Reverse Frames in Sprite Sheet

how reverse frames of sprite sheet each frame of size 30x30 , horizontally aligned using imagemagick?

example:

http://i.stack.imgur.com/oioyc.png ->>> http://i.stack.imgur.com/7wr9v.png (edited)

you can this...

first, create 3 little 30x30 images in red, greenish , blue:

convert -size 30x30! xc:red red.png convert -size 30x30! xc:green green.png convert -size 30x30! xc:blue blue.png

then append them side side:

convert +append red.png green.png blue.png image.png

to this:

now crop 30x30 pixel frames, , reverse order of frames, re-append them output image.

convert -crop 30x30 image.png -reverse +append out.png

note:

for future reference, if wants same thing vertically instead of horizontally, alter +append -append.

imagemagick

Jaimee