The Ex-Communicator - Optical illusion

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June 25th, 2009

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04:45 pm - Optical illusion
An extremely powerful optical illusion

You see the blue and green spirals?

Amazingly they are the same colour: "RGB color values in both spirals are 0, 255, 150".

I copied it to Paint and cut-and-paste, and they are definitely the same colour. Wow.

From metafilter.

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Comments:

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From:[info]matildabj
Date:June 25th, 2009 03:58 pm (UTC)
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Fab! I love optical illusions. That one really is amazing.
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From:[info]communicator
Date:June 25th, 2009 04:03 pm (UTC)
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Good isn't it? Often you can make yourself see the real thing, but I literally can't.
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From:[info]matildabj
Date:June 25th, 2009 04:07 pm (UTC)
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I managed to see the blue turning a bit greener at the far right of the image, but that's about as near as I can get.
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From:[info]trixieleitz
Date:June 25th, 2009 10:42 pm (UTC)
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Me, too; also at the top left. The bands are wider there, so the effect of the contrasting colours isn't so pronounced, I think.
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From:[info]pennski
Date:June 27th, 2009 09:30 pm (UTC)
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In the magnified view I found the "blue" was more green than before. But it was still pretty blue!
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From:[info]ninebelow
Date:June 25th, 2009 04:04 pm (UTC)
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I copied it to Paint and cut-and-paste,

This is much more sophisticated than me: I tried to crop it with my fingers on the screen whilst turning my head and squinting.
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From:[info]communicator
Date:June 25th, 2009 04:15 pm (UTC)
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I must admit I did that first
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From:[info]steverogerson
Date:June 25th, 2009 04:43 pm (UTC)
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I didn't believe this was true, but I copied it to Photoshop and they are the same.
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From:[info]communicator
Date:June 25th, 2009 05:38 pm (UTC)
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The other way you can check is high magnification
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From:[info]glitterboy1
Date:June 25th, 2009 05:44 pm (UTC)
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Heh. That's good!

Knowing that it was an optical illusion of *some* kind, I looked at it for a while - what was the trick, how was I being fooled? That didn't even cross my mind....

Thanks for the pointer.
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From:[info]merrymaia
Date:June 25th, 2009 05:46 pm (UTC)
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That is very cool!
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From:[info]iainjclark
Date:June 25th, 2009 09:21 pm (UTC)
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Very cool.

Also: Ow! My eyes, my eyes!

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