1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// Intel License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000, Intel Corporation, all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of Intel Corporation may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#include "precomp.hpp"
/*F///////////////////////////////////////////////////////////////////////////////////////
// Name: cvMatchContours
// Purpose:
// Calculates matching of the two contours
// Context:
// Parameters:
// contour_1 - pointer to the first input contour object.
// contour_2 - pointer to the second input contour object.
// method - method for the matching calculation
// (now CV_IPPI_CONTOURS_MATCH_I1, CV_CONTOURS_MATCH_I2 or
// CV_CONTOURS_MATCH_I3 only )
// rezult - output calculated measure
//
//F*/
CV_IMPL double
cvMatchShapes( const void* contour1, const void* contour2,
int method, double /*parameter*/ )
{
CvMoments moments;
CvHuMoments huMoments;
double ma[7], mb[7];
int i, sma, smb;
double eps = 1.e-5;
double mmm;
double result = 0;
if( !contour1 || !contour2 )
CV_Error( CV_StsNullPtr, "" );
// calculate moments of the first shape
cvMoments( contour1, &moments );
cvGetHuMoments( &moments, &huMoments );
ma[0] = huMoments.hu1;
ma[1] = huMoments.hu2;
ma[2] = huMoments.hu3;
ma[3] = huMoments.hu4;
ma[4] = huMoments.hu5;
ma[5] = huMoments.hu6;
ma[6] = huMoments.hu7;
// calculate moments of the second shape
cvMoments( contour2, &moments );
cvGetHuMoments( &moments, &huMoments );
mb[0] = huMoments.hu1;
mb[1] = huMoments.hu2;
mb[2] = huMoments.hu3;
mb[3] = huMoments.hu4;
mb[4] = huMoments.hu5;
mb[5] = huMoments.hu6;
mb[6] = huMoments.hu7;
switch (method)
{
case 1:
{
for( i = 0; i < 7; i++ )
{
double ama = fabs( ma[i] );
double amb = fabs( mb[i] );
if( ma[i] > 0 )
sma = 1;
else if( ma[i] < 0 )
sma = -1;
else
sma = 0;
if( mb[i] > 0 )
smb = 1;
else if( mb[i] < 0 )
smb = -1;
else
smb = 0;
if( ama > eps && amb > eps )
{
ama = 1. / (sma * log10( ama ));
amb = 1. / (smb * log10( amb ));
result += fabs( -ama + amb );
}
}
break;
}
case 2:
{
for( i = 0; i < 7; i++ )
{
double ama = fabs( ma[i] );
double amb = fabs( mb[i] );
if( ma[i] > 0 )
sma = 1;
else if( ma[i] < 0 )
sma = -1;
else
sma = 0;
if( mb[i] > 0 )
smb = 1;
else if( mb[i] < 0 )
smb = -1;
else
smb = 0;
if( ama > eps && amb > eps )
{
ama = sma * log10( ama );
amb = smb * log10( amb );
result += fabs( -ama + amb );
}
}
break;
}
case 3:
{
for( i = 0; i < 7; i++ )
{
double ama = fabs( ma[i] );
double amb = fabs( mb[i] );
if( ma[i] > 0 )
sma = 1;
else if( ma[i] < 0 )
sma = -1;
else
sma = 0;
if( mb[i] > 0 )
smb = 1;
else if( mb[i] < 0 )
smb = -1;
else
smb = 0;
if( ama > eps && amb > eps )
{
ama = sma * log10( ama );
amb = smb * log10( amb );
mmm = fabs( (ama - amb) / ama );
if( result < mmm )
result = mmm;
}
}
break;
}
default:
CV_Error( CV_StsBadArg, "Unknown comparison method" );
}
return result;
}
/* End of file. */