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  • #21

Closed
Open
Created Feb 27, 2002 by Bugzilla@bugzilla-migration💬Reporter

Incorrect RGBA resampling in Warp plug-in

Submitted by Raphaël Quinet

Link to original bug (#72877)

Description

If two pixels have different opacity values (alpha channel), then their colors are not averaged correctly by the Map->Warp plug-in. 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.

Version: 1.x

Blocking

  • Bug 70335
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