I am red-green colorblind, but I find that my brain adapted to recognize visual patterns and details more readily than people that are not colorblind.
Is this a common phenomenon, do others have experience with this ?

Most mammals are red-green color blind, and most other vertebrates see in UV-Blue-Green-Red (tetrachromatic), so in a way we are all color blind.

I are not detectably colorblind by any test I've taken, but red-green (protanopia and dueteranopia) is the form that trips up my flying students most often on their physical exams (if they're seeking a pilot's license requiring one). It's resolved for Private Pilot applicants when they show they can discriminate red from green signals from a local control tower's "light gun" signaling device (a legacy backup communications device that predates radio). It's easy for most motivated (but entirely red-green neutral) individuals to learn the perceived intensity difference in that situation beforehand, and pass the SODA (Statement of Demonstrated Ability) Test. I've noticed that people who make personal compensations with little fuss generally make better pilots overall. One of my students, who consistently displayed excellent visual skills as a pilot (seeing traffic, interpreting symbology) passed his FAA-required SODA test even though he is completely achromatopsic (sees in greyscale).

I've seen a lot of evidence that differing hues of perception can inspire compensations that become strengths.

I are not detectably colorblind by any test I've taken, but red-green (protanopia and dueteranopia) is the form that trips up my flying students most often on their physical exams (if they're seeking a pilot's license requiring one). It's resolved for Private Pilot applicants when they show they can discriminate red from green signals from a local control tower's "light gun" signaling device (a legacy backup communications device that predates radio). It's easy for most motivated (but entirely red-green neutral) individuals to learn the perceived intensity difference in that situation beforehand, and pass the SODA (Statement of Demonstrated Ability) Test. I've noticed that people who make personal compensations with little fuss generally make better pilots overall. One of my students, who consistently displayed excellent visual skills as a pilot (seeing traffic, interpreting symbology) passed his FAA-required SODA test even though he is completely achromatopsic (sees in greyscale).

I've seen a lot of evidence that differing hues of perception can inspire compensations that become strengths.

Good for civilian pilots, but can they get into the air force? I'm not saying the military should forbid color blind pilots, I just know they do for reasons unknown to me.

I are not detectably colorblind by any test I've taken, but red-green (protanopia and dueteranopia) is the form that trips up my flying students most often on their physical exams (if they're seeking a pilot's license requiring one). It's resolved for Private Pilot applicants when they show they can discriminate red from green signals from a local control tower's "light gun" signaling device (a legacy backup communications device that predates radio). It's easy for most motivated (but entirely red-green neutral) individuals to learn the perceived intensity difference in that situation beforehand, and pass the SODA (Statement of Demonstrated Ability) Test. I've noticed that people who make personal compensations with little fuss generally make better pilots overall. One of my students, who consistently displayed excellent visual skills as a pilot (seeing traffic, interpreting symbology) passed his FAA-required SODA test even though he is completely achromatopsic (sees in greyscale).

I've seen a lot of evidence that differing hues of perception can inspire compensations that become strengths.

Oh yes, I forgot that. I go on brightness more than others as well.
I once read that red-green colorblind people can distinguish more shades of beige than others and that they because of it can actually point out people in camouflage suits better than others. :)

The military is more strict, but applicants who are already aware of a deficiency can "study" beforehand for their eye exams and have a considerably better chance of passing it- Or at least learn of a disqualifying condition sooner. I advise students interested in the miltary aviation to test their vision independently- and if they are borderline, to consider "training" their vision before being officially tested. The numbered plates on paper are the first screen, and the definitive military test is the FALANT lamp.

It's much better to know where you stand before actual military screening. I suffered a bitter dissappointment in my youth over near-sightedness, that I wasn't aware of until age 17. The military screens people much more stringently initially, than they do after being selected for flight training. I think it's a shame when people unaware of a borderline, manageable color-perception deficiency get rejected because they haven't trained themselves to compensate for the particulars of the tests given. There is a lot of debate about whether the tests are a reliable measure of how pilots perceive indications and signage from the cockpit.

You can follow some discussion of this topic among aviators here (http://www.pprune.org/forums/showthread.php?t=129882&page=16).

Enmos: "I once read that red-green colorblind people can distinguish more shades of beige than others"

That's interesting: That could present a vision advantage over "normal" vision in certain situations, and I imagine it involves more neural processing than any color filter would emulate.

I almost applied to become a fighter-pilot back in the day, but they told me straight out that I didn't need to bother because of my colorblindness.. :(

That's tough. I know just how you felt, having been disqualified for slight, correctable myopia (correction is fine in the military after you've been selected).:(

Anyway, because there are so many nuances, I always advise aspiring aviators to get independently tested first.

That's tough. I know just how you felt, having been disqualified for slight, correctable myopia (correction is fine in the military after you've been selected).:(

Anyway, because there are so many nuances, I always advise aspiring aviators to get independently tested first.

I fail about half the tests. Of some of those I failed I can see the number (or whatever) when they tell me what it was.

