[murtali]

Haha, this thing is hilarious. Great job. I wonder if the author manually went through images locating the finger or there was some automated way of doing it. I did notice that if you move the pointer is certain ~20x20 areas the same picture appears. I'm guessing the set of images is small enough to just manually do it.

[junker37]

If the image resolution software isn't good enough, and there's a lot of images, you could mechanical turk it using the reverse site. Show on image and have the user click on the finger (or none).