There is a center parameter in lensfun, it seems to work OK to just create a version of the lens that I had previously calibrated the distortion parameters then add a y value.
Hugin lens calibration will also calculate the parameter eg "d", however you have to give it a starting point that is pretty close. It's not intuitive, but it seems to be in pixel units. I think just using the lensfun with a couple of choices will be good enough, because in practice, I won't know the precise shift values, so would be guessing anyway. Conceptually, should the other parameters be the same? Sincerely yours, Robin > On Apr 4, 2018, at 12:11 AM, junkyardspar...@yepmail.net wrote: > > > >> On Tue, Apr 3, 2018, at 15:38, Robin Kramer wrote: >> Is there any support for lenses with movements. I'm especially >> interested in shift. I have a lens with a shift adapter. When I load >> the straight image, the hugin gui calibrates the lens just fine, but >> when I load the shifted calibration chart images(all with the same >> movement), it seems to hang, or at least take a very long time to >> converge. I'm not sure how to interface this with lensfun, since I >> suspect another parameter is needed. >> >> I use shift often it's a very nice effect, for making trees look >> straight, or capturing the sky without looking up. > > Unfortunately, these types of lenses don't play nicely with lens corrections. > There's some discussion of this here: > > https://github.com/lensfun/lensfun/issues/299 > > -- > jys > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Lensfun-users mailing list > Lensfun-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/lensfun-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Lensfun-users mailing list Lensfun-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lensfun-users
