As for generating. crop each frome from the original image then join them together.
Code: Select all
convert original.jpg \
\( -clone -crop 512x512+0+0 +repage \) \
\( -clone -crop 512x512+0+1 +repage \) \
\( -clone -crop 512x512+0+2 +repage \) \
\( -clone -crop 512x512+0+3 +repage \) \
\( -clone -crop 512x512+0+4 +repage \) \
\( -clone -crop 512x512+0+5 +repage \) \
...
-delete 0 animation.gif