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Open Source Computer Vision Library
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138 lines
4.6 KiB
138 lines
4.6 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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#define CV_MAX2( a, b ) ((a)>(b) ? (a) : (b)) |
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#define CV_MIN2( a, b ) ((a)<(b) ? (a) : (b)) |
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/****************************************************************************************\ |
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create hand mask |
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\****************************************************************************************/ |
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static CvStatus icvCreateHandMask8uC1R(CvSeq * numbers, |
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uchar * image_mask, int step, |
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CvSize size, CvRect * roi ) |
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{ |
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CvSeqReader reader; |
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CvPoint pt; |
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int k_point; |
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int i_min, i_max, j_min, j_max; |
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if( numbers == NULL ) |
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return CV_NULLPTR_ERR; |
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if( !CV_IS_SEQ_POINT_SET( numbers )) |
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return CV_BADFLAG_ERR; |
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i_max = j_max = 0; |
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i_min = size.height; |
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j_min = size.width; |
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cvStartReadSeq( numbers, &reader, 0 ); |
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k_point = numbers->total; |
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assert( k_point > 0 ); |
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if( k_point <= 0 ) |
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return CV_BADSIZE_ERR; |
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memset( image_mask, 0, step * size.height ); |
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while( k_point-- > 0 ) |
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{ |
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CV_READ_SEQ_ELEM( pt, reader ); |
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i_min = CV_MIN2( i_min, pt.y ); |
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i_max = CV_MAX2( i_max, pt.y ); |
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j_min = CV_MIN2( j_min, pt.x ); |
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j_max = CV_MAX2( j_max, pt.x ); |
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*(image_mask + pt.y * step + pt.x) = 255; |
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} |
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roi->x = j_min; |
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roi->y = i_min; |
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roi->width = j_max - j_min + 1; |
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roi->height = i_max - i_min + 1; |
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return CV_OK; |
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} |
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/*F/////////////////////////////////////////////////////////////////////////////////////// |
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// Name: cvCreateHandMask |
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// Purpose: creates hand mask image |
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// Context: |
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// Parameters: |
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// numbers - pointer to the input sequence of the point's indexes inside |
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// hand region |
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// img_mask - pointer to the result mask image |
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// roi - result hand mask ROI |
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// |
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// Notes: |
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//F*/ |
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CV_IMPL void |
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cvCreateHandMask( CvSeq * numbers, IplImage * img_mask, CvRect * roi ) |
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{ |
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uchar *img_mask_data = 0; |
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int img_mask_step = 0; |
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CvSize img_mask_size; |
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CV_FUNCNAME( "cvCreateHandMask" ); |
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__BEGIN__; |
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if( img_mask->depth != IPL_DEPTH_8U ) |
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CV_ERROR( CV_BadDepth, cvUnsupportedFormat ); |
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if( img_mask->nChannels != 1 ) |
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CV_ERROR( CV_BadNumChannels, "output image have wrong number of channels" ); |
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cvGetImageRawData( img_mask, &img_mask_data, &img_mask_step, &img_mask_size ); |
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IPPI_CALL( icvCreateHandMask8uC1R( numbers, img_mask_data, |
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img_mask_step, img_mask_size, roi )); |
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__END__; |
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}
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