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#ifndef __OPENCV_HIST_COST_HPP__
#define __OPENCV_HIST_COST_HPP__
#include "opencv2/imgproc.hpp"
namespace cv
{
//! @addtogroup shape
//! @{
/** @brief Abstract base class for histogram cost algorithms.
*/
class CV_EXPORTS_W HistogramCostExtractor : public Algorithm
{
public:
CV_WRAP virtual void buildCostMatrix(InputArray descriptors1, InputArray descriptors2, OutputArray costMatrix) = 0;
CV_WRAP virtual void setNDummies(int nDummies) = 0;
CV_WRAP virtual int getNDummies() const = 0;
CV_WRAP virtual void setDefaultCost(float defaultCost) = 0;
CV_WRAP virtual float getDefaultCost() const = 0;
};
/** @brief A norm based cost extraction. :
*/
class CV_EXPORTS_W NormHistogramCostExtractor : public HistogramCostExtractor
{
public:
CV_WRAP virtual void setNormFlag(int flag) = 0;
CV_WRAP virtual int getNormFlag() const = 0;
};
CV_EXPORTS_W Ptr<HistogramCostExtractor>
createNormHistogramCostExtractor(int flag=DIST_L2, int nDummies=25, float defaultCost=0.2f);
/** @brief An EMD based cost extraction. :
*/
class CV_EXPORTS_W EMDHistogramCostExtractor : public HistogramCostExtractor
{
public:
CV_WRAP virtual void setNormFlag(int flag) = 0;
CV_WRAP virtual int getNormFlag() const = 0;
};
CV_EXPORTS_W Ptr<HistogramCostExtractor>
createEMDHistogramCostExtractor(int flag=DIST_L2, int nDummies=25, float defaultCost=0.2f);
/** @brief An Chi based cost extraction. :
*/
class CV_EXPORTS_W ChiHistogramCostExtractor : public HistogramCostExtractor
{};
CV_EXPORTS_W Ptr<HistogramCostExtractor> createChiHistogramCostExtractor(int nDummies=25, float defaultCost=0.2f);
/** @brief An EMD-L1 based cost extraction. :
*/
class CV_EXPORTS_W EMDL1HistogramCostExtractor : public HistogramCostExtractor
{};
CV_EXPORTS_W Ptr<HistogramCostExtractor>
createEMDL1HistogramCostExtractor(int nDummies=25, float defaultCost=0.2f);
//! @}
} // cv
#endif