Hello to all, I trying to classify remote sensing imagery, and I thought to try the i.smap module, but when I run the i.gensigset, 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.
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