Mercurial > octave
view scripts/image/ntsc2rgb.m @ 1249:86fc40576f22
[project @ 1995-04-11 01:03:08 by jwe]
author | jwe |
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date | Tue, 11 Apr 1995 01:03:57 +0000 |
parents | 56520a75b5b3 |
children | 611d403c7f3d |
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# Copyright (C) 1995 John W. Eaton # # This file is part of Octave. # # Octave is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the # Free Software Foundation; either version 2, or (at your option) any # later version. # # Octave is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License # for more details. # # You should have received a copy of the GNU General Public License # along with Octave; see the file COPYING. If not, write to the Free # Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. function rgb = ntsc2rgb (yiq) # Image format conversion. # Written by Tony Richardson (amr@mpl.ucsd.edu) July 1994. if (nargin != 1) usage ("ntsc2rgb (yiq)"); endif trans = [ 1.0, 1.0, 1.0; 0.95617, -0.27269, -1.10374; 0.62143, -0.64681, 1.70062 ]; rgb = yiq * trans; endfunction