NICE_VisLearning/features/simplefeatures/Codebook.h

/** 
* @file Codebook.h
* @brief feature codebook
* @author Erik Rodner
* @date 02/15/2008

*/
#ifndef CODEBOOKINCLUDE
#define CODEBOOKINCLUDE

#include <vislearning/nice.h>

#include <string>

#include "core/basics/Persistent.h"
#include "core/vector/SparseVector.h"


namespace OBJREC {

/** feature codebook */
class Codebook : public NICE::Persistent
{
    protected:
	NICE::Vector thresholds;
	NICE::Vector informativeMeasure;
	NICE::VectorT<int> classnos;

    public:
	
	/** simple destructor */
	virtual ~Codebook() {};
    
	virtual void vote ( const NICE::Vector & feature, int & codebookEntry, 
			      double & weight, double & distance ) const = 0;

	virtual void vote ( const NICE::Vector & feature, NICE::Vector & histogram, int & codebookEntry, 
			      double & weight, double & distance ) const;

	virtual void vote ( const NICE::Vector & feature, NICE::SparseVector & votes ) const;
    	
	virtual bool allowsMultipleVoting () { return false; };	
	virtual void add ( const Codebook *codebook ) = 0;
	virtual void copy ( const Codebook *codebook );
	virtual Codebook *clone () const = 0;

	size_t getCodebookSize() const { return informativeMeasure.size(); };
	void reinit ( int numCodebookEntries );

	const NICE::Vector & getThresholds () const { return thresholds; };
	const NICE::Vector & getInformativeMeasure () const { return informativeMeasure; };
	const NICE::VectorT<int> & getClassNos () const { return classnos; };
	
	void setThresholds ( const NICE::Vector & _thresholds ) { thresholds = _thresholds; };
	void setInformativeMeasure ( const NICE::Vector & _informativeMeasure ) { informativeMeasure = _informativeMeasure; };
	void setClassNos ( const NICE::VectorT<int> & _classnos ) { classnos = _classnos; };

	virtual void clear ();
	virtual void restore ( std::istream & is, int format );
	virtual void store ( std::ostream & os, int format ) const;
};


} // namespace

#endif