What do you see when you look at this picture? Do you see a white, and gold colored dress; or a blue, and black dress? Many say its blue and black, but others say it's white and gold. Some say that they see both.
The dress in reality is black and blue, so why do people see white, and gold? “What’s happening here is your visual system is looking at this thing, and you’re trying to discount the chromatic bias of the daylight axis,” neuroscientist Bevil Conway told Wired‘s Adam Rogers. “So people either discount the blue side, in which case they end up seeing white and gold, or discount the gold side, in which case they end up with blue and black.”
Basically, some peoples brains work differently. Some brains will push the blue out and only see white, or the brain will have the ability to see the blue. The way the light in the picture is shown also plays tricks with your brain, there is a huge contrast between the blue and black and the white light int he background, resulting in some people not having the ability to see the full color of each the blue and black, and just see a more faded out color such as white and gold.
Another factor that could change how you see it is if the picture was modified in Photoshop or other programs. In the programs, people can make the picture exceptionally lighter, taking out the color, or make the picture darker, resulting in the colors being deeper, thus making it either harder to see the blue, or easier to see the blue.
:Dan Diamond, Forbes.
:Adam Rodgers, Wired