Bug 691843 - Luratech JPX decoder gives incorrect image
Summary: Luratech JPX decoder gives incorrect image
Status: NOTIFIED FIXED
Alias: None
Product: Ghostscript
Classification: Unclassified
Component: JPX/JBIG2 encode/decode (show other bugs)
Version: master
Hardware: All All
: P1 normal
Assignee: Alex Cherepanov
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-12-16 23:38 UTC by Ray Johnston
Modified: 2011-10-02 02:35 UTC (History)
0 users

See Also:
Customer: 532
Word Size: ---

Attachments
AAJ.pdf (167.81 KB, application/pdf)
2010-12-16 23:38 UTC, Ray Johnston 		Details
patch (1.99 KB, patch)
2010-12-18 19:26 UTC, Alex Cherepanov 		Details | Diff
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Description Ray Johnston 2010-12-16 23:38:33 UTC 
Created attachment 7037 [details]
AAJ.pdf

When using the Luratech JPX decoder, the attached file has the wrong image.

It is fine with jasper.
Comment 1 Alex Cherepanov 2010-12-17 02:36:05 UTC 
This is a combination of an indexed color space and 4 bit/pixel image.
It is not handled properly now but should be easy to fix.
Comment 2 Alex Cherepanov 2010-12-18 19:26:03 UTC 
Created attachment 7047 [details]
patch

Implement correct bit packing for an indexed image with 4 bit/pixel color
depth in the interface to Luratech JPX library.
Comment 3 Alex Cherepanov 2010-12-18 19:27:57 UTC 
The patch has been committed as a rev. 11962.