Cool, Do you use a checkerboard + opencv approach or something else?
And how "fishy" (degrees field of view) was your fisheye lens? Kind regards Jesper 2015-06-09 22:15 GMT+02:00 Anshul <anshul.ffm...@gmail.com>: > > > On 06/10/2015 01:55 PM, Jesper Taxbøl wrote: > >> Hi Guys, >> >> I am looking into calibrating a 1080S video from a GoPro hero4. I have >> looked into the lens correction filter but I have had a hard time finding >> the correct parameters. >> >> I have been fiddling around with opencv doing checkerboard videos to >> extract the parameters but with little luck yet. >> >> My question is if the lens correction filter can work on fisheye cameras >> or >> it is limited in a way so I need a different approach? >> >> Kind regards >> >> Jesper >> _______________________________________________ >> ffmpeg-user mailing list >> ffmpeg-user@ffmpeg.org >> http://ffmpeg.org/mailman/listinfo/ffmpeg-user >> > it works well, if you have correct parameter. I have used it to remove > barrel and fisheye distortion. > > I use my own custom tool to find correct parameter like k1 and k2. > -Anshul > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > -- Jesper Taxbøl +45 61627501 _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user