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/* -*- mode: c++ -*-
*/
/*
GIFT, a flexible content based image retrieval system.
Copyright (C) 1998, 1999, 2000, 2001, 2002, CUI University of Geneva
Copyright (C) 2003, 2004 Bayreuth University
2005 Bamberg University
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 _CINFORMATIONCALCULATOR
#define _CINFORMATIONCALCULATOR
#include "libGIFTAcDistanceMatrix/include/uses-declarations.h"
#include <cmath>
#include <functional>
class CInformationCalculator:public unary_function<double,double>{
public:
///really applying this function
virtual double operator()(double)const=0;
///
virtual void startFirstPass();
///
virtual bool isOnePass()const;
///
virtual void adjustInnerState(double);
///Cloning
CInformationCalculator* clone()const;
///
virtual CInformationCalculator* subClone()const=0;
};
//
class CICEntropy:public CInformationCalculator{
public:
///
virtual double operator()(double)const;
///
virtual CInformationCalculator* subClone()const;
};
//
class CICEntropyWithThreshold:public CInformationCalculator{
///
double mMaximum;
///
double mThreshold;
public:
///
CICEntropyWithThreshold(double inThreshold=1.0);
///
CICEntropyWithThreshold(const CICEntropyWithThreshold&
in);
///
void setThreshold(double inThreshold);
///
virtual bool isOnePass()const;
///
virtual void startFirstPass();
///
virtual void adjustInnerState(double);
///
virtual double operator()(double)const;
///
virtual CInformationCalculator* subClone()const;
};
//
class CICERelative:public CInformationCalculator{
///
double mSum;
///
double mThreshold;
public:
///
CICERelative(double inThreshold=1.0);
///
CICERelative(const CICERelative&
in);
///
void setThreshold(double inThreshold);
///
virtual bool isOnePass()const;
///
virtual void startFirstPass();
///
virtual void adjustInnerState(double);
///
virtual double operator()(double)const;
///
virtual CInformationCalculator* subClone()const;
};
class CICSum:public CInformationCalculator{
public:
virtual double operator()(double)const;
virtual CInformationCalculator* subClone()const;
};
#endif
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