Like I was saying, maybe all of us are color blind: http://www.cs.utk.edu/~evers/documents/tetraChromat.txt

And we can't see radiowaves or gamma waves, either.

When talking of colour blindness, obviously we take a relative point of a modal person since it would be absurb to consider sensitivities to all frequencies as normal!

How does a person figure out they are colorblind?

I mean, if they differentiate between red and green based on grayscale values, they in effect do see red and green as two different colors / hues of grey anyway.

If a colorblind person looks at a beech tree, does it seem to them to be all in hues of one color?

How does a person figure out they are colorblind?

I mean, if they differentiate between red and green based on grayscale values, they in effect do see red and green as two different colors / hues of grey anyway.

If a colorblind person looks at a beech tree, does it seem to them to be all in hues of one color?

I love these things, they are so pretty:
http://en.wikipedia.org/wiki/Ishihara_color_test

And we can't see radiowaves or gamma waves, either.

When talking of colour blindness, obviously we take a relative point of a modal person since it would be absorb to consider sensitivities to all frequencies as normal!

It would be nice to see in the same 4 colors that most other organism see in.

I love these things, they are so pretty:
http://en.wikipedia.org/wiki/Ishihara_color_test

Thank you for that link! I remember taking those tests in school.

But what is in image no. 19? I can't tell. It could be an 8 or a two, or neither.
In the no. 11 I hardly recognize the number 6.
In the no. 23, I barely see the 2 of the 42.

Am I colorblind in some way?

I have a hard time telling dark blue from black, but otherwise I'm ok.

Thank you for that link! I remember taking those tests in school.

But what is in image no. 19? I can't tell. It could be an 8 or a two, or neither.
In the no. 11 I hardly recognize the number 6.
In the no. 23, I barely see the 2 of the 42.

Am I colorblind in some way?

Take in mind that you are seeing these in your monitor not as they are supposed to be seen printed out, so it might have something to do with your monitor settings.

Take in mind that you are seeing these in your monitor not as they are supposed to be seen printed out, so it might have something to do with your monitor settings.

This could be a problem, yes.

But images on the web otherwise seem normal.

Well, if you are worried, go to an optometrist and do the test. ;)
I too have trouble seeing 2 in No.19, but on a closer look there is no chain that connects top left with bottom right, so it can't be a 8 and, so it must be a 2.

How does a person figure out they are colorblind?

I mean, if they differentiate between red and green based on grayscale values, they in effect do see red and green as two different colors / hues of grey anyway.

If a colorblind person looks at a beech tree, does it seem to them to be all in hues of one color?

Not really, they usually see it as a different colour. I remember reading about a guy who saw apple trees with brown leaves and black apples.

Thank you for that link! I remember taking those tests in school.

But what is in image no. 19? I can't tell. It could be an 8 or a two, or neither.
In the no. 11 I hardly recognize the number 6.
In the no. 23, I barely see the 2 of the 42.

Am I colorblind in some way?

Those are just examples, I barely see them too, you can take an online test: http://colorvisiontesting.com/ishihara.htm, I can complete it in 24 seconds all correct, you don't feel its that easy then see an optometrists or try a different monitor color setting.

Hey guess what color this is:
http://www.pibweb.com/ross/rgb_IR.jpg

That's tough. I know just how you felt, having been disqualified for slight, correctable myopia.A friend of mine back in the 1960s was disqualified because he had had really bad acne as a teenager so his skin was not smooth enough to make a good seal with pressurized goggles. He spent a fortune and endured a lot of pain in cosmetic surgery; his face looked like it was sunburned for weeks. But they couldn't fix it. I don't know if that's something they can do better today.I have a hard time telling dark blue from black, but otherwise I'm ok.There is no such color as "navy blue." It's just black. It's something women do to trick us. They have all these words for imaginary colors like ecru and puce.Hey guess what color this is:Is that supposed to show us what the world looks like to a colorblind person? There is no red OR green in it. If red and green are indistinguishable to them I'd assume that they both look like a shade of brown. I'd assume those leaves are either green or an autumn color--brown, yellow, red, orange, something like that, not blue or purple. But since AFAIK colorblind people can see brown and yellow (orange also?) then they must be either green or red, unless this is a scene from another planet where chlorophyll does not exist. :)

Is that supposed to show us what the world looks like to a colorblind person? There is no red OR green in it. If red and green are indistinguishable to them I'd assume that they both look like a shade of brown. I'd assume those leaves are either green or an autumn color--brown, yellow, red, orange, something like that, not blue or purple. But since AFAIK colorblind people can see brown and yellow (orange also?) then they must be either green or red, unless this is a scene from another planet where chlorophyll does not exist. :)

Actually that was a IR shifted images, here is another
http://www.sciencecenter.net/hutech/irphoto/image24.jpg
One on the left is Normal RGB, on the right is UV-Violet-IR

but a "what the world looks to color blind" image can be made by simply removing one of the RGB values from any image. But what colors a red-green color blind see is probably yellow and blue, example:
http://www.growthhouse.org/graphics/netcol_colorblind_pal.jpg

How does a person figure out they are colorblind?

