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Open Source Computer Vision Library
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163 lines
5.7 KiB
163 lines
5.7 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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#include "_vm.h" |
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/* Valery Mosyagin */ |
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static CvStatus |
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icvFindRuns( int numLines, /* number of scanlines */ |
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uchar * prewarp_1, /* prewarp image 1 */ |
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uchar * prewarp_2, /* prewarp image 2 */ |
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int *line_lens_1, /* line lengths 1 */ |
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int *line_lens_2, /* line lengths 2 */ |
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int *runs_1, /* result runs 1 */ |
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int *runs_2, /* result runs 2 */ |
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int *num_runs_1, /* numbers of first runs */ |
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int *num_runs_2 ) |
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{ |
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CvStatus err; |
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err = icvFindRunsInOneImage( numLines, prewarp_1, line_lens_1, runs_1, num_runs_1 ); |
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if( err != CV_NO_ERR ) |
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return err; |
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err = icvFindRunsInOneImage( numLines, prewarp_2, line_lens_2, runs_2, num_runs_2 ); |
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return err; |
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} |
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/*======================================================================================*/ |
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CV_INLINE int |
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icvGetColor( uchar * valueRGB ) |
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{ |
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int R = *valueRGB; |
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int G = *(valueRGB + 1); |
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int B = *(valueRGB + 2); |
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return ( ((R + G + B) >> 3) & 0xFFFC ); |
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} /* vm_GetColor */ |
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/*======================================================================================*/ |
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CvStatus |
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icvFindRunsInOneImage( int numLines, /* number of scanlines */ |
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uchar * prewarp, /* prewarp image */ |
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int *line_lens, /* line lengths in pixels */ |
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int *runs, /* result runs */ |
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int *num_runs ) |
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{ |
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int epiLine; |
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int run_index; |
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int curr_color; |
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int index; |
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int color; |
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uchar *curr_point; |
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int num; |
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run_index = 0; |
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curr_point = prewarp; |
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for( epiLine = 0; epiLine < numLines; epiLine++ ) |
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{ |
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curr_color = icvGetColor( curr_point ); |
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runs[run_index++] = 0; |
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runs[run_index++] = curr_color; |
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curr_point += 3; |
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num = 1; |
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for( index = 1; index < line_lens[epiLine]; index++ ) |
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{ |
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color = icvGetColor( curr_point ); |
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if( color != curr_color ) |
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{ |
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runs[run_index++] = index; |
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runs[run_index++] = color; |
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curr_color = color; |
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num++; |
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} |
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curr_point += 3; |
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} |
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runs[run_index++] = index; |
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num_runs[epiLine] = num; |
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} |
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return CV_NO_ERR; |
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} |
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/*======================================================================================*/ |
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CV_IMPL void |
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cvFindRuns( int numLines, /* number of scanlines */ |
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uchar * prewarp_1, /* prewarp image 1 */ |
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uchar * prewarp_2, /* prewarp image 2 */ |
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int *line_lens_1, /* line lengths 1 */ |
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int *line_lens_2, /* line lengths 2 */ |
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int *runs_1, /* result runs 1 */ |
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int *runs_2, /* result runs 2 */ |
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int *num_runs_1, /* numbers of first runs */ |
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int *num_runs_2 ) |
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{ |
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IPPI_CALL( icvFindRuns( numLines, /* number of scanlines */ |
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prewarp_1, /* prewarp image 1 */ |
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prewarp_2, /* prewarp image 2 */ |
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line_lens_1, /* line lengths 1 */ |
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line_lens_2, /* line lengths 2 */ |
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runs_1, /* result runs 1 */ |
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runs_2, /* result runs 2 */ |
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num_runs_1, /* numbers of first runs */ |
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num_runs_2 )); |
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}
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