[Qgis-user] Clean a raster layer converted in vector layer

[RNanclares]

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



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