* Giuseppe Cillis <giucil...@gmail.com> [2018-11-06 11:23:56 +0100]:

Dear all,
I would like to classify in a semi-automatic way, an old scanned thematic
map of land use.
The different classes of land use are represented by polygons of different
colors.
Which module can I use to identify the different land use classes?
Thanks

Dear Giuseppe,

have a look at
https://grasswiki.osgeo.org/wiki/Image_classification#Supervised_classification.

Nikos
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