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#ifndef __OPENCV_EMD_L1_HPP__
#define __OPENCV_EMD_L1_HPP__

#include "opencv2/core.hpp"

namespace cv
{
/****************************************************************************************\
*                                   EMDL1 Function                                      *
\****************************************************************************************/

//! @addtogroup shape
//! @{

/** @brief Computes the "minimal work" distance between two weighted point configurations base on the papers
"EMD-L1: An efficient and Robust Algorithm for comparing histogram-based descriptors", by Haibin
Ling and Kazunori Okuda; and "The Earth Mover's Distance is the Mallows Distance: Some Insights from
Statistics", by Elizaveta Levina and Peter Bickel.

@param signature1 First signature, a single column floating-point matrix. Each row is the value of
the histogram in each bin.
@param signature2 Second signature of the same format and size as signature1.
 */
CV_EXPORTS float EMDL1(InputArray signature1, InputArray signature2);

//! @}

}//namespace cv

#endif
