***CORRECTION:In the video, I keep harping on the black bars being six times the width of the spaces in between them. This will work fine if you have a seventh frame of animation. If you are using six frames of animation, the black bars should be five times the width. My bad. Many apologies if this caused any frustration and thanks to my readers who caught it!
Click here to download ZIP file containing animation materials.
Link to Rufus Seder's website, who I believe, pioneered this technique.
Link to Gallop: A Scanimation Book