Zach Holman has written a ruby script called gifme which uses convert to create animated gifs like the one below.

Gifme runs convert with the -layers OptimizeTransparency switch, which for some reason, breaks the resulting gif. I haven’t quite figured out why yet. The above gif was generated with the following command:

$ convert -delay 100 -loop 0 -resize 600 *.JPG output.gif