LibTiff Mailing List
TIFF and LibTiff Mailing List Archive
May 2005
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
2005.05.24 09:10 "Re: Question about Jpeg-in-tiff, JPEG IN TIFF created by libtiff can't be read by acdsee", by Joris Van Damme
> and i found that a few high-profile apps(like Windows Imaging, acdsee 5) can't > decode them. Windows Imaging is half a century behind, it's still trying to make sense of original old-style TIFF 6.0 jpeg-in-tiff, while the rest of the planet agrees new-style compression 7 as specificied in specification supplement 2 is the way to go. As to ACDSEE, I don't know. > 1. what libtiff doing(write) with the JPEG-in-TIFFs as i described meet the > TIFF Specification (standard) ? Yes, it is. The specification, I mean to include the supplements. See http://www.awaresystems.be/imaging/tiff/faq.html#q4 for the full list of URLs to the specification. I intentionally include a pointer to Tom's original TT2 there, even though this is absorbed in supplement 2, because that original includes a lengthy description of why the format that Window Imaging is trying to honour is complete shambles and should not be used. > 2. how can i do some modification with the libtiff library ,just make it can > write the jpeg data as a single strip.? Show us your current code. If you use the strip interface, and you need to write a single strip, the modification should probably be as easy as adjusting the rowsperstrip value, I think. Joris Van Damme info@awaresystems.be http://www.awaresystems.be/ Download your free TIFF tag viewer for windows here: http://www.awaresystems.be/imaging/tiff/astifftagviewer.html