[GRASSLIST:387] Re: Import jpg with r.in.gdal size problem

[ivan marchesini]

the main difference between grass and other simpler gis regards the use
of raster data...
in grass you need to import the data (which are converted into grass
data format) because grass thinks that you need to work with these data
to perform image analisys, filtering, etc...
using other gis (for example Qgis) you simply load the data for
visualization and so you don't need to import them... and you can load
them in the jpeg, tiff, or other format.... saving disk space...
so, at the end, the problem is: what are you going to do with these
data????   :-)

cheers
Ivan






Il giorno ven, 24/03/2006 alle 19.56 +0100, Silvia Franceschi ha
scritto:
> Hi everyone,
> I have imported some jpg files (230 orthophoto of my region) in GRASS using 
> the command r.in.gdal. The original size of the data is about 3-5 MB with a 
> text file of about 150 B. When I import the data in GRASS I obtain files of 
> 75-100 MB and that means too much space to disk.
> Do someone know if there is a way to compress them? Now I have a location of 
> 15 GB and I can't manage it. 
> 
> Please help me...
> 
> Thanks,
> Silvia
-- 
Ivan Marchesini
Department of Civil and Environmental Engineering
University of Perugia
Via G. Duranti 93/a 
06125
Perugia (Italy)
e-mail: marchesini at unipg.it
        ivan.marchesini at gmail.com
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