Color "Blindness"

Question:

Is it possible that some people who have been "determined" to be "colorblind" in terms of RGB, can actually see a larger range of RGB than the normal, which expands their Delta E?

In other words, are some "ColorBlind" individuals actually able to see beyond the visual spectrum, which then expands the variation in comparison to that of those with that can only see the lesser ranges?


:)
-Lou

BTW,

If DeltaE was created in 1976, {Please correct me if I'm wrong} HTH were you diagnosed as colorblind pre'76, and it is uncontested post '76???


BTBTW!!!

How does the lack of detecting patterns in floating multicolored dots determine that you are colorblind? I'll bet you that if any of those dots were side by side of a different colored dot, many of these "Colorblind" individuals would tell you that they were different colors.


Put those touching pairs in a group of touching pairs of dots that were, paired, identical, and again, these supposed color blind individuals could identify the pairs that were different and those that were the same.


But, my hypotheses is that many "color blind" individuals have an expanded color visual range in comparison to the norm.

They only test range in hearing, not color.
They don't test if you can detect the difference in subtle tones in hearing, but they do in color.


WHY!!!

Again, I'll bet you dollars to doughnuts, some "ColorBlind" Individuals can see their microwave glow.

-Lou

BTBTW,

One more way to state this, I presume to hypothesize that some "color blind" individuals actually percieve beyond the "visiaul spectrum", that which "normal people" are used to be judged "normal", but in actuality, those "normal" people in relation to those who can see more are in actuality impaired in comparison.

-Lou

I'm colourbliond and can see my microwave glow. This is due to poor wiring on the output end rateh rthan superior wiring on the input end.

Retinal nervous response for the visible spectrum is not linear, our eyes are most sensitive to green and least to blue, hence digital camera CCD's have more green sensitive sensors than red or blue.

Some people's eyes are less sensitive to green and red and thus the confusion with red/green. Although there is no reason to suggest they'd have better blue vision because of this.

I suspect that everyone has different ability to see into the infra-red or ultraviolet ends of the spectrum, however probably not to any useful extent.

I wonder what UV really looks like (eg. the way insects see it).

I have always wondered this: when I see something that I proclaim to be 'red', or 'green', and someone else agrees, are we seeing the same thing?

"It can be very dangerous to see things from someone else's perspective, without the proper training." - DNA

Quote:

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Originally Posted by penagate

I have always wondered this: when I see something that I proclaim to be 'red', or 'green', and someone else agrees, are we seeing the same thing?

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Yes. That question relies on our inability to describe a color using words. You could apply the same to farts.

Colour blind people are less susseptible to bruising than non colour blind people - a little known fact.

OH yeah? Well I'm left handed so I'm better.

Quote:

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are we seeing the same thing?

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Yes. But I suspect you really mean "Do we percieve it in the same way?" I'd say the answer to that is no because perception is entirely subjective.

Quote:

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Originally Posted by penagate

I have always wondered this: when I see something that I proclaim to be 'red', or 'green', and someone else agrees, are we seeing the same thing?

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I've always wondered that as well. Think we will need some sort of out-of-body experience, similar to spiritual experience, for that to work...

Kill me now!

Well, even that wouldn't work if it were possible, because we'd still have to perceive the images somehow in order to be able to compare, and so we'd have to apply our own perceptions to them.

In other words, it's an unanswerable question.

So that's a no for the killing then?

Use identical lens on two computers to analyze the spectrum. Question answered.

So that's a no for the killing then?

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Originally Posted by mendhak

Use identical lens on two computers to analyze the spectrum. Question answered.

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But you still have to perceive the lens so that wouldn't work.

Nobody's asking a human to perceive what the lens see. Just ask the computer to. The computer gives the results to you in a more legible format that everyone can agree on.

And like I said, this is a question that relies on the limitation of language.

Ah, but a computer is merely a tool of logic, logic of course is a merely a tool of perception. That being said i agree with your statment partly and would say not that its a limitation of language, but of perception itself.

Some color deficient individuals have a hue and brightness problem - some have just a hue problem.

I've got deuteranomaly - problem with my greens - which must be why my favorite color is blue. At least my problem is just a hue issue - not a brightness issue.

So when I see RED it's the same RED as other folks - color, depth and intensity.

GREEN on the other hand - probably not.

http://colorvisiontesting.com/color2.htm

Given that we evolved from the same ancestors, although some of us are further removed from said predecessors than certain visualAds, which is the more likely scenario; that each of us interprets the different wavelengths of light in a unique and wholly interchangeable way or that, in fact, we actually all see things in pretty much the same way?



Thoughts in a PM to NotLKH please...

That of course is not to say it is the correct way.

i never thought a philosophy question would end up in a vb forum.
heck, what am i saying, they're almost one in the same. :)

Quote:

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Originally Posted by penagate

I have always wondered this: when I see something that I proclaim to be 'red', or 'green', and someone else agrees, are we seeing the same thing?

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personally, i think it's a matter of naming convention. as kids we are taught what to call the color green. when we grow up, everyone uses the same name for that color. who knows if we actually 'see' the same color. we all just call that color by the same name.

Quote:

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Originally Posted by NotLKH

How does the lack of detecting patterns in floating multicolored dots determine that you are colorblind? I'll bet you that if any of those dots were side by side of a different colored dot, many of these "Colorblind" individuals would tell you that they were different colors.

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some color blind people have difficulty recognizing the differences between colors. when a non-color blind person sees green and red, they can distinguish the difference. when some color blind people see red, it may look much closer to green. hence, they are unable to distinguish the patterns in red-green dotted pictures.

http://en.wikipedia.org/wiki/Philosophy_of_perception

Who wants to donate their eye so that we can hook it up to a computer and see what it displays?

Maybe Steve Jobs should be sacrificed with all his iAnything branding

Apple launches a product-unveiling product

Read that title again if you missed it the first time.