[GRASS-user] Filtering high "outliers" in Landsat reflectance imagery?

[Nikos Alexandris]

Nikos A wrote:

> >> Advanced users, may I seek for some recommendation on filtering Landsat
> >> reflectance outliers? 

Nikos A (replying to self):

> > (Thanks Yann)
> > Reflectance is a unit-less ratio, ranging from 0 to 1.0.  So I can flatten
> > everything >1.0 to 1.0.

Markus N:

> I would run r.neighbors with a 3x3 or 5x5 moving window and averaging
> or likewise. The question is always: are they outliers or data?

Wild guessing: too high to be data!?

Nikos
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