ITK  4.2.0
Insight Segmentation and Registration Toolkit
itkLBFGSOptimizer.h
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18 #ifndef __itkLBFGSOptimizer_h
19 #define __itkLBFGSOptimizer_h
20 
22 #include "vnl/algo/vnl_lbfgs.h"
23 
24 namespace itk
25 {
32 class ITK_EXPORT LBFGSOptimizer:
34 {
35 public:
41 
43  itkNewMacro(Self);
44 
47 
50 
52  typedef vnl_lbfgs InternalOptimizerType;
53 
55  vnl_lbfgs * GetOptimizer(void);
56 
58  void StartOptimization(void);
59 
61  virtual void SetCostFunction(SingleValuedCostFunction *costFunction);
62 
66  virtual void SetTrace(bool flag);
67 
68  itkGetMacro(Trace, bool);
69  itkBooleanMacro(Trace);
70 
72  virtual void SetMaximumNumberOfFunctionEvaluations(unsigned int n);
73 
74  itkGetMacro(MaximumNumberOfFunctionEvaluations, unsigned int);
75 
81  virtual void SetGradientConvergenceTolerance(double gtol);
82 
83  itkGetMacro(GradientConvergenceTolerance, double);
84 
91  virtual void SetLineSearchAccuracy(double tol);
92 
93  itkGetMacro(LineSearchAccuracy, double);
94 
99  virtual void SetDefaultStepLength(double stp);
100 
101  itkGetMacro(DefaultStepLength, double);
102 
104  MeasureType GetValue() const;
105 
107  const std::string GetStopConditionDescription() const;
108 
109 protected:
110  LBFGSOptimizer();
111  virtual ~LBFGSOptimizer();
112  void PrintSelf(std::ostream & os, Indent indent) const;
113 
114  typedef Superclass::CostFunctionAdaptorType CostFunctionAdaptorType;
115 private:
116  LBFGSOptimizer(const Self &); //purposely not implemented
117  void operator=(const Self &); //purposely not implemented
118 
121  mutable std::ostringstream m_StopConditionDescription;
122 
123  bool m_Trace;
128 };
129 } // end namespace itk
130 
131 #endif
132