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139 lines
4.5 KiB
C++
139 lines
4.5 KiB
C++
/*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, "Unsupported format" );
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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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