[GRASSLIST:369] Re: Import jpg with r.in.gdal size problem

Laurent Courty lrntct at gmail.com
Fri Mar 24 14:10:48 EST 2006


Silvia Franceschi wrote:
> 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
>   
Hi,

jpeg compress a lot but cause loss of quality. AFAIK, GRASS 
automatically apply a lossless compression on raster.
The size is bigger than jpeg.

Laurent




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