I mean, if they differentiate between red and green based on grayscale values, they in effect do see red and green as two different colors / hues of grey anyway.

If a colorblind person looks at a beech tree, does it seem to them to be all in hues of one color?

As a kid my drawings showed purple skies, brown leaves and gras, and green bark.

When you are red-green colorblind you don't see red and green as gray, it's just hard to differentiate. Often when my mistake is pointed out I do see the real color.
Also, it is difficult for me to name any color of very small things or far away things.

I confuse blues and purples, yellows and greens, greens and reds, reds and browns and sometimes browns and greens. Though I can accurately name the 'standard' hues, like fire engine red or grass green. No probs there.

Thank you for that link! I remember taking those tests in school.

But what is in image no. 19? I can't tell. It could be an 8 or a two, or neither.
In the no. 11 I hardly recognize the number 6.
In the no. 23, I barely see the 2 of the 42.

Am I colorblind in some way?

http://www.toledo-bend.com/colorblind/Ishihara.html
I can't see any but the "12" and very vaguely the "8", the "56" this person claims seeing is invisible to me.

I have a hard time telling dark blue from black, but otherwise I'm ok.

Most non-colorblind people do, I noticed.. :D

They call something black when I clearly see that it's blue.

Those are just examples, I barely see them too, you can take an online test: http://colorvisiontesting.com/ishihara.htm, I can complete it in 24 seconds all correct, you don't feel its that easy then see an optometrists or try a different monitor color setting.

Hey guess what color this is:
http://www.pibweb.com/ross/rgb_IR.jpg

I can't make out any of those, except the first of course.

Red ;)

Have your tried something like this:
http://www.colorhelper.com/tutorial.php

Have your tried something like this:
http://www.colorhelper.com/tutorial.php

No I haven't. I don't need those, I get by fine :)

just to go toward the other extreme, here is an animal that can see more colors than other animals, including us:

http://sciencenow.sciencemag.org/cgi/content/full/2008/320/1

just to go toward the other extreme, here is an animal that can see more colors than other animals, including us:

http://sciencenow.sciencemag.org/cgi/content/full/2008/320/1

Very interesting, thanks ! :)

I once read that red-green colorblind people can distinguish more shades of beige than others and that they because of it can actually point out people in camouflage suits better than others. :)
It's not that they see more shades, it's that they see different shades. Camouflage was designed to fool people with normal vision, so it doesn't work as well on the color blind.

In fact, it's postulated that color blindness persists at such a high level in human populations because having one color blind person in a hunting group would help the group see things they otherwise wouldn't. The same thing applied in WW2 when they found that having one color blind person in a group improved their ability to analyze photos.

It's not that their vision is somehow superior, it's that their different aray of photoreceptors perceives things differently. Hell, that's the way we test for colorblindness. The colorblind person can't see the plates people with normal color vision can see, but there are other plates the color blind can see that people with normal vision can not. Same deal with the camouflage.

never knew that mad, i thought that they just saw red and green as EXACTLY the same colour

never knew that mad, i thought that they just saw red and green as EXACTLY the same colourNot many of them. The vast majority of the "color blind" can see every color, they just can't see a certain color as well as others. That is to say, they are anomalous trichromats. There are some dichromats who only see two colors. There are even a few true monochromats who see in black and white, but most of them are also legally blind and suffer from nystagmus.

did you know red\green is MUCH more common than blue colour blindness?

also red\green is stored on the x cromisone and there for there is a high chance a guy will have it if his mother is a carrier but blue is stored somewhere else and much less common. For a girl to be red green color blind requires her father to be as well as her mother to be at least a carrier (of course if mum has red green colour blindness all her male will be as well)

just to go toward the other extreme, here is an animal that can see more colors than other animals, including us:

http://sciencenow.sciencemag.org/cgi/content/full/2008/320/1

What extraordinary looks!

It's not that they see more shades, it's that they see different shades. Camouflage was designed to fool people with normal vision, so it doesn't work as well on the color blind.

In fact, it's postulated that color blindness persists at such a high level in human populations because having one color blind person in a hunting group would help the group see things they otherwise wouldn't. The same thing applied in WW2 when they found that having one color blind person in a group improved their ability to analyze photos.

It's not that their vision is somehow superior, it's that their different aray of photoreceptors perceives things differently. Hell, that's the way we test for colorblindness. The colorblind person can't see the plates people with normal color vision can see, but there are other plates the color blind can see that people with normal vision can not. Same deal with the camouflage.

Thanks, I didn't know that stuff about WWII :)

I almost applied to become a fighter-pilot back in the day, (

Interesting so did Nietzche.

I voted, I am not colourblind.

Interesting so did Nietzche.

I voted, I am not colourblind.

