Lab experiment
The Afterimage Illusion
Stare at the dot for twenty seconds. The picture turns black and white, and for a few seconds you will see it in color anyway.
You will stare at a strangely colored picture for twenty seconds, then it turns black and white. For a few seconds after that, you will see it in color. Nothing on the screen will be. Bright, colorful photos work best: flowers, food, a sunset, a parrot.
Drop a colorful photo here
Nothing is uploaded. The picture is prepared in your browser.