### 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.

## Load an image file.
##
## [X, map] = loadimage (img_file) loads an image and it's associated
## color map from file img_file.  The image must be in stored in
## octave's image format.
##
## SEE ALSO: saveimage, load, save

## Author: Tony Richardson <amr@mpl.ucsd.edu>
## Created: July 1994
## Adapted-By: jwe

function [X, map] = loadimage (filename)

  if (nargin != 1)
    usage ("loadimage (filename)");
  elseif (! isstr (filename))
    error ("loadimage: expecting filename as a string");
  endif

  file = file_in_path (IMAGEPATH, filename);

  if (isempty (file))
    error ("loadimage: unable to find image file");
  endif

  ## XXX FIXME XXX -- file is assumed to have variables X and map.
  
  eval (['load ', file]);

endfunction