I'm starting to feel uncomfortable.. ;)

I'm starting to feel uncomfortable.. ;)

Yeah you 2 are very much alike lol....:eek:

Yeah you 2 are very much alike lol....:eek:

He isn't colorblind as well, is he ? :fright:

He isn't colorblind as well, is he ? :fright:

I think he is just blind lol

I think he is just blind lol

Ouch.. lol
I'll ask no further.. :p

i R NOT COLOUR BLIND

i R NOT COLOUR BLIND

Word blind perhaps ? ;)

wawt? mae be eye em spelblind?

wawt? mae be eye em spelblind?

I don't know but you might want to get tested lol

Well at least I has the best grammars, ever

Ye has the best grammer!

http://img526.imageshack.us/img526/1347/fuckthecolourblindnu1.png

Can you read this ^ ?
Not meant to offend, it's just the only example I could find.

http://img526.imageshack.us/img526/1347/fuckthecolourblindnu1.png

Can you read this ^ ?
Not meant to offend, it's just the only example I could find.

I think I seen better examples :D

http://img526.imageshack.us/img526/1347/fuckthecolourblindnu1.png

Can you read this ^ ?
Not meant to offend, it's just the only example I could find.

I can't.. am I missing something ?

I can't.. am I missing something ?

You can't read that? lol

You can't read that? lol

No. What does it say ?

Btw.. I got a general idea since the image is named 'fuck the colorblind'.. lol

thats what it says too.

thats what it says too.

No way, in words ? Is there enough room ?

No way, in words ? Is there enough room ?

this might help: http://www.colorhelper.com/index.php

this might help: http://www.colorhelper.com/index.php

LOL leave me alone ! :p

LOL leave me alone ! :p

Why not try it? Would you like green eggs and ham here or there?

Why not try it? Would you like green eggs and ham here or there?

That's not how it works ;)

That's not how it works ;)

Hey I can't rhyme, I admit it.

Here is another color blind test (its a video) just watch it to the end and see you you can answer the question. Don't worry I think 50% of the population fails this one.
http://www.youtube.com/watch?v=T08VlBo-pns

Hey I can't rhyme, I admit it.

LOL
It's just that I don't notice color that much. Colorblind people know that ham isn't green.
Besides they don't know any better; they have always seen it that way even if it does seem green to them. So it's no big issue, to me at least.

LOL
It's just that I don't notice color that much. Colorblind people know that ham isn't green.
Besides they don't know any better; they have always seen it that way even if it does seem green to them. So it's no big issue, to me at least.

I got to ask:
http://specieslist.com/images/2005-05/siberian_tiger-10.jpg
Does the tigers fur look like the same color as the grass?

I got to ask:
http://specieslist.com/images/2005-05/siberian_tiger-10.jpg
Does the tigers fur look like the same color as the grass?

No. But I believe my brain sort of fills in the right color of objects of known color. It sounds weird but it seems like it.

No. But I believe my brain sort of fills in the right color of objects of known color. It sounds weird but it seems like it.

You can't see the difference? interesting, when I was younger I always wonder how tigers could catch anything with it orange fur standing out, then I learn most mammals only see red/green colorblind and I figure the tigers orange strips appear the same color as the grass to its victims.

Did you see the color blind test video I found:
Here is another color blind test (its a video) just watch it to the end and see you you can answer the question. Don't worry I think 50% of the population fails this one.
http://www.youtube.com/watch?v=T08VlBo-pns

You can't see the difference? interesting, when I was younger I always wonder how tigers could catch anything with it orange fur standing out, then I learn most mammals only see red/green colorblind and I figure the tigers orange strips appear the same color as the grass to its victims.

Did you see the color blind test video I found:

No, you misunderstood. I do see the difference but I speculate that it is because I know that a tiger is orange and grass is green. The objects are known so they are distinguished.
If the tiger was in partial hiding I might not see him because of my colorblindness. But as I pointed out in the OP I am more adept at pattern recognizing then non-colorblind people.. so there is a big change I would see it before you do ;)

Did you see the color blind test video I found:

LOL that test isn't fair :p

I assumed it was yellow.
I watched it again and I still wasn't a 100% sure. But I would say yellow..

No, you misunderstood. I do see the difference but I speculate that it is because I know that a tiger is orange and grass is green. The objects are known so they are distinguished.
If the tiger was in partial hiding I might not see him because of my colorblindness. But as I pointed out in the OP I am more adept at pattern recognizing then non-colorblind people.. so there is a big change I would see it before you do ;)

I don't think you understand how unfashionably obvious his orange is. I'm sure having to live in trichromatic society has force your brain to compensate, but as a cave man or even as one of our primate ancestors having the extra color channel came in very handy, probably not against tigers but for some reason.

I don't think you understand how unfashionably obvious his orange is. I'm sure having to live in trichromatic society has force your brain to compensate, but as a cave man or even as one of our primate ancestors having the extra color channel came in very handy, probably not against tigers but for some reason.

If I cover all but a piece of orange of the tiger and look at it, I admit that I could think it's green.
Actually, I'd say it's more a orangy-brown than really orange.

