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Out of the Blue

Thanks Ant for sending along a link to a Reverse Color Blindness Test, perhaps recalling my previous mentions of being color blind myself. I found a couple of tidbits in this article particularly illuminating: I have always have excellent night vision and an immunity to camouflage, and never before realized that these are likely positive side effects of my condition: "Color vision deficient people have a tendency to better night vision and, in some situations, they can perceive variations in luminosity that color-sighted people could not. It might also be worth mentioning how U.S. Army discovered that color blind people could spot “camouflage” colors that fooled those with normal color vision!" Go figure!

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17. Re: Out of the Blue Jan 6, 2012, 00:23 Dev
 
Blue wrote on Jan 4, 2012, 12:48:
PHJF wrote on Jan 4, 2012, 02:52:
According to the pictures on the page you linked, what you perceive as red is what a normal viewer perceives as a shade of green (olive, to be precise)... muddy, brownish green.

I don't know what to make of that page. I don't have a problem making out any colors, I can just confuse some colors out of context, mostly in the green range. But my view of a traffic light seems the same as the normal sight picture, and nothing like the colorblind version, but I can't explain how being colorblind to start with might impact this observation.

In any event, that page does not seem to reflect my own experience.
Blue,
There's at least 3 main types of color blindness and they all have varying degrees.
Wiki has a nice summary, plus on the right near the top there's several pics of what the color spectrum looks like to various color blind types.
http://en.wikipedia.org/wiki/Color_blindness
 
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