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- Path: sparky!uunet!cs.utexas.edu!sun-barr!male.EBay.Sun.COM!exodus.Eng.Sun.COM!sun!amdcad!weitek!pyramid!infmx!news
- From: cortesi@informix.com (David Cortesi)
- Newsgroups: comp.sys.next.misc
- Subject: TIFF compression (was Re: A NEW tar&compress FRONTEND...)
- Message-ID: <1992Aug26.163634.25539@informix.com>
- Date: 26 Aug 92 16:36:34 GMT
- References: <1992Aug24.160817.2595@ms.uky.edu>
- Sender: news@informix.com (Usenet News)
- Reply-To: cortesi@informix.com
- Organization: Informix Software, Inc.
- Lines: 12
-
- In article <1992Aug24.160817.2595@ms.uky.edu> soward@slow.inslab.uky.edu (John
- Soward) writes re optional tiff compression:
- > In real-world usage, packbits seems to perform poorly, but lzw does
- > okay--but not really much better than using compress (also lempel-ziv) on the
- > tiff file (but then you have to actually issue uncompress to open it ;-)
-
- The big difference is that an lzw-compressed tiff file is still
- (supposed to be) usable as a tiff, while the foo.tiff.Z output by
- compress is not. For example. if you lzw-compress a tiff image
- using tiffutil, you can still import the compressed tiff into
- FrameMaker and it will display correctly. (This can have a MAJOR
- effect on Frame document size!)
-