/** 
 * @file InterestDetector.h
 * @brief interest detector interface
 * @author Erik Rodner
 * @date 02/05/2008

 */
#ifndef INTERESTDETECTORINCLUDE
#define INTERESTDETECTORINCLUDE

#include "core/vector/VectorT.h"
#include "core/vector/MatrixT.h"
#include "core/image/ImageT.h"

#include "vislearning/image/ImagePyramid.h"

namespace OBJREC
{

/** interest detector interface */
class InterestDetector
{

protected:

public:

	/** simple constructor */
	InterestDetector();

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

	virtual int getInterests(const NICE::Image & img,
			std::vector<NICE::Vector> & positions) const = 0;
	virtual int getInterests(const ImagePyramid & imp,
			std::vector<NICE::Vector> & positions) const = 0;
	inline void getRandomInterests(const NICE::Image & img, std::vector<
			NICE::Vector> & positions, size_t numsamples) const
	{
		getInterests(img, positions);
		reducePositionsRandom(positions, numsamples);
	}
	inline void getRandomInterests(const ImagePyramid & imp, std::vector<
			NICE::Vector> & positions, size_t numsamples) const
	{
		getInterests(imp, positions);
		reducePositionsRandom(positions, numsamples);
	}
private:
	void reducePositionsRandom(std::vector<NICE::Vector> & positions,
			size_t numsamples) const;
};

} // namespace

#endif