NICE_VisLearning/features/fpfeatures/ColorHistogramFeature.h

/** 
* @file ColorHistogramFeature.h
* @brief simple color histograms
* @author Erik Rodner
* @date 26/08/2008

*/
#ifndef ColorHistogramFeatureINCLUDE
#define ColorHistogramFeatureINCLUDE

#ifdef NOVISUAL
#include <vislearning/nice_nonvis.h>
#else
#include <vislearning/nice.h>
#endif
 
#include "core/basics/Config.h"
#include "vislearning/cbaselib/Feature.h"


namespace OBJREC {

/** simple color histograms */
class ColorHistogramFeature : public Feature
{

    protected:

	/** @{ feature parameter */
	int window_size_x;
	int window_size_y;

	int bin;
	/** @} */

	/** @{ parameter for feature generation */
	int numScales;
	int numBins;
	double scaleStep;
	/** @} */

    public:
  
	/** simple constructor */
	ColorHistogramFeature( const NICE::Config *conf );

	/** internally used by ColorHistogramFeature::explode */
	ColorHistogramFeature () {};
      
	/** simple destructor */
	virtual ~ColorHistogramFeature();
     
	double val( const Example *example ) const;
	void explode ( FeaturePool & featurePool, bool variableWindow = true ) const;
	Feature *clone() const;
	Feature *generateFirstParameter () const;

	void restore (std::istream & is, int format = 0);
	void store (std::ostream & os, int format = 0) const;
	void clear ();
};




} // namespace

#endif