So you say that it is very bright orange ?? I can't believe that..
This is bright orange (no trouble identifying that as orange by the way):
http://shop.creanijn.be/shop/images/CM4201%20Dutch%20Orange.jpg

LOL that test isn't fair :p

I assumed it was yellow.
I watched it again and I still wasn't a 100% sure. But I would say yellow..

Actually there was no tennis ball, at least I could not see one, all I could see was a reason why sport bras are necessary: she going to regret doing that when in 20 years those milk jugs are touching the ground.

If I cover all but a piece of orange of the tiger and look at it, I admit that I could think it's green.
Actually, I'd say it's more a orangy-brown than really orange.

So you say that it is very bright orange ?? I can't believe that..


That is about the color of it, I think your lights and darks are abnormal as well. I not saying it a bad thing to be color blind, if you were in the army you could sport camouflage easy because the blends of red and green are designed to trick trichromatic vision, not dichromatic vision. It still bothered me how bird decoys work for hunters since birds are tetrachromates.

Lets analyses this, are missing red or green, or is one abnormal: of these flags which ones looks the most alike:
#1
http://content.answers.com/main/content/wp/en-commons/thumb/9/9d/180px-Gay_flag.svg.png

#2
http://upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Rainbow_Protanopia.svg/180px-Rainbow_Protanopia.svg.png

#3
http://upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Rainbow_Deuteranopia.svg/180px-Rainbow_Deuteranopia.svg.png

Actually there was no tennis ball, at least I could not see one, all I could see was a reason why sport bras are necessary: she going to regret doing that when in 20 years those milk jugs are touching the ground.

Believe me, there was a tennisball :D

That is about the color of it, I think your lights and darks are abnormal as well. I not saying it a bad thing to be color blind, if you were in the army you could sport camouflage easy because the blends of red and green are designed to trick trichromatic vision, not dichromatic vision. It still bothered me how bird decoys work for hunters since birds are tetrachromates.

Lets analyses this, are missing red or green, or is one abnormal: of these flags which ones looks the most alike:
#1
http://content.answers.com/main/content/wp/en-commons/thumb/9/9d/180px-Gay_flag.svg.png

#2
http://upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Rainbow_Protanopia.svg/180px-Rainbow_Protanopia.svg.png

#3
http://upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Rainbow_Deuteranopia.svg/180px-Rainbow_Deuteranopia.svg.png

#1 Red, Orange, Yellow, Green (bit browny green to me, like olive), Blue, Purple.

#2 Green (bit browny green to me, like olive), Orange or Green, Yellow, Orange Or Light Green, Light blue, Dark Blue.

#3 Brown?, Orange, Yellow, Green?, Blue, Blue

2 and 3 are the most alike

Wow you see orange in # 2, 3 Man you are colourblind lol

I can't pick two that are most alike.. they differ too much.

#1 is the correct spectrum.

I can't pick two that are most alike.. they differ too much.

Either you jerking us around or your not color blind but color abnormal, which would really be impossible because the monitors and the pictures are in RGB values.

Either you jerking us around or your not color blind but color abnormal, which would really be impossible because the monitors and the pictures are in RGB values.

I am not jerking around.
What did I do that makes you say that ?

Btw. I always say I am not colorblind but colorstupid ;)

http://upload.wikimedia.org/wikipedia/commons/thumb/6/65/Cone-response.svg/410px-Cone-response.svg.png

Seriously though, there are two kinds of red-green blind, one were Green receptor is missing (Missing the M) in which case #1 and #3 would look most alike, and were the Red receptor is missing in which #1 and #2 look most alike. Now some people are color abnormal in which the red, green or blue receptor's absorption profiles is shifted right or left, they would maybe say the flags look like what Enmos say it looks like.

I wonder would a person with the green absorption spectra shifted left have beter the normal color vision?

http://upload.wikimedia.org/wikipedia/commons/thumb/6/65/Cone-response.svg/410px-Cone-response.svg.png

Seriously though, there are two kinds of red-green blind, one were Green receptor is missing (Missing the M) in which case #1 and #3 would look most alike, and were the Red receptor is missing in which #1 and #2 look most alike. Now some people are color abnormal in which the red, green or blue receptor's absorption profiles is shifted right or left, they would maybe say the flags look like what Enmos say it looks like.

I wonder would a person with the green absorption spectra shifted left have beter the normal color vision?

Is that a receptor deficiency or deficient color interpretation by the brain ?

By the way, give me some more tests :)

Better than normal vision ? I hope so..
How come you are entertaining this question ?

As you seem to know a little something about this I'll tell you some more.

I find it more difficult than a 'normal' person to name a color when it's weak. Or if the object is very small or far away.

You can't see the difference? interesting, when I was younger I always wonder how tigers could catch anything with it orange fur standing out, then I learn most mammals only see red/green colorblind and I figure the tigers orange strips appear the same color as the grass to its victims.


I have a book of animals and there is a photo of a tiger in tall savannah grass, at sunset. The tiger can barely be seen, it melts so much with the yellowish/orange tall grass and the shadows.

Something like this

http://pfrazier.com/graphics/tiger.jpg

but the grass should be taller.

