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Post by drumdrym on Feb 27, 2015 23:40:08 GMT
Colour-blindness-tests................. you may or may not have entered into the the presently running social media debate regarding the colour of a dress in an online published photo. For a run-down on the story try the BBC link below. www.bbc.co.uk/news/uk-scotland-highlands-islands-31656935My take on the dress colour is pale blue and gold, this led me on to look for colour blindness tests the best and most informative site I found is linked below where you can take two tests. Took both tests and they confirmed what I already new............. not colour blind. Might be of use to anyone who has difficulty with resistor colour codes. Ishihara Colour Test for Colour Blindness and/or Colour Arrangement Test for Colour Blindness www.colour-blindness.com/colour-blindness-tests/Regards, Alan
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Deleted
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Post by Deleted on Feb 28, 2015 0:13:17 GMT
I see that dress as black & blue but Val sees white & gold. Bizarre!
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Post by elysion on Feb 28, 2015 2:39:42 GMT
For me, colour-blindness is an old story. I was a prepress specialist for almost 20 years. Colour-blindness is a big no-no there. Usually, you'll have to pass an aptitude test before the apprenticeship. At least in Switzerland these tests are mandatory. That's why I'm really sure that I do not have it.
The last job I've had was in the IT deparment of a company which sold printing systems. Perhaps it was a strange coincidence, but I've met a couple of colour-blind people there. IIRC, colour-blindness is much more common for men and only very seldom for women. About 9% of men have a kind of colour-blindness. There are different variations.
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Rabbit
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Post by Rabbit on Feb 28, 2015 7:56:56 GMT
In the 70s, there used to be lessons for the recorder in how to read music. Each note was a different colour.
You can imagine what some kids might have made of that ........
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solderdude
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Post by solderdude on Feb 28, 2015 8:45:51 GMT
I see that dress as black & blue but Val sees white & gold. Bizarre! Same here... The wife sees it as white and gold and I as blue and black. Of course zooming in on the pixels or analyzing the colour should tell you what's real or not. I have a sneaky suspicion it is brain and perception related and suspect the brain can do similar 'tricks' with audio perception. The mind is easily fooled and our 'sensors' and brain are highly flawed. Strangely enough when it was on the news yesterday I clearly saw blue and black where in the posted video I clearly saw white and gold.
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Rabbit
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Post by Rabbit on Feb 28, 2015 8:52:30 GMT
A student showed me that picture on her phone yesterday. She saw white and gold and I saw blue and black.
Looking at it on this site, I see white and gold and so do the rest of my family. It's very puzzling but perhaps a good indication of what people perceive in headphones and shows just how easy it is to get it wrong.
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Deleted
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Post by Deleted on Feb 28, 2015 8:59:43 GMT
It could also be browser dependent. Firefox - I think uniquely - allows the gamut to be AdobeRGB whereas other browsers cater only for sRGB.
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Rabbit
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Post by Rabbit on Feb 28, 2015 9:08:42 GMT
That could be why I'm seeing it as white today. I'm looking at it on an IPad. I'll try a computer.....
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Deleted
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Post by Deleted on Feb 28, 2015 9:47:33 GMT
Having said what I said I see it as black & blue everywhere.
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Rabbit
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Post by Rabbit on Feb 28, 2015 11:53:15 GMT
What I don't get is that if I zoom in, it stays the same colour, so any background information clues are not there and I still see it incorrectly.
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solderdude
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Post by solderdude on Feb 28, 2015 15:15:36 GMT
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Post by hifidez on Mar 1, 2015 8:55:39 GMT
Human visual perception is strange and fascinating. Would you believe it is possible to view full colour images by projecting them with just mixture of red and white light? www.greatreality.com/Color2Color.htmDerek
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