Is the national controversy about a skirt blue, black or platinum?

Whether the skirt is blue, black or platinum is a national controversy. For blue and platinum, the two colors are very different.

You can see it directly with the naked eye. So I don't know what the problem is.

What color is the skirt in WeChat circle of friends? Whether it's platinum or blue-black Photoshop, the color experts found that the real color of the skirt should be "blue+black" after adjusting the white balance option of the photo. Netz, a neuroscientist at the University of Washington, has been studying individual differences in color vision for nearly 30 years. He thinks the color of this skirt is one of the biggest individual differences he has ever seen. "The background color may affect our judgment of true color."

Conway, a neuroscientist who studies color and vision at Wellesley College, said: "When you see this photo, your brain is correcting this color difference according to sunlight. So if people ignore the blue part of the ambient light, they see white and gold; If they ignore the golden part, they will see blue and black. "

Duang told me whether this skirt is white, gold or blue-black. Don't brush this stalk again. Just to grasp the poor color perception of human eyes, let some people see that it is platinum and some are blue and black. . . . .

What color is that flaming blue, black, white and gold dress in Weibo? (Adam Rodgers/Wen, Shell Translation Learning Group/Translator) After a blue skirt of former White House intern Monica Lewinsky, another blue skirt has become a source of consternation for thousands of people.

Yes, this skirt is blue. )

On Thursday, a picture divided the internet into two camps-admit it, the internet has always been like this. But in the past half a day, people on social networks have been discussing whether this beautiful slim lace dress is blue, black or platinum. Neither camp will compromise. This is not only related to social media, but also to the biology of primates, and how human eyes and brains have evolved to be suitable for seeing things in a sunny world.

Light enters the eyes through the lens, and different wavelengths of light correspond to different colors. When light shines on the retina at the back of the eyeball, the pigment is sensitized and sends signals to the visual center through nerve connections, where the brain processes these signals into images. Although strictly speaking, this kind of light is limited by the wavelength of the light source, you don't have to worry. Your brain will automatically recognize what color the light reflected by what you see is, and cut this color from the "real" color of the object. "Our vision system will discard information about the light source and extract information about the reflected light." Jay Neitz, a neuroscientist at the University of Washington, said, "I have been studying individual differences in color vision for 30 years, and this (white and gold) is one of the biggest individual differences I have ever seen."

Original photo with different white balance adjustments (middle) and platinum (left) or blue-black (right). Image source: swiked

Usually, this system works well. However, this photo touches the limits of some senses. This may be because the human brain is encoded in this way. The evolution of human eyes is to see things clearly in the sunlight, but the color of sunlight will change, from pink at dawn to blue and white at noon, and then back to pink at dusk. Bevil Conway, a neuroscientist who studies color and vision at Wellesley College, said: "When you see this picture, your brain is correcting this chromatic aberration according to sunlight. So if people ignore the blue part of the ambient light, they see white and gold; If they ignore the golden part, they will see blue and black. " (Conway, however, saw blue and orange himself. )

We asked our excellent picture design team to do some work on this picture in Photoshop, and gave the RGB values of some color blocks in the picture. This picture will definitely answer "What color is it?" . The truth is about to surface.

Take the picture version on Buzzfeed as an example. In this layout, PS says that blue is indeed blue, but this is probably because of the background, not its real color. "Look at the place where your RGB value is equal to R93, G76 and B50. If you just look at these numbers and ask what color you are, what would you say? " Conway asked.

Um ... a little orange?

"That's right," Conway said. "But you played a bad trick-this is on the premise of answering your hand. If you put this color on a neutral black background, I bet it will appear orange. " What he said was also tried in Photoshop. He thinks the color of the skirt should be blue and orange.

The point is, your brain tries to infer the ambient light from the photo and then judge the color of the skirt. Even Neitz, who thinks the skirt is white and gold, admits that the skirt is probably blue. He said, "I also printed out the photos. Then I cut a small part and looked at it carefully. After completely excluding the ambient color, the color of the skirt is between the two, not so dark blue. My brain thinks that blue comes from an external light source. Others think that blue is the color of the skirt itself. "

"At first I thought it was white and gold," said neil harris, our senior photo editor. "When I adjusted the white balance of this picture according to this idea, I found that I couldn't adjust it well." The blue he saw in the highlights told him that the white he saw was actually blue and the gold was actually black. He reacted by adjusting the white balance with the darkest pixel in the picture, and the skirt turned blue and black. "Things are clear. To adjust the white balance of this picture, the appropriate point is the dark part. " Harris said.

"White/Gold" or "Blue/Black"?

When the environment changes, human vision will also change. Conway said: "Most people will think that blue on a white background is blue, but some people may think that blue on a black background is white." He even put forward a guess, perhaps joking: since the visual deviation between white and gold can explain the color of the skirt seen in strong sunlight, "I think night owls who come out during the day are likely to think that the skirt is blue and black."

At least, we can agree on one issue: people who think skirts are white are absolutely wrong. (Editor: Calo)

Whether the news broadcast skirt is blue and black or platinum is mainly divided into two camps: "blue and black" and "platinum". Now the debate has formed a situation of throwing tomatoes and eggs at each other, and will soon escalate into a situation of throwing tomatoes and scrambled eggs at each other. My channel has also been arguing, and each is going to sign up for the other in Tongren Hospital ~

At that time, the dispute between salty tofu and sweet tofu, sweet zongzi and salty zongzi may not have reached such a tragic level. But, unlike those debates, what color is this dress? Is there a correct answer?

Whether migrant workers are labor disputes or labor disputes is not directly related to whether they are migrant workers or not. Generally speaking, it is a kind of labor relationship that migrant workers enter the city to establish management, which is managed by qualified units and paid for their labor. If both parties have disputes, they can apply for labor arbitration locally.

Is the world blue or white? If you are in a bad mood, he may be white, but after this white, it is blue! Come on! Not white, blue!

Is the human heart black or white? People's hearts are generally red, but when people walk out of the moral bottom line, they are described as "black hearts" …

Is the skirt you see black basket or platinum black blue? The correct answer is also black and blue.