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1996-09-28
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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 imshow (a1, a2, a3)
# Display images.
#
# imshow (X) displays an indexed image using the current colormap.
#
# imshow (X, map) displays an indexed image using the specified colormap.
#
# imshow (I, n) displays a gray scale intensity image.
#
# imshow (R, G, B) displays an RGB image.
#
# SEE ALSO: image, imagesc, colormap, gray2ind, rgb2ind.
# Written by Tony Richardson (amr@mpl.ucsd.edu) July 1994.
if (nargin < 0 || nargin > 3)
usage ("imshow (args)");
elseif (nargin == 2)
if (length (a2) == 1)
[a1, a2] = gray2ind (a1, a2);
endif
colormap (a2);
elseif (nargin == 3)
[a1, a2] = rgb2ind (a1, a2, a3);
colormap (a2);
endif
image (a1);
endfunction