From: Dave H. <da...@mi...> - 2000-05-10 17:26:07
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Chema Celorio wrote: > > 2. PCL COMPRESSION > > I implemented HP's supported compression methods > ( except #9, and there isn't a big gain doing so) and I > spent the weekend optimizing the driver to get the best > compression. The compression ratios achieved where > amazing. (98% Color 96% B&W ). It is important since > the speed improvement in printing this stuff in lasers > is noticeable. > Interesting. the PCL driver already uses mode 2 (TIFF). I have tried mode 9 (CRDR) and it makes it better. I used the compression driver written by Martin Lottermoser (sp?) for the "hpdj" driver. I think the trick is to try all the compression schemes and dynamically switch to the one giving the shortest output buffer! Dave -- Dave Hill, Kempston, Bedford UK da...@mi... davehill at users.sourceforge.net Sicth munce ago, I cutn't evun spel enjuneer, and now I are one! |