image_invert.m

matlab处理图像的一些基本方法。其中有一部分mex程序需要安装编译

function image_invert
%IMAGE_INVERT Invert the actual image.
%
%		IMAGE_INVERT
%
%

%
% Copyright (c) 1995 by Claudio Rivetti and Mark Young
% [e-mail],    [e-mail]
%

global I Undofun

if isempty(I)
  return;
end

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

statusbar('Inverting image...');
s=min(min(I))+max(max(I));
zr=fliplr(zrange)*(-1);
%zrange(zr);
%setimage(I*(-1))+s;
setimage(s-I);
un=Undofun;
Undofun=['zrange(fliplr(zrange)*(-1));' un];
clearstatusbar;

return