https://wiki.johnharrison.cc/ 2026-05-01T17:10:43+00:00 https://wiki.johnharrison.cc/ https://wiki.johnharrison.cc/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2022-11-13T13:19:42+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.johnharrison.cc/doku.php?id=projects:bird_feeder:birds&rev=1668345582&do=diff Attracting Birds Notes from conversation with Roy Beckemeyer Roy led bird monthly walks at Botanica from 2000 to 2008 * best generic food: black oil sunflower seeds * birds are attracted to the sound of dripping water * if you can incorporate a bird bath with the feeder it's even better text/html 2022-11-17T13:09:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.johnharrison.cc/doku.php?id=projects:bird_feeder:software&rev=1668690540&do=diff Slow Motion Processing * try this out * this appears to just be calling ffmpeg in the background so no need * ffmpeg using optical flow on 10 sec 120fps to 240fps took 1 hour 20 min on $6/month DO server * ffmpeg using optical flow on 10 sec 120fps to 480fps OM at 1 hour 40 min with 1G on $6/month DO server. Increased to $12/month 2G and rerunning text/html 2022-11-17T17:26:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.johnharrison.cc/doku.php?id=projects:bird_feeder:videosamples&rev=1668705972&do=diff original video recorded at 120fps 1920×1080 original video 4x slower (30fps) original video 8x slower (15fps) video transformed to 240fps using optical flow then slowed down 8x (30fps) original video 16x slower (7.5fps) video transformed to 240fps using optical flow then slowed down 16x (15fps)