I have a book of animals and there is a photo of a tiger in tall savannah grass, at sunset. The tiger can barely be seen, it melts so much with the yellowish/orange tall grass and the shadows.

Something like this

http://pfrazier.com/graphics/tiger.jpg

but the grass should be taller.

Those colors are very similar to me.

Is that a receptor deficiency or deficient color interpretation by the brain ?

By the way, give me some more tests :)

Well their are brain damages which can cause abnormal or loss color vision.

Ok here is one: which row of bands looks (in the low part of the image) match each other?
http://michelf.com/img/icon/sim-daltonism-512.jpg

Which color kids looks like another?
http://www.accessv.com/~shawgrp/RainbowLandPicture2.jpg

Well their are brain damages which can cause abnormal or loss color vision.

Ok here is one: which row of bands looks (in the low part of the image) match each other?
http://michelf.com/img/icon/sim-daltonism-512.jpg
None at all.
The middle one seems to be the normal spectrum, while the upper misses red and the lower misses green.
I know how the spectrum is supposed to look..

Which color kids looks like another?
http://www.accessv.com/~shawgrp/RainbowLandPicture2.jpg
The red ones ?

I have a book of animals and there is a photo of a tiger in tall savannah grass, at sunset. The tiger can barely be seen, it melts so much with the yellowish/orange tall grass and the shadows.

Something like this

http://pfrazier.com/graphics/tiger.jpg

but the grass should be taller.

Well I guess it does blend in a little better in golden dried grass, but lets see it blend in the jungle!

Enmos,

Ok one last time:
http://www.youtube.com/watch?v=kPdhtU5S1AY&feature=related
and
http://www.youtube.com/watch?v=uJ7RfZd62J4&feature=related

Well I guess it does blend in a little better in golden dried grass, but lets see it blend in the jungle!

Enmos,

Ok one last time:
http://www.youtube.com/watch?v=kPdhtU5S1AY&feature=related
and
http://www.youtube.com/watch?v=uJ7RfZd62J4&feature=related

The first video showed a 'P'.
In the second I could only see the A and B.

Edit: Hmm seeing the comments on that last one, I suspect that was a fake test..

The first video showed a 'P'.
In the second I could only see the A and B.

Well after extensive testing I have to agree, you are just color stupid. I recommend you never buy ties or choose your own cloths as teenage girls are likely to vomit upon the sight of you.

The second is a fake, the first shows a B.

Well after extensive testing I have to agree, you are just color stupid. I recommend you never buy ties or choose your own cloths as teenage girls are likely to vomit upon the sight of you.

LOL How did you reach that conclusion ?

Btw. I found this test:
http://www.youtube.com/watch?v=fYzmo9BgXtc&feature=related

#1. I can see the 25 (obviously) .
#2. I can see all three shapes (obviously).
#3. I cannot see the boat.
#4. I only see the circle.
#5. I see a very vague 20, with some imagination I can make a 29 of it.
#6. I only see the rectangle.
#7. I only see spots.
#8. I know this one, the 56 is incomplete for me. I see some dark spots that seem to make a pattern. I would not come to the conclusion that it's a 56 on my own.
#9. I only see spots.
#10. I see a very vague 5 there.
#11. I see an incomplete form there that looks like it could be a 5, made up of bluish spots. Absolutely no 2.

The second is a fake, the first shows a B.

Its a "E"

Its a "E"

I think you are colorblind.. :p

Enmos,

For go getting a color blind test and get an anomaloscope test instead.

Enmos,

For go getting a color blind test and get an anomaloscope test instead.

Uh ok, I'll think about it. I'm not going to pay for it.

Uh ok, I'll think about it. I'm not going to pay for it.

If you ever need glasses just ask the optometrist if s/he has a anomaloscope

Ok, I did an RGB Anomaloscope Color Blindness Test here: http://www.colblindor.com/rgb-anomaloscope-color-blindness-test/
I got these results:
You matched several values which means you have a moderate to strong red-green color blindness.

Ok, I did an RGB Anomaloscope Color Blindness Test here: http://www.colblindor.com/rgb-anomaloscope-color-blindness-test/
I got these results:
You matched several values which means you have a moderate to strong red-green color blindness.

Aaaaah I think that test response is false, it would be better if you posted a screen shot of the image it gives you.

Like such:
http://i269.photobucket.com/albums/jj70/WellCookedFetus/Screenshot-RGBAnomaloscopeColorBlin.png

Aaaaah I think that test response is false, it would be better if you posted a screen shot of the image it gives you.

