Hallöchen! [email protected] writes:
> Currently, darktable uses lensfun to correct lens distortion, > chromatic aberration and virgetting. However the current lensfun > database is very limited and it does not have many lens such as > the Canon 18-135mm zoom. Yet for a novice, it is very tedious to > create a lens profile manually, and mistakes in this manual > process can easily led to more distortion in the processed images. Improvement is on the way. I will launch a website in the next couple of days where you can upload images and let them processed by me, so that it is less tedious and error-prone for the average user. A non-working snapshot can be seen at <http://wilson.homeunix.com/calibration>. But please don't publish this link elsewhere or actually use the service yet. > [...] > > In rawtherapee, if there is an adobe lcr lens profile correction > file, then the user can simply specify that file in the lens > correction module, and the module can make use of the profile that > is created and verifed by Adobe. However, depending on the origin of the Adobe lens correction file, this approach violates its licence. > I guess it would just involve changes to the lens correction > module only, where by default it uses lensfun, but users can > override by specifying that adobe LCR were to be used and specify > the LCR file. [...] The better way is to extend LensFun. It is not really difficult, actually. You "just" have to implement the Adobe formulae, which are well-documented. This way, all LensFun-using programs benefit, and DT doesn't have to re-implement LensFun code. However, I know of noone working on it or planning to work on it. Tschö, Torsten. -- Torsten Bronger Jabber ID: [email protected] or http://bronger-jmp.appspot.com ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ darktable-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-devel
