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itkSingleValuedVnlCostFunctionAdaptor.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkSingleValuedVnlCostFunctionAdaptor.h,v $
00005   Language:  C++
00006   Date:      $Date: 2004/03/14 20:04:00 $
00007   Version:   $Revision: 1.4 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 #ifndef __itkSingleValuedVnlCostFunctionAdaptor_h
00018 #define __itkSingleValuedVnlCostFunctionAdaptor_h
00019 
00020 #include "itkSingleValuedCostFunction.h"
00021 #include "vnl/vnl_cost_function.h"
00022 
00023 
00024 namespace itk
00025 {
00026   
00036 class SingleValuedVnlCostFunctionAdaptor : 
00037     public vnl_cost_function
00038 {
00039 public:
00040 
00042   typedef   vnl_vector<double>     InternalParametersType;
00043 
00045   typedef   double                 InternalMeasureType;
00046 
00048   typedef   vnl_vector<double>     InternalDerivativeType;
00049 
00051   typedef SingleValuedCostFunction::ParametersType ParametersType;
00052 
00054   typedef SingleValuedCostFunction::DerivativeType DerivativeType;
00055 
00057   typedef Array<double>             ScalesType;
00058 
00060   SingleValuedVnlCostFunctionAdaptor(unsigned int spaceDimension);
00061 
00063   void SetCostFunction( SingleValuedCostFunction * costFunction )
00064   { m_CostFunction = costFunction; }
00065     
00067   const SingleValuedCostFunction * GetCostFunction( void ) const
00068   { return m_CostFunction; }
00069     
00071   virtual InternalMeasureType f( const InternalParametersType & inparameters );
00072     
00074   virtual void gradf(const InternalParametersType   & inparameters,
00075                      InternalDerivativeType   & gradient );
00076     
00078   virtual void compute(const InternalParametersType   & x,
00079                        InternalMeasureType      * f, 
00080                        InternalDerivativeType   * g   );
00081     
00083   void ConvertExternalToInternalGradient(
00084     const DerivativeType         & input,
00085     InternalDerivativeType & output );
00086 
00088   void SetScales(const ScalesType & scales);
00089 
00090 private:
00091 
00092   SingleValuedCostFunction::Pointer   m_CostFunction;
00093   bool                    m_ScalesInitialized;
00094   ScalesType              m_Scales;
00095 
00096 };  // end of Class CostFunction
00097 
00098     
00099 } // end namespace itk
00100 
00101 
00102 #endif
00103 
00104 
00105 

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