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+--- Thread: Anti-Aliasing on white text causes green outline (/Thread-Anti-Aliasing-on-white-text-causes-green-outline)
Anti-Aliasing on white text causes green outline - ComicSads - 08-21-2018
I want to have some white text on a transparent background so I can composite it into a different program with poor text support.
Whenever I try to do this with anti-aliasing on the text enabled, I get a green outline around the text for no apparent reason.
Please help and thanks in advance!
Information:
Using gimp 2.8.22
Font used in image is FreeSans, but the bug occurs with any font I use
Does not appear to happen if I use the brush tool
(It's difficult to see in the attached photo, but the area surrounding the text is transparent.)
RE: Anti-Aliasing on white text causes green outline - Ofnuts - 08-21-2018
Known problem... This is due to the library Gimp uses (libcairo) using sub-pixel rendering when it shouldn't do so. Two workarounds:
- disable sub-pixel rendering at the system level (this is some option in your desktop settings, for KDE it is a sub-option of "Fonts>Font>Use Antialiasing". Whether you can live without it is up to you
- fix the problem when it appears (it is visible mostly for white text over a dark background), replace the text layer with:
- Layer>Text to path
- Select>From path
- bucket fill the selection.
- Layer>Text to path