Scientists say your brain tricks you into perceiving color in this drab black and white photo.
Photo: AP

A mind-boggling optical illusion has divided the internet after appearing to show a black-and-white picture of girls—in color.

Optics, illusions, and basic science—these things all combine to trick you into believing that the photo you are viewing is in color. In fact, the photo is completely black and white.

On closer inspection, tiny colored lines have been added. That’s not important.

The snapshot is said to trick the brain into filling the blanks with the mind, giving an illusion of solid colors to appear where there are none.

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