Mercurial > octave-nkf
view scripts/image/image.m @ 7016:93c65f2a5668
[project @ 2007-10-12 06:40:56 by jwe]
author | jwe |
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date | Fri, 12 Oct 2007 06:41:26 +0000 |
parents | ec2a523713b5 |
children | a1dbe9d80eee |
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## Copyright (C) 1996, 1997 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} {} image (@var{img}) ## @deftypefnx {Function File} {} image (@var{x}, @var{y}, @var{img}) ## Display a matrix as a color image. The elements of @var{x} are indices ## into the current colormap and should have values between 1 and the ## length of the colormap. ## ## It first tries to use @code{gnuplot}, then @code{display} from ## @code{ImageMagick}, then @code{xv}, and then @code{xloadimage}. ## The actual program used can be changed using the @code{image_viewer} ## function. ## ## The axis values corresponding to the matrix elements are specified in ## @var{x} and @var{y}. If you're not using gnuplot 4.2 or later, these ## variables are ignored. ## @seealso{imshow, imagesc, colormap, image_viewer} ## @end deftypefn ## Author: Tony Richardson <arichard@stark.cc.oh.us> ## Created: July 1994 ## Adapted-By: jwe function image (x, y, img) ## Deprecated zoom. Remove this hunk of code if old zoom argument ## is outmoded. if ((nargin == 2 && isscalar (y)) || nargin == 4) warning ("image: zoom argument ignored -- use GUI features"); endif if (nargin == 4) nargin = 3; endif if (nargin == 2 && isscalar (y)) nargin = 1; endif if (nargin == 0) ## Load Bobbie Jo Richardson (Born 3/16/94) img = loadimage ("default.img"); x = y = []; elseif (nargin == 1) img = x; x = y = []; elseif (nargin == 2 || nargin > 3) print_usage (); endif tmp = __img__ (x, y, img); if (nargout > 0) h = tmp; endif endfunction