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78 lines
2.5 KiB
78 lines
2.5 KiB
9 years ago
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/** @file */
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/* The MIT License
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*
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* Copyright (c) 2008, Naotoshi Seo <sonots(at)sonots.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef CV_MULS_INCLUDED
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#define CV_MULS_INCLUDED
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#include "cv.h"
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#include "cvaux.h"
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#include "cxcore.h"
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/**
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* Multiply a scalar to an array
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*
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* @param src source array
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* @param scalar scalar to multiply
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* @param dst destination array
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*/
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CVAPI(void) cvMulS( const CvArr *src, const CvScalar scalar, CvArr *dst )
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{
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IplImage* _src = (IplImage*)src, _srchdr;
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IplImage* _dst = (IplImage*)dst, _dsthdr;
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int ch, row, col;
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CV_FUNCNAME( "cvMulS" );
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__CV_BEGIN__;
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if( !CV_IS_IMAGE(_src) )
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{
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CV_CALL( _src = cvGetImage( _src, &_srchdr ) );
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}
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if( !CV_IS_IMAGE(_dst) )
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{
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CV_CALL( _dst = cvGetImage( _dst, &_dsthdr ) );
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}
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CV_ASSERT( _src->width == _dst->width );
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CV_ASSERT( _src->height == _dst->height );
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CV_ASSERT( _src->nChannels == _dst->nChannels );
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// cvScale does not support COI
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// for( ch = 0; ch < _src->nChannels; ch++ )
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// {
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// cvSetImageCOI( _src, ch + 1 );
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// cvScale( _src, _dst, scalar.val[ch] );
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// }
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for( row = 0; row < _src->height; row++ )
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{
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for( col = 0; col < _src->width; col++ )
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{
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CvScalar value = cvGet2D( _src, row, col );
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for( ch = 0; ch < _src->nChannels; ch++ )
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value.val[ch] *= scalar.val[ch];
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cvSet2D( _dst, row, col, value );
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}
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}
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__CV_END__;
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}
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#endif
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