On Wed, Sep 19, 2018 at 12:43 PM Giuseppe Cillis <[email protected]> wrote: > > Thanks for the message, > but when I try to run i.cluster with just one raster, the module doesn't work > because: " subgroup need two images" .
... this is because it requires two maps or more as input. Do you have greyscale photos? If yes, i.e. you want to classify a single-band image, then you can use other options: - generate synthetic channels (e.g., with r.texture) to be additionally fed to i.cluster/i.maxlik - use segmentation, e.g. with i.segment However, probably you have R, G, B available? Then, as per email by Markus Metz, you need to first patch channel-wise the two orthophotos into 3 mosaiks, then feed that to i.cluster/i.maxlik. HTH, markusN _______________________________________________ grass-user mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/grass-user
