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vnl_least_squares_cost_function.h

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00001 #ifndef vnl_least_squares_cost_function_h_
00002 #define vnl_least_squares_cost_function_h_
00003 // This is vxl/vnl/vnl_least_squares_cost_function.h
00004 
00005 //: \file
00006 //  \brief vnl_least_squares_function -> vnl_cost_function adaptor
00007 //  \author Andrew W. Fitzgibbon, Oxford RRG, 20 Aug 99
00008 
00009 //     Modifications:
00010 //     990820 AWF Initial version.
00011 //     LSB (Manchester) 23/3/01 Tidied documentation
00012 //
00013 //-----------------------------------------------------------------------------
00014 
00015 #include <vnl/vnl_cost_function.h>
00016 #include <vnl/vnl_least_squares_function.h>
00017 
00018 //: An adaptor that converts a vnl_least_squares_function to a vnl_cost_function
00019 class vnl_least_squares_cost_function : public vnl_cost_function {
00020 public:
00021   vnl_least_squares_cost_function(vnl_least_squares_function* f);
00022 
00023   double f(const vnl_vector<double>& x);
00024 
00025   virtual void gradf(const vnl_vector<double>& x, vnl_vector<double>& gradient);
00026 
00027 protected:
00028   vnl_vector<double> storage_;
00029   vnl_matrix<double> jacobian_;
00030   vnl_least_squares_function* f_;
00031 };
00032 
00033 #endif // vnl_least_squares_cost_function_h_

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