Afterimage Illusion

Stare at the black point on the center of the photo for ten seconds. The image will change automatically and you will see the photo in full color even though it's black and white. If you flick the screen, you can move to the next or previous photo.

An afterimage or ghost image or image burn-in is an optical illusion that refers to an image continuing to appear in one's vision after the exposure to the original image has ceased. One of the most common afterimages is the bright glow that seems to float before one's eyes after looking into a light source for a few seconds.