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Author Topic: What color was the dress?  (Read 14860 times)

digitaldog

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Re: What color was the dress?
« Reply #20 on: February 28, 2015, 02:53:51 pm »

Jesus, it is like talking to a deaf person.
And this is like talking to a blind one. Are you trying to tell us that just the two examples below I posted match?
The exposure examples shown are all over the planet in just the video introduction. JUST the one example of supposedly the same image I posted from the web don't look the same that supposedly show the 'same' black and blue dress upload. This is mangled image data looking different because it IS different. The screen capture I posted below isn't different due to an optical illusion, the data is different or treated differently.
 
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elliot_n

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Re: What color was the dress?
« Reply #21 on: February 28, 2015, 02:59:54 pm »

The fact that images distributed around the web end up looking different is a red herring. (Or is it blue?)

As Slobodan has stated, the phenomenon of the white/gold/blue/black dress is about several people making different interpretations of the SAME image. On the BBC News the roving reporter was showing people the image on his iPad. Some would see a white/gold dress, others blue/black.
« Last Edit: February 28, 2015, 03:03:14 pm by elliot_n »
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digitaldog

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Re: What color was the dress?
« Reply #22 on: February 28, 2015, 03:04:38 pm »

http://www.wired.com/wp-content/uploads/2015/02/Untitled-12.jpg

From Wired. Ignore the dress (hold something up to block it), view the bkgnd and that red item and surrounding area to the right of the sleeve. They don't appear the same? They are not the same. Got nothing to do with a dress. The exposures are not the same for one.



Take this untagged file from Wired into Photoshop, assign sRGB and place a sampler over that red as I did. I get the following values (left to right):

R255/G203/B155

R252/G130/B119

R255/G75/B87

Optical Illusion? No, difference in RGB data and exposure. Now take the optical illusion I provided in my article below and do the same. Same RGB values.

Some of you are being duped as fools with this nonsense. At least as provided by the web of these various images.
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digitaldog

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Re: What color was the dress?
« Reply #23 on: February 28, 2015, 03:10:11 pm »

When I scrolled back up the dress had switched to blue/black.
Well I see the image on Wired visually change by simply moving my cursor into the web content so what's that all about? It's NOT an optical illusion.
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Slobodan Blagojevic

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Re: What color was the dress?
« Reply #24 on: February 28, 2015, 03:21:01 pm »

Jesus, Andrew, I knew you are dense, but not this dense. It isn't about "moving the cursor" or two or three images seen either simultaneously or in sequence, it is about seeing a single image, on a single device, by different people. How much simpler can I expain that!?

elliot_n

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Re: What color was the dress?
« Reply #25 on: February 28, 2015, 03:28:21 pm »

Andrew, you've posted Wired's trio of images, but I'm not sure you understand what they are. The central image is the image circulating around the web and causing all the confusion. The images on the left and right are obviously different. They've been photoshopped by the Wired photo editor to represent a white/gold dress and blue/black dress. These two images are not the image causing confusion. Just the central one.
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digitaldog

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Re: What color was the dress?
« Reply #26 on: February 28, 2015, 03:30:14 pm »

Jesus, Andrew, I knew you are dense, but not this dense. It isn't about "moving the cursor" or two or three images seen either simultaneously or in sequence, it is about seeing a single image, on a single device, by different people. How much simpler can I expain that!?

Provide me a means to see the image whereby I view a visual difference without a numeric one will you? I've seen none provided as yet. While the optical illusion I provided does exactly that AND is obviously a real optical illusion. I'm not saying optical illusions do not exist, JUST THE OPPOSITE by providing them over the years and again today. I'm stating that every attempt to show this dress image is done with differing images that look different because THEY ARE DIFFERENT. I'm also not suggesting an optical illusion of said dress is impossible! None has been provided. Every example shows different colors because the colors ARE different.
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elliot_n

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Re: What color was the dress?
« Reply #27 on: February 28, 2015, 03:35:05 pm »

Provide me a means to see the image whereby I view a visual difference without a numeric one will you? I've seen none provided as yet. While the optical illusion I provided does exactly that AND is obviously a real optical illusion. I'm not saying optical illusions do not exist, JUST THE OPPOSITE by providing them over the years and again today. I'm stating that every attempt to show this dress image is done with differing images that look different because THEY ARE DIFFERENT. I'm also not suggesting an optical illusion of said dress is impossible! None has been provided. Every example shows different colors because the colors ARE different.

