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Bug 72872 - Incorrect RGBA resampling in GIMPressionist plug-in
Incorrect RGBA resampling in GIMPressionist plug-in
Status: RESOLVED OBSOLETE
Product: GIMP
Classification: Other
Component: Plugins
1.x
Other All
: Normal normal
: Future
Assigned To: GIMP Bugs
GIMP Bugs
Depends on:
Blocks: 70335
 
 
Reported: 2002-02-27 17:28 UTC by Raphaël Quinet
Modified: 2018-05-24 10:40 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Raphaël Quinet 2002-02-27 17:28:05 UTC 
If two pixels have different opacity values (alpha channel), then their
colors are not averaged correctly by the GIMPressionist plug-in.  The
problem is also visible in the preview window.

It looks like the RGB channels are resampled without taking the opacity
into account.  As a result, the (invisible) color of a transparent pixel
can bleed into an opaque pixel.  The resulting image is incorrect.

See bug #70335 for some test images and a longer description of the
problem.  This problem affects many other tools and plug-ins.
Comment 1 Dave Neary 2003-07-23 16:19:39 UTC 
Changed target milestone of several bugs to 2.0 - these are not features, and
don't look to me like blockers for a pre-release, but they have to be addressed
before 2.0.

Dave.
Comment 2 Dave Neary 2003-11-25 12:15:27 UTC 
Bumping the milestone for this bug, and all that depend on it, to 2.2.

In the absence of someone actively working on this, there is no point keeping it
on the 2.0 milestone.

If someone wants to work on this, fixes to this family would also be accepted on
the stable branch.

Dave.
Comment 3 Sven Neumann 2004-10-22 23:01:21 UTC 
To use Dave's famous words: In the absence of someone actively working on this,
there is no point keeping it on the 2.2 milestone.
Comment 4 GNOME Infrastructure Team 2018-05-24 10:40:49 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to GNOME'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.gnome.org/GNOME/gimp/issues/20.