/usr/lib/scilab-sivp/macros/imadd.sci is in scilab-sivp 0.5.3+svn287-2ubuntu1.
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// SIVP - Scilab Image and Video Processing toolbox
// Copyright (C) 2006 Shiqi Yu
//
// This program 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 of the License, or
// (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
////////////////////////////////////////////////////////////
function [imout] = imadd(im1, im2)
if ( typeof(im1(1))=='constant') then //double
imout = im1 + im2;
elseif ( typeof(im1(1))=='int8') then //int8
imout = double(im1) + double(im2);
imout(imout > 127) = 127;
imout(imout < -128) = -128;
imout = int8(imout);
else
imout = int_imadd(im1, im2);
end
endfunction
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