[TYPO3] convert lzw compressed tiff with graphicsmagick 1.1.6

Thomas Oppelt t.content at gmx.de
Thu Dec 27 19:14:03 CET 2007


hi,

setup:
debian etch
T3 4.1.5
GM 1.1.6 from http://typo3.sunsite.dk/software/linux/

Image Processing within Typo3 works fine, my Problem:

I want to convert large lzw compressed tiff files to a lower resolution
and so i tried from shell:

'gm convert -geometry 800x600! <highres_tif_file_lzw_compressed> 
<lowres_tif_file_lzw_compressed>'

But i just got this warning:
'/usr/local/graphicsmagick-1.1.6/bin/gm convert:
LZW compression is not available to due to Unisys patent enforcement.'

In the gm 1.1.6 README i found that the compilation already comes with 
lzw compression support and i thaught the Unisys patent is expired since 
2004?
So what's wrong here?

regards
thomas


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