autoDoc/HTML/---libBayesian-include-CProbabilityCombiner-h

    /* -*- mode: c++ -*-
    */
    /*

        GIFT, a flexible content based image retrieval system.
        Copyright (C) 1998, 1999, 2000 CUI, University of Geneva

        This program is free software; you can redistribute it and/or modify
        it under the terms of the GNU General Public License as published by
        the Free Software Foundation; either version 2 of the License, or
        (at your option) any later version.

        This program is distributed in the hope that it will be useful,
        but WITHOUT ANY WARRANTY; without even the implied warranty of
        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        GNU General Public License for more details.

        You should have received a copy of the GNU General Public License
        along with this program; if not, write to the Free Software
        Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    */
    #ifndef _CPROBABILITYCOMBINER
    #define _CPROBABILITYCOMBINER

    #include <functional>
    #include <assert.h>

    class CProbabilityCombiner:public binary_function<double,double,double>{
      double mBelief;
      int    mNumberOfElements;
    public:
      CProbabilityCombiner();
      virtual void setBelief(double inBelief=1);
      virtual void setNumberOfElements(int inNumberOfElements=1);
      virtual double perform(double,
    			 double)const=0;
      virtual double operator()(double,
    			    double)const;
      CProbabilityCombiner* clone()const;
      virtual CProbabilityCombiner* subClone()const=0;
    };

    class CPCMaximum:public CProbabilityCombiner{
    public:
      virtual double perform(double,double)const;
      virtual CProbabilityCombiner* subClone()const;
    };

    class CPCMinimum:public CProbabilityCombiner{
    public:
      virtual double perform(double,double)const;
      virtual CProbabilityCombiner* subClone()const;
    };

    class CPCProduct:public CProbabilityCombiner{
     public:
      virtual double perform(double,double)const;
      virtual CProbabilityCombiner* subClone()const;
    };

    class CPCDiscrete:public CProbabilityCombiner{
      double lThreshold;
     public:
      virtual double perform(double,double)const;
      virtual CProbabilityCombiner* subClone()const;
    };

    #endif