LibTiff Mailing List
TIFF and LibTiff Mailing List Archive
May 2000
Previous Thread
Next Thread
Previous by Thread
Next by Thread
Previous by Date
Next by Date
Contact
The TIFF Mailing List Homepage
This list is run by Frank Warmerdam
Archive maintained by AWare Systems
Thread
2000.05.17 22:20 "Re: LeadTools bad JPEG 7 TIFF compression?", by Tom Lane
"Brent Foster" <brent.foster@onstreamsystems.com> writes:
> We're using LeadTools (version 10.0) for JPEG TIFF writing, and I've noticed
> a few things that don't seem right.
Unfortunately, LeadTools has lots of company when it comes to bogus
type-6 TIFF writing. It's amazing how creatively the type-6 spec has
been interpreted by some folks. Bad enough that the spec itself is
ambiguous, but most of the files I've seen have demonstrable violations
of the parts that aren't ambiguous!
I'd strongly recommend that you give up on type-6 TIFFs as a hopelessly
lost cause. There is no compatible file format there, just a babel of
mutually incompatible (mis)implementations.
> Does what I've said sound right? Does anyone that knows a bit more want me
> to send them an image to confirm it?
I'd be glad to look if you want, but I think you've already identified
the problems....
regards, tom lane
organizer, Independent JPEG Group