Hi Giacomo, i would recommend filtering the raster before vectorizing. You can use the sieve tool or a majority filter (via processing). With the sieve tool you can set a threshold value which will define the minimum number of pixels a cluster must have to be preserved, otherwise it will be merged with the neighboring clusters.
Cheers -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Clean-a-raster-layer-converted-in-vector-layer-tp5201847p5201865.html Sent from the Quantum GIS - User mailing list archive at Nabble.com. _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
