jpeg compression is lossy by definition. There is no such thing as lossless jpeg compression.
Personally, I only LZW (which is lossless) for tiff. I cannot think of any reason why you would ever want to use jpeg compression for a tiff over a straight jpeg format. I've had zero experience experience with the Pack Bits and Deflate options. On a side note, at work we have high spec color laser jet printer that happens to have scanning capabilities as well. For some reason, the tiffs it creates are tiff w/jpeg compression with NO option to change it to other any other compression type or even muck with the jpeg compression setting. I noticed that the Gimp doesn't give any option either for the jpeg compression setting when saving as a tiff. On Sat, 2005-04-16 at 22:46 +0200, cedric wrote: > Reading Tiff specs for Scribus Team, we saw that Tiif could have JPEG > compression. We add a simple question : is gimp implementation of Tiff > jpeg compression lossless ? And in which case use one or another > compression options ? > > regards. > Cedric > _______________________________________________ > Gimp-user mailing list > Gimp-user@lists.xcf.berkeley.edu > http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user _______________________________________________ Gimp-user mailing list Gimp-user@lists.xcf.berkeley.edu http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
