Public bug reported: The patches applied to libtiff 4.0.6 in 4.0.6-2ubuntu01 seem to break JPEG tiff read and write.
To reproduce: $ tiffcp -c jpeg k2a.tif x.tif (where k2a.tif is a simple uncompressed RGB strip tiff) appears to work. However, x.tif, the output, will now not read without warnings: $ tiffcp x.tif y.tif TIFFFetchNormalTag: Warning, ASCII value for tag "JPEGTables" does not end in null byte. Forcing it to be null. JPEGLib: Warning, Premature end of JPEG file. This was working fine until a couple of days ago, so I guess it's one of the most recent patches. Some packages using libtiff seem to be broken too. For example, openslide, which uses libtiff to load jp2k-compressed slide images, is no longer working: $ openslide-write-png CMU-1-Small-Region.svs 0 0 0 100 100 x.png TIFFFetchNormalTag: Warning, ASCII value for tag "JPEGTables" does not end in null byte. Forcing it to be null. TIFFFetchNormalTag: Warning, ASCII value for tag "JPEGTables" does not end in null byte. Forcing it ... repeats 8 more times openslide-write-png: Premature end of JPEG file and x.png is not a valid PNG image. The test .svs image may be downloaded here: http://openslide.cs.cmu.edu/download/openslide-testdata/Aperio/ ** Affects: tiff (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1670036 Title: 4.0.6-2ubuntu01 has problems reading and writing JPEG compressed images To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/tiff/+bug/1670036/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
