In R2009b, we allowed the use of a tilde to ignore unwanted function outputs:
[~,strelButtons,strelSliders] = StrelTool(strel1Parent);
If you're using an earlier version, you should 1) replace the tilde with a dummy variable (like "JUNK"); and 2) update your MATLAB!
27 Feb 2013
An interactive environment for morphologically operating on images.