http://imagej.273.s1.nabble.com/negative-centroid-values-tp3697001p3697003.html
Yea! 1.39u gets the correct centroid values. Thank you.
>
> > I'm running ImageJ 1.39t on Mac OSX v.10.5.2. I'm working with a 29MB,
> > 8-bit, 5558x5558 pixel jpg image. When I calculate the centroid of a
> > polygon (fairly circular, ~2800 pixels diameter) in the center of the
> > image,
> > I get negative values for the centroid. Is there a way to correct
> > this?
> >
> > I had this problem once before in 2006 with an old version of ImageJ.
> > At
> > the time, the solution was to upgrade to the latest version, but I have
> > checked and am now running a current version. I would appreciate any
> > suggestions for dealing with this problem. Thanks.
>
>
> This bug is fixed in ImageJ 1.39u. You can upgrade by running the
> ImageJ_Updater plugin
> (
http://rsb.info.nih.gov/ij/plugins/imagej-updater.html) and selecting
> "daily build" from the drop down menu.
>
>
> -wayne