Mercurial > octave-libtiff
view scripts/image/rgb2ntsc.m @ 2311:2b5788792cad
[project @ 1996-07-11 20:18:38 by jwe]
author | jwe |
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date | Thu, 11 Jul 1996 20:18:38 +0000 |
parents | 5cffc4b8de57 |
children | 204cc7db6f4a |
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### Copyright (C) 1996 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, 59 Temple Place - Suite 330, Boston, MA ### 02111-1307, USA. ## Image format conversion. function yiq = rgb2ntsc (rgb) ## Written by Tony Richardson (amr@mpl.ucsd.edu) July 1994. if (nargin != 1) usage ("rgb2ntsc (rgb)"); endif trans = [ 0.299, 0.596, 0.211; 0.587, -0.274, -0.523; 0.114, -0.322, 0.312 ]; yiq = rgb * trans; endfunction