i.class->i.cluster seed file

O. Hellwich olaf at photo.verm.tu-muenchen.de
Fri Jul 15 11:36:53 EDT 1994

Hi GRASS users,

Does anybody know what the use of a seed file (e.g. from i.class)
in i.cluster is? As far as I understand i.cluster it does an 
unsupervised computation of a signature file. But apparently it
can be supported by a signature from a supervised classification.
Doing this I found that the number of classes i.cluster generates
is limited to the number of classes in this additional input signature
(seed) file. Now I don't really understand why i.cluster should be
used with such a given signature file. May be it "improves" the

Does anybody know more about this matter? 
Thanks for your help.

Olaf Hellwich
Chair for Photogrammetry and Remote Sensing
Technical University of Munich
Arcisstr. 21
80290 Muenchen

Phone: +49 89 2105 2677
Fax: +49 89 280 9573
EMail: olaf at photo.verm.tu-muenchen.de

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