Er, he's already given you an example. Him, his daughter and her friend all looking at the same image on a phone and seeing it differently. That is the story.
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elliot_n

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Re: What color was the dress?
« Reply #28 on: February 28, 2015, 03:37:51 pm »

You mean just like this:

BFD!

I don't get this. What is it demonstrating? The images look very different to me. Are you going to tell me they're the same?
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digitaldog

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Re: What color was the dress?
« Reply #29 on: February 28, 2015, 03:39:40 pm »

Er, he's already given you an example. Him, his daughter and her friend all looking at the same image on a phone and seeing it differently. That is the story.
So you and he can't provide ME that experience? Telling.
Trust but verify.
Meanwhile, my optical illusion passes the smell test and, every example of this dress image I've seen has differing values. Again telling.
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elliot_n

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Re: What color was the dress?
« Reply #30 on: February 28, 2015, 03:42:50 pm »

So you and he can't provide ME that experience? Telling.

You can easily verify the test with your friends. Try it.
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digitaldog

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Re: What color was the dress?
« Reply #31 on: February 28, 2015, 03:46:59 pm »

I don't get this. What is it demonstrating? The images look very different to me. Are you going to tell me they're the same?
Yes.
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elliot_n

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Re: What color was the dress?
« Reply #32 on: February 28, 2015, 03:50:33 pm »

Yes.

Ok. They look very different to me. The numbers in photoshop are very different. In what way are they the same?
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digitaldog

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Re: What color was the dress?
« Reply #33 on: February 28, 2015, 03:53:15 pm »

One has the wrong embedded profile (initially).
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elliot_n

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Re: What color was the dress?
« Reply #34 on: February 28, 2015, 03:56:48 pm »

Right. That's not what this story is about. It's about people seeing the SAME image differently. Radically differently.

Your approach to this story is a good example of how blinkered 'experts' can be.
« Last Edit: February 28, 2015, 03:58:58 pm by elliot_n »
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digitaldog

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Re: What color was the dress?
« Reply #35 on: February 28, 2015, 04:03:28 pm »

Right. That's not what this story is about. It's about people seeing the SAME image differently. Radically differently.
That's what we're being told... As yet, many of the image posted looks different and ARE different. I've illustrated this already. Meanwhile, the concept of an optical illusion, one no color savvy user would ignore and something most here should accept and understand has been posted and the colors are identical.
Is the idea that an optical illusion of color something new to the OP or some of you here, that make this silly dress new worthy to you?
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elliot_n

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Re: What color was the dress?
« Reply #36 on: February 28, 2015, 04:12:57 pm »

Here's the BBC reporter out on the street, with the image on his iPad (this might not be viewable outside the UK):

http://www.bbc.co.uk/news/uk-31655236

5 people say white/gold. 5 people say blue/black.

Cockney chap to reporter: 'Are you turning my spanner?'. Same question to Andrew.
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fdisilvestro

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Re: What color was the dress?
« Reply #37 on: February 28, 2015, 05:05:17 pm »

I see it blue (very light) and gold (dark). no white or black anywhere (white, black or grey should be completely neutral IMO)
The attached image shows a pure white and black patch (255,255,255 - 0,0,0) to the left and two patches with RGB values sampled from the dress. I then tested varying the exposure from -4EV to +2EV (after that the blue patch clips to white) and still looked blue and gold to me.

digitaldog

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Re: What color was the dress?
« Reply #38 on: February 28, 2015, 06:08:40 pm »

I see it blue (very light) and gold (dark). no white or black anywhere (white, black or grey should be completely neutral IMO).
Me too, it's the only way I've seen it within the vastly different renderings from differing sites. My wife see it that way too. I asked the three Whippets what they see since dogs have different color vision than humans. They showed total non interest in the image as I suspect most people should have in the first place.

Meanwhile, the somewhat famous Adelson optical illusion has been consistent among the hundreds of workshop precipitants I've shown it to over the years. No one seeing for the first time have even reported NOT saying that A and B appear different prior to showing the 'proof' they are in fact the same color. The numbers have never been different either.

http://web.mit.edu/persci/people/adelson/checkershadow_illusion.html
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LenR

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Re: What color was the dress?
« Reply #39 on: February 28, 2015, 06:26:57 pm »

Sorry but I thought it might be a fun conversation.
I didn't expect the Spanish Inquisition!
Me thinks there might be a little lightening up called for here:)
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