Case Study on Multispectral Land Cover Classification - Open Source Geospatial Tools: Applications in Earth Observation - page 301

Fig. 17.4 Unsupervised classification of Landsat 8 composite scene using 15 clusters
-in LC82070232013_features.tif
Name of the input raster dataset to be clustered.
-nc 15
Number of clusters.
-maxit 1500
Maximum number of iterations (result becomes stable after 500 iterations).
-ct 0.0001
Convergence threshold.
-out LC82070232013_unsupervised.tif
Name of the clustered output raster dataset.