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itkSingleValuedCostFunction.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkSingleValuedCostFunction.h,v $
00005   Language:  C++
00006   Date:      $Date: 2007-03-22 21:39:38 $
00007   Version:   $Revision: 1.9 $
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 __itkSingleValuedCostFunction_h
00018 #define __itkSingleValuedCostFunction_h
00019 
00020 #include "itkCostFunction.h"
00021 #include "itkArray.h"
00022 #include "itkObjectFactory.h"
00023 #include "itkNumericTraits.h"
00024 
00025 
00026 namespace itk
00027 {
00028   
00035 class ITK_EXPORT SingleValuedCostFunction : 
00036     public CostFunction 
00037 {
00038 public:
00040   typedef SingleValuedCostFunction     Self;
00041   typedef CostFunction                 Superclass;
00042   typedef SmartPointer<Self>           Pointer;
00043   typedef SmartPointer<const Self>     ConstPointer;
00044 
00046   itkTypeMacro( SingleValuedCostFunction, CostFunction );
00047 
00050   typedef double                        MeasureType;
00051 
00054   typedef Array<double>                 DerivativeType;
00055 
00058   typedef Superclass::ParametersType         ParametersType;
00059 
00062   virtual MeasureType GetValue( const ParametersType & parameters ) const = 0;
00063 
00066   virtual void GetDerivative( const ParametersType & parameters,
00067                               DerivativeType & derivative ) const = 0;
00068 
00071   virtual void GetValueAndDerivative( const ParametersType & parameters,
00072                                       MeasureType & value,
00073                                       DerivativeType & derivative ) const 
00074     {
00075     value = this->GetValue( parameters );
00076     this->GetDerivative( parameters, derivative );
00077     }
00079 
00080 protected:
00081   SingleValuedCostFunction() {};
00082   virtual ~SingleValuedCostFunction() {};
00083 
00084 private:
00085   SingleValuedCostFunction(const Self&); //purposely not implemented
00086   void operator=(const Self&); //purposely not implemented
00087 
00088 };
00089 
00090 } // end namespace itk
00091 
00092 #endif
00093 

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