joel dinis wrote: > I trying to classify remote sensing imagery, and > I thought to try the i.smap module, but > when I run the i.gensigset,
Please, could you copy-paste the exact command you used? Does the "maxsig=" (e.g. maxsig=20) make any difference? Nikos > I always > get the same problem: > ... > Removed a singular subsignature number 1 (9 remain) > Removed a singular subsignature number 1 (8 remain) > Removed a singular subsignature number 1 (7 remain) > Removed a singular subsignature number 1 (6 remain) > Removed a singular subsignature number 1 (5 remain) > Removed a singular subsignature number 1 (4 remain) > Removed a singular subsignature number 1 (3 remain) > Removed a singular subsignature number 1 (2 remain) > Removed a singular subsignature number 1 (1 remain) > Unreliable clustering. Try a smaller initial number of clusters > Removed a singular subsignature number 1 (-1 remain) > Unreliable clustering. Try a smaller initial number of clusters > Number of subclasses is 0 > Clustering class 12 (184 pixels)... > Removed a singular subsignature number 1 (9 remain) > Removed a singular subsignature number 1 (8 remain) > Removed a singular subsignature number 1 (7 remain) > Removed a singular subsignature number 1 (6 remain) > Removed a singular subsignature number 1 (5 remain) > Removed a singular subsignature number 1 (4 remain) > Removed a singular subsignature number 1 (3 remain) > Removed a singular subsignature number 1 (2 remain) > Removed a singular subsignature number 1 (1 remain) > Unreliable clustering. Try a smaller initial number of clusters > Removed a singular subsignature number 1 (-1 remain) > Unreliable clustering. Try a smaller initial number of clusters > Number of subclasses is 0 > i.gensigset complete. > > And afterwards the signature file doesn't have any > spectral information. I really don't understand whats happening > and the cause to this outcome. > > Can anyone solve this "enigma"? > > Ps: I don't know if this information is important: I collected > about 450 samples distributed by 10 classes. I may also > add that the average number of pixels per sample is around 50. > > And thanks list, for the previous tips: they were very useful. _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
