(updating subject line)
On Mon, May 20, 2013 at 9:10 PM, Dr Colin Hindmarch
<colinhindmarch@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