CompuServe Messages

Data conversion

    22-Nov-91 10:25:51
Sb: #14944-Data conversion
Fm: tony lavender 76244,3475
To: David R. Yarashus 70673,146
David, We (Reference Technology) typically use CCITT Group IV compression for parts-manual type applications with line drawings. Compression is much better than PCX: usually averages around 20:1 or better. If you have any significant amount of half-tone material, however, things get worse in a hurry! Group IV is a lot more difficult than PCX to decompress: you'd probably be better off buying that technology (from us, for instance ….) than re-inventing it. Tony Lavender