Mercurial > octave-nkf
view scripts/image/rgb2ntsc.m @ 1024:56520a75b5b3
[project @ 1995-01-11 20:30:04 by jwe]
author | jwe |
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date | Wed, 11 Jan 1995 20:30:04 +0000 |
parents | 4e826edfbc56 |
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 yiq = rgb2ntsc (rgb) # Image format conversion. # 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