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".
