Wednesday, October 26, 2022

Is That Dress White And Gold Or Blue And Black? The New York Times

blue and black dress science

Our eyes are able to assign fixed colors to objects under widely different lighting conditions. But the photograph doesn’t give many clues about the ambient light in the room. Or is the whole room bright and all the colors are washed out? Different people may pick up on different visual cues in the image, which can change how they interpret and name the colors. On a cold winter afternoon in February 2015, Cecilia Bleasdale took a picture of a dress that she meant to wear to her daughter’s wedding. A couple of weeks later, one of her daughter’s friends shared that cellphone snapshot on Tumblr, where it quickly went viral.

blue and black dress science

"I initially thought it was white and gold," says Neil Harris, our senior photo editor. "When I attempted to white-balance the image based on that idea, though, it didn't make any sense." He saw blue in the highlights, telling him that the white he was seeing was blue, and the gold was black. And when Harris reversed the process, balancing to the darkest pixel in the image, the dress popped blue and black. "It became clear that the appropriate point in the image to balance from is the black point," Harris says. The fact that dresslike images can’t be generated at will suggests that we don’t fully understand what drives this ambiguity.

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Even Neitz, with his weird white-and-gold thing, admits that the dress is probably blue. "Then I cut a little piece out and looked at it, and completely out of context it's about halfway in between, not this dark blue color. My brain attributes the blue to the illuminant. Other people attribute it to the dress." Other photographs show that the dress is actually blue and black. In this second photograph, the white wedding dress, dark curtains, visible skin tones and body shadows help us accurately judge the amount of ambient light in the room.

However, it is generally agreed that the colors of illusion dresses appear different in photographs than they do in person. When the human eye perceives light, it reflects off whatever we look at, enters the eye, and hits the retina. The brain then processes the image, takes the right color out of the light that bounces off what the eyes see, and subtracts that color from the real color of the object.

Here’s why people saw “the dress” differently.

Then head to a dark room for half an hour, before looking at the dress there on a black background – or just never come back, and avoid the whole argument. The same kind of system is found in cameras, and is called white balance. That allows the camera to do the same thing the brain does – deciding what should be white, within the image, and adjusting the colours accordingly. The problem is that the brain has to avoid seeing the colour of the light reflecting off an object, and just see the colour of the object itself. If it sees a white shirt bathed in yellow sun, for instance, it needs to subtract the yellowness of the sun so that it can see the whiteness of the shirt – and it normally does. Which colour your eyes see is in fact a consequence of the way our eyes have evolved, and tells you important things about how your eyes work out colour in a world lit by sunlight.

blue and black dress science

But that still doesn't explain why some people's brains assume the lighting is one way and some assume the opposite. For example, if your brain assumes the lighting on the dress is very dim, it will assume the dress itself is highly reflective, or white and gold, Williams said. But if your brain assumes the opposite , it then makes the judgment that the dress itself must be darker, hence blue and black. The Dress as seen on the internet shown in A and the actual blue and black dress is shown in B. C shows an extracted image of the Dress consisting of vertical stripes of decreasing spatial frequency that was used in the present study to explore perception of the dress with limited contextual cues.

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So what color you see depends on individual perception and the environment in which you're looking at the photo. And as for Bleasdale and her partner Paul Jinks, they later expressed frustration and regret over being "completely left out from the story." The phenomenon was so focused on The Dress that they were left completely out of the picture. Many omitted their role in the discovery, and used the photograph for commercial uses. Cone excitations were used to compute cone contrasts and additional metrics to determine the relative contributions of L, M and S cones as well as opponent mechanisms.

blue and black dress science

The blue and black dress, also known as “the dress that broke the Internet,” is a photograph of a dress posted on the social media website Tumblr in February 2015, which became a viral Internet sensation. The photograph, which was originally posted on the blog site What Color Is This Dress? In the case of the blue and black dress, the brain interprets the colors differently depending on whether the dress is seen in shadow or in direct light. The blue and black dress illusion highlights the importance of lighting in color perception. It also shows how the human brain is constantly interpreting the world around us, and how our perception of reality is often subjective.

Each subject wore an elastic headband to secure the active electrode in place and electrode impedance was maintained at ?5 kilohms. The VEP stimulus was a high resolution transparency of the original dress image retro-illuminated by a flashing neutral white background (100 cd/m2) from a calibrated VEP monitor . The dress stimulus subtended an angle of 12.2° x 16.2° degrees and was viewed binocularly at 1m in a darkened room with subjects optimally corrected for the viewing distance.

The retailer experienced a huge surge in sales after the The Dress incident. Ceitlin McNeill, a friend of the couple, was also confused after seeing the dress in person. She was a member of the Scottish folk music group Canach, which performed at the wedding on Colonsay. They even said that they almost failed to make it on stage because they were so busy discussing the dress. The colorimeter positioned over the 22” LCD display with magnified components of the Dress image. Data Availability StatementAll relevant data are within the paper and its Supporting Information file.

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