Dear Paul and Manfred,
thanks for you interest. It works.
According to your indications, I've applied a greyscale equalisation to
each band (using r.colors) previous to the band combination. And the
result is perfect.
Thanks,
*Josep Sitjar Suñer*
Tècnic SIG / Servei de Sistemes d'Informació Geogràfica i Teledetecció
-
Universitat de Girona
*SIGTE*
-
Pl. Ferrater Mora 1
17071 Girona
Tel +34 972 418 039 (7026 intern)
[email protected] <mailto:[email protected]>
http://www.sigte.udg.edu
Twitter http://twitter.com/SIGTE_UDG
El 10/12/15 a les 14:03, Paul Shapley ha escrit:
Hi Josep,
The images probably need a 'Histogram Stretch' using 'r.colors' use
the 'grey' (color) and tick Histogram Stretch' but make sure you set
'g.region' to the full image first otherwise it wont work.
Paul Shapley
On 10 December 2015 at 11:03, Josep Sitjar <[email protected]
<mailto:[email protected]>> wrote:
Dear all,
I'm working with r.composite to create a natural color band
combination using Landsat 8 image. The result is a very dark
image, so I would like to know if there's any way to improve it.
I'm using GRASS 6.X and also GRASS 7.
Thanks in advance,
--
*Josep Sitjar Suñer*
Tècnic SIG / Servei de Sistemes d'Informació Geogràfica i Teledetecció
-
Universitat de Girona
*SIGTE*
-
Pl. Ferrater Mora 1
17071 Girona
Tel +34 972 418 039 <tel:%2B34%20972%20418%20039> (7026 intern)
[email protected] <mailto:[email protected]>
http://www.sigte.udg.edu
Twitter http://twitter.com/SIGTE_UDG
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--
*Paul J. Shapley *MSc CGeog (GIS) FRGS
*
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