On Wed, 2011-07-27 at 02:56 +0400, Alexandre Prokoudine wrote: > On Wed, Jul 27, 2011 at 2:28 AM, Leonard Evens wrote: > > > Actually, I am familiar with the lens model, and at one point I tried to > > calculate the coefficients for a lens I had. It is not conceptually > > difficult, but it is harder in practice to do than one might imagine. I > > would rather not do it if it has already been done. As I remarked, the > > gimplensfun filter does a very good job based on what it finds in the > > exif file, and it works very well for my 18-200 mm Nikkor lens. So > > ufraw should be able to do as well. I think it is bug in ufraw and I > > hope someone will fix it soon. > > If you are on Linux, I'd rather recommend darktable over UFRaw. > It also supports LensFun library to fix distorsions.
I've installed darktable, but I had a lot of trouble running the videos which were promised. I guess I will use the manual. Is darktable supposed to substitute for gimp altogether? > > Meanwhile Hugin 2011.2.0 is coming with lens calibration UI (just in > case you're interested). I am interested. I've used hugin to create panoramas with my view camera. I make two or three exposures on color negative film using a panoramic head, scan them and then combine them with hugin. It allowed me to take a picture of a building facade from relatively close up with my 75 mm (roughly equivalent to 18-23 mm in 35 mm) lens which I couldn't possibly do in one exposure. Of course with a view camera lens, the lens distortion is so small that it is not usually worth worrying about. The problem with hugin is that the learning curve is pretty steep, and I don't use it often enough to remember how to use it. > > Alexandre Prokoudine > http://libregraphicsworld.org > _______________________________________________ > Gimp-user mailing list > Gimp-user@lists.XCF.Berkeley.EDU > https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user _______________________________________________ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
