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What Color is the darn dress?!

Started by February 27, 2015 11:50 PM
81 comments, last by L. Spiro 9 years, 8 months ago

Yesterday I mentioned that when I asked my coworker if he was up for games at 2:00 PM he immediately asked which colors I saw. I just answered and then quickly made jokes to get off the subject. He didn’t reply but he did show up for games at lunch.

During the play he started talking about it again, explaining how he saw white and gold.
Then another coworker agreed, and another.
So I took the chance to ask them how they were seeing white and gold, and according to their explanations I was correct. They are seeing blue pixels, but calculating white based on how they envision the lighting.

It turns out they know that they are doing the calculation into white, so no, I’d not call that bonkers. What I meant I would classify as “bonkers” (and I made this clear in the first post) is not that they see a white dress, it’s that they see white pixels, which is what it sounded as if some people were seeing. But even that isn’t a fair accusation to make since as dsm1891 mentioned there could be monitor issues, and later I also thought color-blindness might play a role.

Hodgman attributes his ability to see the colors for what they are to being engineered to be a graphics engineer. So am I, but so are the people at my office.
I think in my case it’s just that I trust the lighting in the shot. Blue lights aren’t exactly common, but blue dresses and over-exposed shots both are.

You're correct in noting that the blue part of the dress is represented by blue pixels in the image, but is it not equally important that the black part of the dress is represented by gold-colored pixels? The fact is, the actual image has "blue" and "gold," but definitely no white or black. In most cases, people will infer either that the "gold" part is actually black-ish, or that the "blue" part is actually white-ish, and I don't think one can fairly jump to the conclusion that one is rational while the other is "bonkers."

And I don't think it's completely correct to say it's just about "trusting" the lighting, either; you can very easily produce a substantially identical image (in terms of the colors present, at least) of a dress that's actually white and gold, using most phone cameras: in most cases, you just need to have the background light have a warmer hue than the light that's hitting the dress, which is an extremely common occurrence if you have the dress lit by, for example, fluorescent light from inside a shop, and the background lit by sunlight. The camera's automatic white balance will cause the fluorescent light reflecting off of white fabric to be rendered as blue, and the background as white.

We have enough—too many in fact—reasons to draw lines between each other.

Have you considered the possibility that calling people "bonkers" and basking in how strange it must be to think like them is likely to alienate people in exactly this way, whether or not it's intended to? I have a hard time reading your first post as anything other than an active and deliberate attempt to distance yourself from others, both from the not-at-all-neutral connotation of the words you use and from the general "these people are foreign and strange; I must study them as a curiosity" attitude that comes across, again, whether you meant it that way or not.

-~-The Cow of Darkness-~-

Spiro, I refer you to my earlier post, where I addressed some of this. I'm a bit confused by you revisiting that post given that you already responded to it and my response to your response. I think I was really quite respectful. In fact, you explicitly thanked me for not using ad hominem attacks just a few posts above...

It's not really relevant what the reasoning behind your comment was, beyond pedantic exercises of semantics, which are very nice but not what I'm after at this particular moment. What was actually problematic here is you calling people bonkers for involuntarily perceiving one particular, quite harmless optical illusion, because it's tantamount to calling them names because of a physical quirk that they might not be able to control, which is an act that is (to use Worf's terms) without honor. And yes, for some people it IS involuntary, regardless of how your coworkers explained it - that's how it was for me and how it still is for some of my coworkers. I am not colour-blind, nor are any of my monitors overly bright, as far as I know. Your coworkers seeing the same thing through different means does not somehow make my experience not have happened.

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"Blue lights aren’t exactly common"

Sky is most common light source that there is.

Sky is most common light source that there is.

  • “Sky” isn’t a light source any more than the moon is.
  • It’s actually violet (for fun, research why we see blue instead of violet).
  • In any case your argument, forgetting everything else and just taking it in context with my previous statement, would suggest that the sky would tint everything blue, as shown in the original image. That is, I am clearly referring to lights that tint white things blue noticeably, and that is simply not the case with “sky light” (blue tints on local objects may exist but are imperceptible to the naked human eye).
L. Spiro

I restore Nintendo 64 video-game OST’s into HD! https://www.youtube.com/channel/UCCtX_wedtZ5BoyQBXEhnVZw/playlists?view=1&sort=lad&flow=grid

It is very common that auto white-balance in digital cameras, even expensive ones, produce images with a blue tint, specially in shady conditions.

