/** 
* @file RFStruct.h
* @brief computes histogram over gradients for each region
* @author Björn Fröhlich
* @date 02-10-2010
*/
#ifndef RFStructINCLUDE
#define RFStructINCLUDE

#include <vislearning/nice.h>

#include "core/basics/Config.h"
#include "vislearning/cbaselib/LabeledSet.h"
#include "vislearning/segmentation/RegionGraph.h"
#include "vislearning/features/localfeatures/LocalFeature.h"
#include "vislearning/features/regionfeatures/RegionFeatures.h"

//!TODO: eventuell eine Rotationsinvariante Normierung durchführen

namespace OBJREC {

class RFStruct: public RegionFeatures
{
    protected:
		int numBins;
		bool usesigned;
		
    public:
  
	/** simple constructor */
	RFStruct( const NICE::Config *conf);

	/** simple destructor */
	virtual ~RFStruct();


	/**
	 * extracts the features for region rg (displayed in mask)
	 * @param img input image
	 * @param rg input region graph
	 * @param mask input region map
	 * @param feats output features (in order of rg)
	 * @return 
	 */
	virtual void extract ( const NICE::Image & img, const RegionGraph &rg, const NICE::Matrix &mask, NICE::VVector & feats );
        
	/**
	 * extracts the features for region rg (displayed in mask)
	 * using colorimages
	 * @param cimg input image
	 * @param rg input region graph
	 * @param mask input region map
	 * @param feats output features (in order of rg)
	 * @return 
	 */
	virtual void extractRGB ( const NICE::ColorImage & cimg, const RegionGraph &rg, const NICE::Matrix &mask, NICE::VVector & feats );
	
	/**
	 * extracts the features for region rg (displayed in mask)
	 * @param imgd_gradient allready computed gradientsmagnitudes
	 * @param imgd_graddir allready computed gradientsdirection
	 * @param rg input region graph
	 * @param mask input region map
	 * @param feats output features (in order of rg)
	 */
	virtual void extract ( const NICE::FloatImage &imgd_gradient, const NICE::Image &imgd_graddir, const RegionGraph &rg, const NICE::Matrix &mask, NICE::VVector & feats );
};

} // namespace

#endif