On 04/25/2014 11:17 AM, Torsten Bronger wrote: > Hallöchen! > > Alex Mandel writes: > >> [...] >> >> A few rounds with tfun to find the various errors and it shows up >> now. Correction parameters need some more work but this is a >> start. I think when I tried originally I didn't realize which >> parameters are required, and so did a very stripped down >> version. Then when that didn't work and I tried putting all >> parameters in I started mistyping things. > > Please upload your RAWs -- or JPEGs if this camera doesn't provide > anything else -- at <wilson.bronger.org/calibration>. Then, I will > do the calibration, include the data in lensfun, and send a copy of > the XML to you. > > Tschö, > Torsten. >
I think I need to go out and get some better shots of buildings, like your site recommends, this weekend. I mostly have shots of farm fields with rows of crops, ditches, etc. The tricky part for me seems to be that from what I can find the Hero2 has a 2.5mm lens with a crop factor of 6.4 ~ 16mm for 35mm film. At least that's what the web and exif data indicate. Using a crop factor other than 1 seems to distort badly. So I have it working, but I either get over-distortion or under distortion. For fun I've compared using rectilinear vs fisheye, rectilinear seems to give better results (visually to me). The other weird part is that GIMP and Digikam appear to apply the same lens parameters differently. Probably not a lensfun issue directly. I may need to upgrade both to most recent versions to figure out. I'll have to put up some examples for others to see. I would love to figure out how to do this since I expect to have all sorts of weird lens combos in the future. e.g. my second lens is a custom 3rd party infrared lens, so the focal length might be inaccurate, and there's a chance no one else has this combo. I also expect to do this with other cameras/sensors in the future. Thanks, Alex ------------------------------------------------------------------------------ Start Your Social Network Today - Download eXo Platform Build your Enterprise Intranet with eXo Platform Software Java Based Open Source Intranet - Social, Extensible, Cloud Ready Get Started Now And Turn Your Intranet Into A Collaboration Platform http://p.sf.net/sfu/ExoPlatform _______________________________________________ Lensfun-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/lensfun-users
