1 /*M///////////////////////////////////////////////////////////////////////////////////////
2 //
3 //  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
4 //
5 //  By downloading, copying, installing or using the software you agree to this license.
6 //  If you do not agree to this license, do not download, install,
7 //  copy or use the software.
8 //
9 //
10 //                           License Agreement
11 //                For Open Source Computer Vision Library
12 //
13 // Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
14 // Copyright (C) 2009-2012, Willow Garage Inc., all rights reserved.
15 // Third party copyrights are property of their respective owners.
16 //
17 // Redistribution and use in source and binary forms, with or without modification,
18 // are permitted provided that the following conditions are met:
19 //
20 //   * Redistribution's of source code must retain the above copyright notice,
21 //     this list of conditions and the following disclaimer.
22 //
23 //   * Redistribution's in binary form must reproduce the above copyright notice,
24 //     this list of conditions and the following disclaimer in the documentation
25 //     and/or other materials provided with the distribution.
26 //
27 //   * The name of the copyright holders may not be used to endorse or promote products
28 //     derived from this software without specific prior written permission.
29 //
30 // This software is provided by the copyright holders and contributors "as is" and
31 // any express or implied warranties, including, but not limited to, the implied
32 // warranties of merchantability and fitness for a particular purpose are disclaimed.
33 // In no event shall the Intel Corporation or contributors be liable for any direct,
34 // indirect, incidental, special, exemplary, or consequential damages
35 // (including, but not limited to, procurement of substitute goods or services;
36 // loss of use, data, or profits; or business interruption) however caused
37 // and on any theory of liability, whether in contract, strict liability,
38 // or tort (including negligence or otherwise) arising in any way out of
39 // the use of this software, even if advised of the possibility of such damage.
40 //
41 //M*/
42 
43 #ifndef __OPENCV_EMD_L1_HPP__
44 #define __OPENCV_EMD_L1_HPP__
45 
46 #include "opencv2/core.hpp"
47 
48 namespace cv
49 {
50 /****************************************************************************************\
51 *                                   EMDL1 Function                                      *
52 \****************************************************************************************/
53 
54 //! @addtogroup shape
55 //! @{
56 
57 /** @brief Computes the "minimal work" distance between two weighted point configurations base on the papers
58 "EMD-L1: An efficient and Robust Algorithm for comparing histogram-based descriptors", by Haibin
59 Ling and Kazunori Okuda; and "The Earth Mover's Distance is the Mallows Distance: Some Insights from
60 Statistics", by Elizaveta Levina and Peter Bickel.
61 
62 @param signature1 First signature, a single column floating-point matrix. Each row is the value of
63 the histogram in each bin.
64 @param signature2 Second signature of the same format and size as signature1.
65  */
66 CV_EXPORTS float EMDL1(InputArray signature1, InputArray signature2);
67 
68 //! @}
69 
70 }//namespace cv
71 
72 #endif
73