Like such:
http://i269.photobucket.com/albums/jj70/WellCookedFetus/Screenshot-RGBAnomaloscopeColorBlin.png

Ok, but it will take while. This test is supposed to be the best though.

http://img2.freeimagehosting.net/uploads/4627e96e0d.jpg

I can't figure out what do my one dot results mean exactly? And why is ElectricFetus results look like a parabola?

http://enmos.eu/tempdir/anomaloscope.jpg

Hmm computer monitors may have a profound effect on this test.

interesting Enmos and ElectricFetus are exhibiting a parabola character for green-red test, meanwhile I exhibit a dot character...

http://img507.imageshack.us/img507/4362/ign1sm8.png (http://imageshack.us)

Ok I took the test several times now and apart from tiny variations the results keep coming out the same. I have tried the test on two different monitors with little to no difference in results.

http://img507.imageshack.us/img507/4362/ign1sm8.png (http://imageshack.us)

Impressive Avatar !
Heh I guess it comes natural to you ;)

Not really, that one was me try to make a false result, here is my normal result:
http://i269.photobucket.com/albums/jj70/WellCookedFetus/CBT1.jpg

Try for your self.

I guess it's definitive then..
Btw. some of the colors I had to say 'Cannot match' were really difficult for me to distinguish.

I sense faked images...

I sense faked images...

Draqon, maybe you are colorblind.
Take this test: http://www.youtube.com/watch?v=fYzmo9BgXtc&feature=related

My results are in post 90.

"Thank you for taking the test.
You matched several values which means you have a moderate to strong red-green color blindness."

Yeah right.

"Thank you for taking the test.
You matched several values which means you have a moderate to strong red-green color blindness."

Yeah right.

How did your graph look ?

But there really is a difference in shades! Look carefully.

I clicked one because I thought the colours were so close together that they might be one, but now I realize that mistake.

Ok I found a color blind test that works:
http://www.dragonsplace.co.uk/flash/colourblind.html

But there really is a difference in shades! Look carefully.

I clicked one because I thought the colours were so close together that they might be one, but now I realize that mistake.

it is easy to cheat, just say known match.

it is easy to cheat, just say known match.

But that's moronic. What use to cheat yourself?

Ok I found a color blind test that works:
http://www.dragonsplace.co.uk/flash/colourblind.html

I got all wrong.. the first two I couldn't see at all. In the last one I clearly see a 2, but that was wrong as well apparently..

But that's moronic. What use to cheat yourself?

Hey some of the yellows look almost the same, and then it says your color blind, it a matter of metal threshhold at which point you just say, close enough, besides computer monitors can't do this effectively.

Ok I found a color blind test that works:
http://www.dragonsplace.co.uk/flash/colourblind.html

I got everything correct and it said I was colorblind...stupid test

I got all wrong.. the first two I couldn't see at all. In the last one I clearly see a 2, but that was wrong as well apparently..

the last one is a "5" isn't it?

I got all wrong.. the first two I couldn't see at all. In the last one I clearly see a 2, but that was wrong as well apparently..

Clearly your color blind, try 74, 8 and 5.

How did your graph look ?

Much like EF's in post 107, the dots were close together.

12, 74, 8, 5 were my choices...and it said I was wrong...this test is wrong

I got everything correct and it said I was colorblind...stupid test

Yes, and then that awful picture! Eww.

Much like EF's in post 107, the dots were close together.

Then it maybe you monitor. The closer together they are the less likely it is that you're colorblind apparently.

Draqon, maybe you are colorblind.
Take this test: http://www.youtube.com/watch?v=fYzmo9BgXtc&feature=related

My results are in post 90.

I am not color blind, I saw everything clearly.

I am not color blind, I saw everything clearly.

Ok :)

I can see clearly now my brains are gone......la la la :D

Ok, ok, dam people! I thought it was obvious but that last one was a joke.

Hey I just discovered this but gnome has a color blind helper built in (or at least you download in Synaptic Package Manage)!

I can see clearly now my brains are gone......la la la :D

you cannot see if your brains have gone anywhere because:

1) You only have one brain. singular.
2) If you'r brains were indeed gone than you would not see anything

Ok, ok, dam people! I thought it was obvious but that last one was a joke. !

Nice joking, some people might have had a heart attack here knowing that their are color blind...their dreams of being pilots and flying in Earth stratosphere at Mach10 speed might have been shattered just because of this test...their wishes of future, of seeing different shades of color on their girlfriends lips were shattered as well...the only option forth would have been a suicide. And all because of a joke

Here is another (and I promise it is not a joke), task ever tries to get the hang of what it is asking you to do: it say a work like Red and ask you to select the correct answer for the color that word's text is in (in this case Blue), it not really a color blind test but one to challenge the brain.

RedBlueGreenYellowBlackPurpleRedBlueGreenYellowBla ckPurple

PinkRedTorquisePurpleBlackYellow

Here is another (and I promise it is not a joke), task ever tries to get the hang of what it is asking you to do: it say a work like Red and ask you to select the correct answer for the color that word's text is in (in this case Blue), it not really a color blind test but one to challenge the brain.

Silly me I forget the link: http://www.humorsphere.com/fun/8787/colortest.swf

http://www.evidencesofcreation.com/images_understading/Kaplan.jpg

See the tiger?

I am red-green colorblind, but I find that my brain adapted to recognize visual patterns and details more readily than people that are not colorblind.
Is this a common phenomenon, do others have experience with this ?

