Bug 82391 - Artifact in blur rendering with Antialias enabled
Summary: Artifact in blur rendering with Antialias enabled
Status: RESOLVED MOVED
Alias: None
Product: poppler
Classification: Unclassified
Component: general (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: poppler-bugs
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-08-09 15:31 UTC by Lucas Kane
Modified: 2018-08-20 21:54 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments
rendering artifacts with antialias enabled (8.19 KB, text/plain)
2014-08-09 15:31 UTC, Lucas Kane 		Details
correct rendering with antialias disabled (4.37 KB, text/plain)
2014-08-09 15:31 UTC, Lucas Kane 		Details
original pdf (11.72 KB, application/pdf)
2014-08-09 15:33 UTC, Lucas Kane 		Details
rendering artifacts with antialias enabled (5.95 KB, image/png)
2015-01-14 09:30 UTC, dave lepore 		Details
correct rendering with antialias disabled (7.84 KB, image/png)
2015-01-14 09:34 UTC, dave lepore 		Details
Show Obsolete (2) View All

Description Lucas Kane 2014-08-09 15:31:22 UTC 
Created attachment 104347 [details]
rendering artifacts with antialias enabled

With Antialias enabled some PDFs show rendering artifacts. Please see the attached pictures for a comparison (the picture are from okular).

The artifacts go away if the option is disabled (however that means poor general rendering quality). 

Readers not based on poppler are not affected (e.g. mupdf).

The problem is in the slight darker outline that can be seen at the end of the blurred region. It should be easy to spot the problem if you open the test pdf in okular first and then with mupdf
Comment 1 Lucas Kane 2014-08-09 15:31:49 UTC 
Created attachment 104348 [details]
correct rendering with antialias disabled
Comment 2 Lucas Kane 2014-08-09 15:33:10 UTC 
Created attachment 104349 [details]
original pdf
Comment 3 dave lepore 2015-01-14 09:30:47 UTC 
Created attachment 112206 [details]
rendering artifacts with antialias enabled
Comment 4 dave lepore 2015-01-14 09:34:56 UTC 
Created attachment 112207 [details]
correct rendering with antialias disabled
Comment 5 GitLab Migration User 2018-08-20 21:54:20 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/poppler/poppler/issues/119.

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