[FWTools] Trying to translate gtif ASTER image to jpg but v. slow

Frank Warmerdam warmerdam at pobox.com
Sun Feb 4 15:08:16 EST 2007

Simon Hook wrote:
> Hi,
> I have a 3 band, byte ASTER satellite image that is stored as a geotif 
> that I want to convert to a jpg with a world file. I run the command:
> F:\Windows\geotif2jpg>gdal_translate -of JPEG -co WORLDFILE=ON 
> aster_vnir.gtif aster.jpg
> Input file size is 5796, 4888
> 0...10...20...30...40...50..
> However, thats the output after about 10 mins, FWTools takes about 20 
> mins per scene and I want to convert hundreds of scenes. Is there any 
> way to speed up gdal_translate. I tried the:
> gdal_translate --config GDAL_CACHEMAX 512
> and then ran the gdal_translate but it is still v. sloow.


I'm sorry, but I haven't seen this slowness.  If you can provide a pointer
to the file, I could download and try to reproduce.

Best regards,
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | President OSGeo, http://osgeo.org

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