I think that was what my Dad had as well. He worked for the forest service so he wore a uniform, but I remember on weekends my Mom laid his clothes out. After the divorce he just moved to a monochromatic wardrobe. It was less embarrassing.

He said where logging and fire roads should go. He could just go out and look and know the best place. I just figured it was years and years of doing it, but maybe he could see details other missed like you do as well. :shrug:

Silly me I forget the link: http://www.humorsphere.com/fun/8787/colortest.swf

I keep scoring 88%.. I must do something wrong despite the fact that they say I'm "The master". lol

http://www.evidencesofcreation.com/images_understading/Kaplan.jpg

See the tiger?

Yup, clear as day ;)

lol btw.. what the hell kind of sites are you hanging out on :p

I think that was what my Dad had as well. He worked for the forest service so he wore a uniform, but I remember on weekends my Mom laid his clothes out. After the divorce he just moved to a monochromatic wardrobe. It was less embarrassing.

He said where logging and fire roads should go. He could just go out and look and know the best place. I just figured it was years and years of doing it, but maybe he could see details other missed like you do as well. :shrug:

Could very well be, although I have no idea what makes a good logging or fire road..

About the clothing, I just go for 'save' colors.. I can see most ;)

lol btw.. what the hell kind of sites are you hanging out on :p

What do you mean?
I found the picture via Google.

I keep scoring 88%.. I must do something wrong despite the fact that they say I'm "The master". lol
I got 100%, but not with the first time.
It becomes suprisingly easy when you just click the other word than what is displayed,
so I was cheating and was using negative word recognition instead of colour recognition.

I got 100%, but not with the first time.
It becomes suprisingly easy when you just click the other word than what is displayed,
so I was cheating and was using negative word recognition instead of colour recognition.

I admit I cheated as well, I just remembered the sequence after a couple of times.
The first time I scored 68%.

What do you mean?
I found the picture via Google.

lol I just noticed the image came from a creationist website ;)

I admit I cheated as well, I just remembered the sequence after a couple of times.
The first time I scored 68%.

Interesting. I didn't even think of sequencing it. Shows how human brain comes up with creative problem solving.

lol I just noticed the image came from a creationist website ;)

Well, they've got to come from somewhere ...

Well, they've got to come from somewhere ...

True :)

Interesting. I didn't even think of sequencing it. Shows how human brain comes up with creative problem solving.

Yep, yours is smarter though. Especially if the sequence was much longer.

why is it a guy thing and not a girl thing? Is there an evolutionary reason?

Ever get into a disagreement with someone about a colour?
They think it's something else and they argue and argue. Then you finally
say you are colour blind. Then they say nooooooo you are colourblind.
When you know damn well that you aren't.
lol

why is it a guy thing and not a girl thing? Is there an evolutionary reason?

Yes it's X-chromosomal. So if a non-colorblind woman who is a carrier (XnXc) has a child with a non-colorblind man (XnY) the outcomes are as follows:

Non-colorblind girl: XnXn
Non-colorblind carrier girl: XcXn
Non-colorblind boy: XnY
Colorblind boy: XcY
Only boys can be colorblind.

Type 1
So: XnXc x XnY -> XnXn, XcXn, XnY, XcY
Only boys can be colorblind.

Other configurations:

Type 2
XnXn x XcY -> XnXc, XnXc, XnY, XnY
0% colorblind, 100% of girls are carriers.

Type 3
XcXc x XnY -> XcXn, XcXn, XcY, XcY
100% of girls are carrier, 100% boys are colorblind.

Type 4
XnXc x XcY -> XnXc, XcXc, XnY, XcY
50% of boys are colorblind, 50% of girls are colorblind, 50% girls are carrier.

Type 5
XcXc x XcY -> 100% of girls are colorblind, 100% of boys are colorblind.

Type 6
XnXn x XnY -> 0% of girls are colorblind, 0% of boys are colorblind, 0% of girls is carrier


So if we have a thousand of each of these couples and each of these couples would get one child, we would have 6 thousand children.

Couple type 1:
250 XnXn, 250 XnXc, 250 XnY, 250 XcY

Couple type 2:
500 XnXc, 500 XnY

Couple type 3:
500 XnXc, 500 XcY

Couple type 4:
250 XcXc, 250 XnXc, 250 XnY, 250 XcY

Couple type 5:
500 XcXc, 500 XcY

Couple type 6:
500 XnXn, 500 XnY

So we would have out of 6000 children:

750 non-colorblind, non-carrier girls
1500 non-colorblind, carrier girls
750 colorblind girls

1500 non-colorblind boys
1500 colorblind boys

So even though there is a huge and very unrealistically high percentage of Xc-alleles in our hypothetical population, there are still twice as many colorblind boys being born as there are colorblind girls being born.

Ever get into a disagreement with someone about a colour?
They think it's something else and they argue and argue. Then you finally
say you are colour blind. Then they say nooooooo you are colourblind.
When you know damn well that you aren't.
lol

lol wha? I am colorblind.. :p

so colorblindness is like hemophilia?

so colorblindness is like hemophilia?

Uh yes.. :bawl: