On Fri, Jul 17, 2020 at 02:24:44PM +0200, Paul B Mahol wrote: >> Do you have any benchmarks on this? Or image samples? It looks like you are >> transforming to polar coordinates, doing a box blur and then transforming >> back... how does this compare speed- and quality-wise to the more common >> recursive scale+blend approach (which needs no trig)? > Can you provide more info about such algorithm?
There are some pointers in this thread: https://www.pouet.net/topic.php?which=4964&page=1#c184918 I guess this is the oldest description that I know of: http://web.archive.org/web/20040905085427/http://www.themirror.nl/~plek/hypnoglow.txt For a more IIR-like approach, there's this: https://web.archive.org/web/20010606232509/http://www.demo-scene.dk:80/tutorials/radialblur.html Note that the latter is so old that it predates widespread MMX :-) /* Steinar */ -- Homepage: https://www.sesse.net/ _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
