Summary: | Random noise reading PDF file | ||
---|---|---|---|
Product: | Ghostscript | Reporter: | Marcos H. Woehrmann <marcos.woehrmann> |
Component: | Images | Assignee: | Ralph Giles <ralph.giles> |
Status: | NOTIFIED FIXED | ||
Severity: | normal | CC: | drugo.pedrouvene |
Priority: | P2 | Keywords: | bountiable |
Version: | master | ||
Hardware: | All | ||
OS: | All | ||
Customer: | 170 | Word Size: | --- |
Attachments: | Bug690791.diff |
Description
Marcos H. Woehrmann
2009-09-29 20:51:02 UTC
Created attachment 5413 [details]
OriginalFile.pdf
Created attachment 5449 [details]
a8-2i4.pdf
Simplified sample file that has only JBIG2 image.
Customer reports that this is a critical issue for them. Just an update. We appear to be decoding the symbol dictionary and text region correctly, but not the final generic region. Disabling the fourth segment gives proper results. The problem is the file includes a refinement region with typical prediction, which we haven't implemented. Resolution of the bug just requires doing so. In the meantime, I've committed a work-around patch to skip the refinement data when we can't decode it as r10362. With this patch, rendering is not completely correct, but is much better as it removes the obscuring layer of noise. *** Bug 690913 has been marked as a duplicate of this bug. *** Created attachment 5705 [details] Bug690791.diff Attaching a backport patch against 8.64/8.70 which fixes the problem. Changing customer bugs that have been resolved more than a year ago to closed. |