & parameters,
71  MeasureType & value,
72  DerivativeType & derivative) const
73  {
74  value = this->GetValue(parameters);
75  this->GetDerivative(parameters, derivative);
76  }
78 
79 protected:
82 
83 private:
84  SingleValuedCostFunction(const Self &); //purposely not implemented
85  void operator=(const Self &); //purposely not implemented
86 };
87 } // end namespace itk
88 
89 #endif
90