function image_snoise
%IMAGE_SNOISE Add salt noise to the image.
%
%		IMAGE_SNOISE
%
%

%
% Copyright (c) 1995 by Claudio Rivetti and Mark Young
% claudio@alice.uoregon.edu,    mark@alice.uoregon.edu
%

global I 

if isempty(I)
  return;
end

if ~isimage
  setviewmode('TOPVIEW');
  showimage;
end

statusbar('Adding image noise...');
setimage(imnoise(I,'salt & pepper'));
clearstatusbar;

return