[Gdal-dev] GDAL LZW PREDICTOR : urgent help

Brent Fraser bfraser at geoanalytic.com
Fri Feb 2 23:23:32 EST 2007


Have a look at http://www.gdal.org/frmt_gtiff.html
You might try COMPRESS=JPEG with a low number for JPEG_QUALITY, but this
is a "lossy" compression technique.

> Can anyone send me the syntaz of compression a image using GDAL_TRANSLATE
> with the Predictor Option
>
> My Objective is to compress an Image further more .
>
> Adobe CS2 is compressing the image even further. can anyone what
> compression algorithm does Adobe Cs2 use to
> compress the TIFF Files... (Is it LZW or LZW predictor)
>
> right now i am using the below syntax.
> gdal_translate -of GTiff -co PREDICTOR=2 -co compress=lzw ab.tif gplzw.tif
>
> COMPRESS=[JPEG/LZW/PACKBITS/DEFLATE/NONE]:
> PREDICTOR=[0/1/2]
>
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