"Can you still trust your eyes?" Incredible optical illusion

"Can you still trust your eyes?" Incredible optical illusion

A large part of our knowledge of the world comes from our vision, but how do you know that what you see is true? Can we really trust the eyes?

Using two ordinary gray cylinders as an example, are the following two cylinders different gray?

Actually: these two are exactly the same. Even if you know that you have an illusion, your eyes still don't want to see them as one color.

It's the same with coloring, to ensure that there is no editorial blindness.

In fact, if you search for Munker-White illusion theory, you will find many examples, and then PS, you will find that the colors are indeed the same.

The chessboard illusion is the same phenomenon. The color of square A is obviously darker than square B, but you know it now!

Although your eyes can't tell, you know that if you remove the things next to it, the colors of the two squares must be the same, so what happened?

The truth is: scientists can't fully explain this imagination. This involves very complex biological and neurological content.

Ultimately, our brain uses the surrounding environment to determine color and brightness. In other words, our brain determines our cognition by comparing the surrounding environment. Our senses, here refers to the purpose of the eyes, not to provide us with a certain color or specific characteristics of the surrounding things, but to understand what we see as effectively as possible, and then to interact reasonably with the surrounding environment .

The chessboard illusion takes advantage of this. Our brain knows that shadows will make the object look darker, so the brain will take it for granted that before removing the shadow, the B square is brighter than it was before.