video to animated gif

terminal-video-to-gif

#https://github.com/skepticli/tutorial-screencast-to-gif
#command line

mkdir frames
ffmpeg -i my-screencast.mov -r 3 frames/image.%03d.png

#At this point it might be useful to go into your frames
#directory and delete extra images, most likely frames at
#the start and end of your video/gif

#Optional: Make images smaller
cd frames
mkdir smaller
mogrify -resize 900x -path ./smaller *.png

#And now we convert all those image into a gif
convert smaller/image.*.png ../output.gif

Here's an additional tool to use along with the above code: https://superuser.com/questions/875342/how-can-i-repeatedly-take-a-screenshot-of-a-specific-area-in-os-x

Programmed screen grabs. I've used this when pulling from Google Earth Engine.

Options for optimizing your output.gif:

gifsicle -i created-gif.gif --dither --colors 128 --lossy=30 --resize-width 640 -V -o created-gif-sm.gif