What Ubuntu photo editor can remove purple fringing/chromatic aberration from photos shot with older lenses?
Asked 1/29/2014
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I’m editing photos on Ubuntu and some images taken in bright daylight with older film-era lenses show purple fringing. I’ve tried Bibble 5 and GIMP, but haven’t found a simple, effective workflow there. I’ve also seen mention of patching Darktable to add a defringing module, but I’d prefer something easy to install and use.
Is there an Ubuntu-compatible program that can remove purple fringing, and what tool or feature should I look for?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
12y ago
2 Answers
2
RawTherapee can do this (and can handle not only raw files, despite the name). I don't know if it can integrate into Bibble but I doubt it. See here for the manual.
There are three possible ways, one in the "raw" tab, one in "change/manipulate/transform" tab (fourth tab, I don't know the English name), and one in the "detail" tab (second tab). The last one allows the finest control.
Originally by user24855. Source · Licensed CC BY-SA 4.0
user24855
12y ago
0
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Yes. The feature to look for is usually called chromatic aberration correction, often found under a lens correction section. Purple fringing is commonly treated with that kind of tool.
From the answers, RawTherapee is a good Ubuntu option and can work on more than just RAW files. It includes multiple ways to address this, including controls in its RAW, transform/manipulation, and detail sections, with the detail-related option offering the most precise control.
Bibble 5 integration is unlikely based on the answers, so the simplest path is probably to use RawTherapee as a separate editor for the affected images.
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