(updating subject line) On Mon, May 20, 2013 at 9:10 PM, Dr Colin Hindmarch <colinhindma...@talktalk.net> wrote: > Hi, > > Processing PNG files in i.maxlik (Windows-based GRASS), I got (and keep > getting) the following message: > > > "(Mon May 20 09:22:53 2013) > i.maxlik group=sattar@user1 subgroup=subgroup sigfile=unsupervised_signature > class=unsupervised_map > ERROR: Unable to open signature file <unsupervised_signature> > (Mon May 20 09:22:53 2013) Command finished (0 sec)" > > > I am trying to produce an unsupervised classification, but keep getting hung > up in 'i.maxlik'. I have tried reloading the latest version of Grass along > with the 'visual' software, but no luck - I seem to be stuck! I can see from > the email exchanges that you are all very busy, but I would be grateful if > someone could help me to move on.
Did you generate beforehand the signature file with i.gensig? Perhaps this page is useful for you: http://grasswiki.osgeo.org/wiki/Image_classification Markus _______________________________________________ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev