1 /*M/////////////////////////////////////////////////////////////////////////////////////// 2 // 3 // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. 4 // 5 // By downloading, copying, installing or using the software you agree to this license. 6 // If you do not agree to this license, do not download, install, 7 // copy or use the software. 8 // 9 // 10 // Intel License Agreement 11 // For Open Source Computer Vision Library 12 // 13 // Copyright (C) 2000, Intel Corporation, all rights reserved. 14 // Third party copyrights are property of their respective owners. 15 // 16 // Redistribution and use in source and binary forms, with or without modification, 17 // are permitted provided that the following conditions are met: 18 // 19 // * Redistribution's of source code must retain the above copyright notice, 20 // this list of conditions and the following disclaimer. 21 // 22 // * Redistribution's in binary form must reproduce the above copyright notice, 23 // this list of conditions and the following disclaimer in the documentation 24 // and/or other materials provided with the distribution. 25 // 26 // * The name of Intel Corporation may not be used to endorse or promote products 27 // derived from this software without specific prior written permission. 28 // 29 // This software is provided by the copyright holders and contributors "as is" and 30 // any express or implied warranties, including, but not limited to, the implied 31 // warranties of merchantability and fitness for a particular purpose are disclaimed. 32 // In no event shall the Intel Corporation or contributors be liable for any direct, 33 // indirect, incidental, special, exemplary, or consequential damages 34 // (including, but not limited to, procurement of substitute goods or services; 35 // loss of use, data, or profits; or business interruption) however caused 36 // and on any theory of liability, whether in contract, strict liability, 37 // or tort (including negligence or otherwise) arising in any way out of 38 // the use of this software, even if advised of the possibility of such damage. 39 // 40 //M*/ 41 42 #include "_cvaux.h" 43 44 CV_IMPL void 45 cvDeInterlace( const CvArr* framearr, CvArr* fieldEven, CvArr* fieldOdd ) 46 { 47 CV_FUNCNAME("cvDeInterlace"); 48 49 __BEGIN__; 50 51 CvMat frame_stub, *frame = (CvMat*)framearr; 52 CvMat even_stub, *even = (CvMat*)fieldEven; 53 CvMat odd_stub, *odd = (CvMat*)fieldOdd; 54 CvSize size; 55 int y; 56 57 CV_CALL( frame = cvGetMat( frame, &frame_stub )); 58 CV_CALL( even = cvGetMat( even, &even_stub )); 59 CV_CALL( odd = cvGetMat( odd, &odd_stub )); 60 61 if( !CV_ARE_TYPES_EQ( frame, even ) || !CV_ARE_TYPES_EQ( frame, odd )) 62 CV_ERROR( CV_StsUnmatchedFormats, "All the input images must have the same type" ); 63 64 if( frame->cols != even->cols || frame->cols != odd->cols || 65 frame->rows != even->rows*2 || odd->rows != even->rows ) 66 CV_ERROR( CV_StsUnmatchedSizes, "Uncorrelated sizes of the input image and output fields" ); 67 68 size = cvGetMatSize( even ); 69 size.width *= CV_ELEM_SIZE( even->type ); 70 71 for( y = 0; y < size.height; y++ ) 72 { 73 memcpy( even->data.ptr + even->step*y, 74 frame->data.ptr + frame->step*y*2, size.width ); 75 memcpy( odd->data.ptr + even->step*y, 76 frame->data.ptr + frame->step*(y*2+1), size.width ); 77 } 78 79 __END__; 80 } 81 82 /* End of file. */ 83 84 85
