Optical illusion of strawberries stumps the internet when creator reveals they AREN'T red

At first glance, the strawberries in this photo appear red. Right?


But as experimental psychologist and image creator Akiyoshi Kitaoka explained, there are no red pixels in the photo.

Yet, somehow, the strawberries look red to us anyway.

The brain teaser that has left Twitter befuddled was uploaded Monday has since inspired thousands to weigh in and led to many disagreements.

See Twitter reactions to the photo:

Twitter reactions to optical illusion of strawberries
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Twitter reactions to optical illusion of strawberries
@AkiyoshiKitaoka I beg to differ, the pixels have a value in the red, as shown by the RGB pixel values. https://t.co/4sul8HOkW5
@AkiyoshiKitaoka why don't the strawberries look red to me? I think they look grey!
@AkiyoshiKitaoka There are red pixels. https://t.co/JKMwuTIfEn
@AkiyoshiKitaoka I reduced the "Blue" and "Green" pixel values by 50% to get this. Brain does the same, I'd say. https://t.co/zPNl14zBd0
.@AkiyoshiKitaoka Depends on your definition of red. The pixels in question aren't black, cyan, yellow too.
@AkiyoshiKitaoka they look brown
@AkiyoshiKitaoka Side-by-side with an edited version. Berries are the exact same in both images. Maybe this will he… https://t.co/KYgXewt2fQ

Kitaoka explained the confusing illusion: "Illusion of strawberry by the two-color method. Although this image are [sic] all made of the pixels of the cyan (blue-green), strawberries appear red."

Similar to the blue dress that divided the internet when users argued over its actual color - the strawberry illusion is created by a phenomenon known as color constancy -- the ability to perceive colors of objects, invariant to the color of the light source.

SEE ALSO: This optical illusion of a man walking on water has the internet freaking out

The attention has caused Kitaoka's Twitter following to explode this week, prompting him to share the original image of the strawberries before he manipulated it.

He also took the opportunity to share some of his other favorite illusions, including these "moray eel" rows that seem to move even though they are stationary.

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