Opened 12 months ago

Last modified 12 months ago

#4005 new enhancement

i.sentinel.mask: use raster based approach for shadow detection

Reported by: sbl Owned by: grass-dev@…
Priority: normal Milestone: 7.8.3
Component: Addons Version: unspecified
Keywords: i.sentinel.mask Cc:
CPU: Unspecified Platform: Unspecified

Description

Detection of cloud shadows can be quite time consuming at times, esp. with many clouds and shadows in an image.

The performance of the process could be improved by orders of magnitude, if a raster based approach (r.reclass.area + r.region + r.stats) would be used, instead of going through vector data (r.to.vect + v.clean + v.transform + v.to.db).

In most cases, a raster mask is needed anyway in the processing chain downstreams...

Change History (1)

comment:1 Changed 12 months ago by neteler

Milestone: 7.8.3
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