Wow, thanks. Now I have another great time-waster to play with!
On 5 July 2017 at 19:03, Paul B Mahol <one...@gmail.com> wrote: > On 7/5/17, Moritz Barsnick <barsn...@gmx.net> wrote: > > Hi Evert, > > > > On Wed, Jul 05, 2017 at 13:31:15 +0200, Evert Vorster wrote: > >> Using ffmpeg, hugin, and some scripting, each image is un-distorted > >> according to it's lens characteristics, and stitched together to make an > >> equirectangular frame. > > [...] > >> Rather than figure out the location of each pixel every time, it would > be > >> much more efficient to just use a displacement map and move the pixels. > > > > Do have a look at the "displace" filter. The examples show how to > > describe the displacement with an equation/formula: > > remap filter is better option. > > > > > https://ffmpeg.org/ffmpeg-filters.html#displace > > > >> Actually generating such a map might be a bit of a trick. > >> Is there any ideas from the community on how to generate and use such a > >> map? > > > > If you can describe it mathematically, you may be able to use ffmpeg's > > expression system for the formula. Otherwise you would create two > > "images" which contain this displacement data, and feed them as looped > > inputs. The actual description of the map is probably up to you (and > > hugin or the lens database). > > > > Cheers, > > Moritz > > > >> Isometrix Acquistion Superchief > > > > Lovely title you have there. :-D > > _______________________________________________ > > ffmpeg-user mailing list > > ffmpeg-user@ffmpeg.org > > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > > To unsubscribe, visit link above, or email > > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > -- Evert Vorster Isometrix Acquistion Superchief _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
