Mercurial > octave-nkf
view scripts/image/rgb2ntsc.m @ 7021:0b91144f9533 ss-2-9-15
[project @ 2007-10-13 14:34:06 by jwe]
author | jwe |
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date | Sat, 13 Oct 2007 14:34:07 +0000 |
parents | a1dbe9d80eee |
children | 4fbfce35012a |
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## Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2005, 2006, 2007 ## 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 3 of the License, 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, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {Function File} {} rgb2ntsc (@var{rgb}) ## Image format conversion. ## @end deftypefn ## Author: Tony Richardson <arichard@stark.cc.oh.us> ## Created: July 1994 ## Adapted-By: jwe function yiq = rgb2ntsc (rgb) if (nargin != 1) print_usage (); endif trans = [ 0.299, 0.596, 0.211; 0.587, -0.274, -0.523; 0.114, -0.322, 0.312 ]; yiq = rgb * trans; endfunction