Hallöchen! Helmut Jarausch writes:
> [...] > > Result: this images are identical (except the intensities of gray > tones). This is a very nice scheme. Unfortunately, for focus at infinity, the approach with a well-defined grid is only feasible for extreme tele lenses. > This means, that the polynom computed by me produces excatly the > same lens correction as the camera (FZ1000) does it itself. > > Unfortunately the coefficient d differs from 1 which is an assumption > in lensfun. This thing has been inherited from the PanoTools (amongst other sub-optimal things). > Is there a way to use or patch lensfun to use all 4 parameters (e.g. a > general d)? We could define another model. Maybe the Adobe models, which are included soon, help you. They contain more coefficients. But can't you just use the Lensfun formula in Octave? Another problem is that Lensfun cannot process distortion parameters depending on distance. Currently, at least I don't have plans to change this because it would mean complicated modifications with small benefit. Tschö, Torsten. -- Torsten Bronger Jabber ID: [email protected] ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. http://pubads.g.doubleclick.net/gampad/clk?id=1444514421&iu=/41014381 _______________________________________________ Lensfun-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/lensfun-users
