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Open Source Computer Vision Library
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185 lines
5.5 KiB
185 lines
5.5 KiB
/*M/////////////////////////////////////////////////////////////////////////////////////// |
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// |
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. |
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// |
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// By downloading, copying, installing or using the software you agree to this license. |
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// If you do not agree to this license, do not download, install, |
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// copy or use the software. |
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// |
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// |
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// Intel License Agreement |
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// For Open Source Computer Vision Library |
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// |
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// Copyright (C) 2000, Intel Corporation, all rights reserved. |
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// Third party copyrights are property of their respective owners. |
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// |
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// Redistribution and use in source and binary forms, with or without modification, |
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// are permitted provided that the following conditions are met: |
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// |
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// * Redistribution's of source code must retain the above copyright notice, |
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// this list of conditions and the following disclaimer. |
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// |
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// * Redistribution's in binary form must reproduce the above copyright notice, |
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// this list of conditions and the following disclaimer in the documentation |
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// and/or other materials provided with the distribution. |
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// |
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// * The name of Intel Corporation may not be used to endorse or promote products |
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// derived from this software without specific prior written permission. |
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// |
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// This software is provided by the copyright holders and contributors "as is" and |
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// any express or implied warranties, including, but not limited to, the implied |
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// warranties of merchantability and fitness for a particular purpose are disclaimed. |
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// In no event shall the Intel Corporation or contributors be liable for any direct, |
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// indirect, incidental, special, exemplary, or consequential damages |
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// (including, but not limited to, procurement of substitute goods or services; |
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// loss of use, data, or profits; or business interruption) however caused |
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// and on any theory of liability, whether in contract, strict liability, |
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// or tort (including negligence or otherwise) arising in any way out of |
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// the use of this software, even if advised of the possibility of such damage. |
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// |
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//M*/ |
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#include "precomp.hpp" |
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double cv::matchShapes(InputArray contour1, InputArray contour2, int method, double) |
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{ |
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CV_INSTRUMENT_REGION(); |
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double ma[7], mb[7]; |
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int i, sma, smb; |
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double eps = 1.e-5; |
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double mmm; |
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double result = 0; |
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bool anyA = false, anyB = false; |
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HuMoments( moments(contour1), ma ); |
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HuMoments( moments(contour2), mb ); |
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switch (method) |
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{ |
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case 1: |
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for( i = 0; i < 7; i++ ) |
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{ |
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double ama = fabs( ma[i] ); |
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double amb = fabs( mb[i] ); |
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if (ama > 0) |
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anyA = true; |
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if (amb > 0) |
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anyB = true; |
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if( ma[i] > 0 ) |
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sma = 1; |
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else if( ma[i] < 0 ) |
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sma = -1; |
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else |
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sma = 0; |
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if( mb[i] > 0 ) |
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smb = 1; |
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else if( mb[i] < 0 ) |
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smb = -1; |
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else |
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smb = 0; |
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if( ama > eps && amb > eps ) |
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{ |
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ama = 1. / (sma * log10( ama )); |
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amb = 1. / (smb * log10( amb )); |
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result += fabs( -ama + amb ); |
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} |
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} |
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break; |
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case 2: |
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for( i = 0; i < 7; i++ ) |
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{ |
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double ama = fabs( ma[i] ); |
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double amb = fabs( mb[i] ); |
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if (ama > 0) |
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anyA = true; |
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if (amb > 0) |
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anyB = true; |
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if( ma[i] > 0 ) |
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sma = 1; |
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else if( ma[i] < 0 ) |
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sma = -1; |
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else |
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sma = 0; |
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if( mb[i] > 0 ) |
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smb = 1; |
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else if( mb[i] < 0 ) |
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smb = -1; |
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else |
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smb = 0; |
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if( ama > eps && amb > eps ) |
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{ |
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ama = sma * log10( ama ); |
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amb = smb * log10( amb ); |
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result += fabs( -ama + amb ); |
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} |
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} |
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break; |
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case 3: |
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for( i = 0; i < 7; i++ ) |
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{ |
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double ama = fabs( ma[i] ); |
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double amb = fabs( mb[i] ); |
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if (ama > 0) |
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anyA = true; |
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if (amb > 0) |
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anyB = true; |
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if( ma[i] > 0 ) |
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sma = 1; |
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else if( ma[i] < 0 ) |
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sma = -1; |
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else |
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sma = 0; |
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if( mb[i] > 0 ) |
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smb = 1; |
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else if( mb[i] < 0 ) |
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smb = -1; |
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else |
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smb = 0; |
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if( ama > eps && amb > eps ) |
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{ |
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ama = sma * log10( ama ); |
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amb = smb * log10( amb ); |
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mmm = fabs( (ama - amb) / ama ); |
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if( result < mmm ) |
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result = mmm; |
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} |
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} |
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break; |
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default: |
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CV_Error( CV_StsBadArg, "Unknown comparison method" ); |
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} |
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//If anyA and anyB are both true, the result is correct. |
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//If anyA and anyB are both false, the distance is 0, perfect match. |
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//If only one is true, then it's a false 0 and return large error. |
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if (anyA != anyB) |
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result = DBL_MAX; |
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return result; |
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} |
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CV_IMPL double |
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cvMatchShapes( const void* _contour1, const void* _contour2, |
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int method, double parameter ) |
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{ |
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cv::AutoBuffer<double> abuf1, abuf2; |
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cv::Mat contour1 = cv::cvarrToMat(_contour1, false, false, 0, &abuf1); |
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cv::Mat contour2 = cv::cvarrToMat(_contour2, false, false, 0, &abuf2); |
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return cv::matchShapes(contour1, contour2, method, parameter); |
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} |
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/* End of file. */
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