[gdal-dev] mosaicking is very slow

jratike80 jukka.rahkonen at maanmittauslaitos.fi
Mon Jan 27 02:48:32 PST 2020


I would suggest to remove --config GDAL_CACHEMAX 8000 first. Then I would
check if the source images are tiled. If they are not it could be worth an
extra step to make tiled copies.

-Jukka Rahkonen-

Simon-4 wrote
> Hello everyone,
> I am stiching aroung 100 geotiff images each of around 4gb. However,
> translating the vrt file into geotiff is going on for days.
> gtranslate --config GDAL_CACHEMAX 8000 -co TILED=YES -co COMPRESS=LZW -co
> BIGTIFF=YES infile.vrt outfile.tif
> How can I speed up it?
> Thank you.
> Simon
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