[GRASS-dev] GRASS GIS raster files: LZW compression?

Markus Neteler neteler at osgeo.org
Wed Oct 25 13:40:47 PDT 2017


Hi devs,

while playing with the SRTM 30m world I see that there is a difference
of 66GB in size between LZ4 (larger) and DEFLATE (smaller). While this
is not a surprise I was wondering if LZW compression could be brought
back. AFAIK the license issue is gone for a while and indeed GRASS got
a special permit back in 1988 according to the old source code.

Would that make sense?

Markus


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