Lately I showed you only serious visual optical illusions, so I thought that today we should have some fun. A simpler version of this illusion was also a participant in “Best Illusion of the year contest”, but a little back, in 2005 I mean. It is fascinating how our mind plays tricks on us.
What to see?
I think I don’t have to explain what you have to see in this image. When I first looked at this picture I got dizzy because of the wobbly movement. In the middle of the picture there are two cars that appear to be moving towards us. Even if the cars would be missing you will still have the impression that everything is moving.
How it works?
This image is actually stationary and it moves only because our perceptual system tries to adapt to the mixture of colors. If you look carefully at the image you will notice that everything is moving inward, except the cars that seem to go the opposite side. If you try to fixate a point in the picture you will observe that the movement slows down.
The illusion is created by our revised version of the peripheral drift illusion, in which the direction of illusory motion is black-to-dark-gray and white-to-light-gray. In our image we operate with blue that correspond to dark gray and yellow that correspond with might gray.