Its even more true for crappy cameras.

The image can be interpreted to look like the dress is in the shade, blocking the bright light source from behind.

In reality, the whole image is over-exposed, but if you see the dress part as under-exposed, it's not weird to assume the dress might be white.

That is at least my after-the-fact analysis of why my brain told me "that dress might be white", even though the color I clearly see is light blue.

I can't theorize over others experience or whether they "really see it" or not, and frankly I don't care.

Well, using get pixel, it turns out the rendering was definitely gold and blue (as opposed to the gold and white vs black and blue dilemma).

Of course, I haven't seen the original dress.

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Sky is most common light source that there is.

  • “Sky” isn’t a light source any more than the moon is.
  • It’s actually violet (for fun, research why we see blue instead of violet).
  • In any case your argument, forgetting everything else and just taking it in context with my previous statement, would suggest that the sky would tint everything blue, as shown in the original image. That is, I am clearly referring to lights that tint white things blue noticeably, and that is simply not the case with “sky light” (blue tints on local objects may exist but are imperceptible to the naked human eye).
L. Spiro

I was just referring that its so common to see small blue tint from sky light in objects that this might trick brains to interpret the dress color even that its taken clearly indoor.

Wikipedia snow field picture

Field-with-snow-champ-enneige.jpg

http://uk.businessinsider.com/what-is-blue-and-how-do-we-see-color-2015-2

Semi related.

http://uk.businessinsider.com/what-is-blue-and-how-do-we-see-color-2015-2
Semi related.

Interesting article. It’s also amazing to me that the tribe can’t spot the blue tile just because they don’t have a word for it.
Since I wasn’t raised that way, I can’t understand, but to me it’s like the set of green tiles below it. I don’t have a detailed word for every shade (I accidentally typed “shader” here, heh) of green but I can see one of them is slightly off from the others. Blue is significantly off from the others, but they have a hard time seeing it. Fascinating. Although they say their physiology is the same as ours, I wonder if they really have tested for color-blindness being a common trait among those people.

And I wonder if there are more colors we haven’t named yet and people will look upon as the same way we look upon Homer. Are there colors today that are obviously quite different, but we have a hard time seeing that difference just because we haven’t clearly named them?


Wikipedia snow field picture

Snow isn’t blue because of the color of the light reaching it. For all intents and purposes, generally speaking, the light coming from (or through) the sky is white.
Snow is causing itself to be blue, not the other way around.
http://www.webexhibits.org/causesofcolor/5C.html

This is why white cars are white. Bring a sheet of white paper outside and it is still white.

This is why I said most light sources are not blue. Outdoors, you are getting white light. Indoors, it most frequently ranges from white to yellow. And even when you do get a light that is casting more blue, it’s not as pronounced as in that picture (you can usually see the blue if you look at the light itself but hold a piece of paper a few feet away and the paper still looks 99% white). To get that much blue you’d have to set up a filter or go out of your way to find a lamp with an unusually blue emission (an LED perhaps).

This is why I tend to trust the light sources not be tinting things blue and I attribute the blue I see to the dress.
It might have been a different story had the dress shown a tint of yellow (not overly bright yellow, the kind of off-yellow you get with indoor lighting).


L. Spiro

I restore Nintendo 64 video-game OST’s into HD! https://www.youtube.com/channel/UCCtX_wedtZ5BoyQBXEhnVZw/playlists?view=1&sort=lad&flow=grid

Forget about perception. Everything is fine with perception :)

How does brain decide how the object is lit? Well, it depends on the SHAPE of that object.

Those who imagine it being worn by a person (convex) see it as dark blue/black.
Those who imagine it as a piece of cloth (concave) see it as bright blue/gold.

It comes down as object being imagined being convex/concave: http://brisray.com/optill/vision2.htm

Interesting how a photo could accidentally have this property.

Geez. This took some time. Now I can go to sleep. But I can no longer "flip" it back to "convex" in my mind :(

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