World's Best Optical Illusion

This optical illusion relies on a principle called "Chromatic Adaptation".

An object may be viewed under various conditions. For example, it may be illuminated by the sunlight, the light of a fire, or a harsh electric light. In all of these situations, the visual system indicates that the object has the same color: an apple always appears red, whether viewed at night or during the day. This feature of the visual system is called chromatic adaptation.

Have you ever entered a movie theater on a sunny afternoon? The room probably appeared completely dark but as your visual system adjusted to the reduced level of light you were able to see better after a few moments.

This "adaptation mechanism" allows our eyes to recover from an oversensitivity to a particular stimuli. "Chromatic adaptation" occurs when our eyes adjust to certain color stimuli. Chromatic adaptation is one of the more easily fooled aspects of vision, and is prone to some of the most spectacular optical illusions.

I'm so sorry, I don't know the name of the song. The audio was added using audioswap to add some liveliness, however youtube has removed this feature. :(

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[kemuan01]

Ohh shit ohhh shit i just got it!!!! ...........

[HerpKid274]

Lite to ur eyes, your eyes don't respond strongly to the colors tht were in the negative. You see white lminus the colors in negative, which produces the illusion of a correctly colored photograph

[HerpKid274]

The "colorized" photo is an after image. You see an after image after you have stopped looking at something-in this case the color negative. When you stare at the negative, your eyes became adapted to those colors. When you suddenly look at the black-and-white image, which is reflecting white

[OOZiTen]

wow i thought it actually was in color.. pretty cool

[Scripterrific]

I think I know how this works. You take the colored image and invert the colors. This is the image you stare at. Then you present the black and white image, and our brain gets bored with the colors you presented so it intensifies the inverted colors which are the real colors of the image. It's like when you were those colored 3D glasses for a while; one eye sees red more and the other one see blue more. Same principle.

[Scripterrific]

I wonder if this same technique can be used to put other elements in the picture, like people that aren't even there.

[handsomegargoyle2]

i was like.... this is crap all it does is change to colour. OH FUCK IT IS BLACK AND WHITE

[xpoondiggy]

very impressed by this , how does that work?

[misty11]

HOW IN THE WORLD? WOW, the eyes and the brain are more intresting then i first though.

[tinynicktune]

Interesting.