Bug 215899

Summary: Interactive chromatic aberration correction in digiKam image editor
Product: [Applications] digikam Reporter: Francisco Lorés <plores>
Component: Plugin-Editor-LensCorrectionAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: wishlist CC: caulier.gilles
Priority: NOR    
Version First Reported In: 1.0.0   
Target Milestone: ---   
Platform: openSUSE   
OS: Linux   
Latest Commit: Version Fixed/Implemented In: 8.0.0
Sentry Crash Report:

Description Francisco Lorés 2009-11-23 22:59:32 UTC 
Version:            (using KDE 4.3.3)
OS:                Linux
Installed from:    openSUSE RPMs

digiKam now uses liblensfun to implement chromatic aberration correction (although not all Linux distros have digiKam compiled with it). But sometimes, especially for less knowledgeable users (like me :-)), it may be difficult to find the suitable correction coefficients for a given lens, not to mention that this must be done with each new lens (one which is not included in the lens database), at several focal lengths, to allow lensfun to interpolate between them. On the other hand, making the correction directly with the Raw Import Tool is a bit tricky and slow, as the raw file must be demosaiced each time the red and/or blue aberration parameters are changed.

It seems to me that for many users it would be very useful and easier to use the implementation of interactive chromatic aberration correction in the Image Editor, much in the same way many other raw processing software do (including those that come with many camera brands).
Comment 1 caulier.gilles 2011-12-17 19:25:35 UTC 
Francisco,

This file still valid using digiKam 2.x serie ?

Gilles Caulier
Comment 2 caulier.gilles 2023-04-06 15:56:10 UTC 
The Image Editor GMIC-Qt MS Patch Chroma filter do this job...

https://i.imgur.com/rpxODMy.png

Gilles Caulier