Critique Wall.com

Here's another good example.

i think i see big difference in the pics but that dotted thing has a slight difference....but i can't make out the numbers sometimes when they are green. i can see the green swirl in the red circle. example if colorblind see 74 and normal see 21 i will see 71 or won't be able to decide.what is up with that?

In the Last picture, it shows how color blind people are not able to see if the traffic light is on red or green,they're only able too see if it's yellow, which is not good. Does that mean they're not allowed to drive? or Are there options for them? If so, What kind of options? Thank you for your time.

I dont see any difereces in the pictures!

i´m daltonic but dont no what kind of...

I'm a RG colorblind, living in a colorful world!! Being what i am has made me appreciate colors i can see! Las vegas is my favourite place!!! Thank you god!!!

I've been to such things as impressionist art exhibits, and I've really given up on living with any purpose in my life. The joys of everyday living have become voided by the apparent inequalities that this "God" has plagued us with. As much as the support you have given me would be invaluable, there is no way that any human made support can overcome the inquenchable wave of sadness that consumes my heart. In general, it is not a problem because we are blinded by the very nature of our being. This site has done nothing but prove to me how much we are separated from our "brothers." I now won't bother doing anything but possibly the most menial of work that doesn't involve colors or anything during the daytime.

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wow thats really helpful and interesting. You guys see the world in a different way and i think its a gift :)

im fully colorblind and this is completely off

check this out

http://mattwilcox.net/archive/entry/id/513/

i see exactly the same pics

Very good website, well done and thank you for your job - video gratuite

This is really, really cool. I'm supposedly "noraml" sighted. And although I have to dissagree on the evolutionary speels, I do agree on the rest. I know someone that is I assume red-green CB. They got purple and green "wrong". I thought that was interesting on the statement on how one man could see the differences right away in nationalities. Maybe we should all be color blind, it might get rid of some of the "race"ism. OH, and if people evolved, then WHY is it, that more WHITE people are colorblind than the rest of us, like the ones living in Africa with the lions and stuff? I haven't done all these tests, but I'm taking it from there.

On a lighter note, I did have a really hard time on some of those tests, I saw a 71, not a 21 or 74(I did see the four later on) and that one where the colors were like sponged on, I had a hard time seeing the 57 or something like that. It might be my LCD screen also. I just got up and my eyes were hurting from the light lol! Anyways, once again, thanks for all the great posts out there for us "normal" sighted ppple. Yes, you do see colors, and much more than the rest of us! >D:<

Why is it that the law requires all new constructions to be accessible to people in wheelchairs ? Crossing lights now have audio-signals for blind people. Deaf people can have sign-language interpreters to go to school. Society has changed or adapted itself for people with a great number of handicaps, and I applaud this movement. However, I don't understand why colorblindness is not included in this list ? If we know that colorblind people cannot differentiate green or red LED lights, why are they allowed on devices ? Why is color used as a categorization tool when many people cannot distinguish them ? I believe this to be a form of discrimination towards people with a certain handicap - colorblindness. I am not implying that this condition is equivalent to blindness or many other handicaps. But I am saying that a sufficient % of the population is affected for there to be thought put in to certain situations where color is of importance.

Thank you for that, the number of times I have been asked to "describe what I see" for the benefit of someone with normal colour perception. As most of you know, this is not possible, akin to describing blue to a blind person.
Now, at last, I can just direct them to this site and let them see for themselves.

I HAD A PAIR OF RED LENS CLIP ON SUN GLASSES TYPE, THAT I COULD PUT ON AND PASS THE COLOR BLIND TEST AT MY EMPLOYNENT WHERE IT WAS CRITICAL TO MY JOB.
I HAVE SENSE MOVED AND LOST THEM AND LOOKING FOR A MANUFACTURE THAT CAN MAKE ME ANOTHER PAIR. THE SHADE IS BRIGHT RED, AND WITH THEM,I COULD PASS THE COLOR TESTS THAT WAS REQUIRED.

DO YOU KNOW OF ANYONE THAT MAKES THESE RED CLIP ON GLASSES ANYMORE. i NEED ANOTHER PAIR MADE.

L. BOSSONG
256-216-6992

http://www.opticien-lentilles.com/daltonien_beta/new_test_daltonien.php

I suppose I fall in the group of people that are technically colorblind and while I can't see the number in the first image, I can see the differences in every other image clearly. While driving I can clearly tell the difference betwee the red and green lights based on more than their position. The government acknowledges that the plate tests can't always accurately judge the level of colorblindness. Apparently I'm barely R/G colorblind because I can easily pass a test that involves shining red, white, and green light at me, allowing me to serve my country. Additionally I've heard that R/G colorblindess has some benefits in low light environments or environments with alot of blue light. Anyone else heard anything like that?

Interesting article and interesting comments.

I am definitely color blind in some way, but I'm not exactly sure what type I have. I can distinguish all the colors when they are in their pure form, but similar shades tend to look one way or another for me. I guess you could call it color deficiency?

As for the pictures above, I can see the differences in all of them, although there are certain anomalies. Here are some notes:

1. I can see a difference in color in dots between the two Ishihara tests, but the dots with the "extra" color in the left drawing don't stand out enough from the other ones to form anything distinct. If I tilt my LCD monitor back, I can clearly see the "45". When I tilt it forward again, I can note the difference in color better, but, again, it's not a vivid enough distinction for the "45" to register.

2. With the berries on the branch, the berries in the foreground look vastly different to me, but I needed to read someone else's description in order to even realize there were berries in the background.

3. The two versions of the girl's dress are as different as night and day to me.

4. The Christmas tree is the most complex one for me: at first I didn't notice a difference, but then it seemed that the globe ornaments in the left picture were definitely more red than the ones on the right. The ones on the right definitely do not contrast as much with the tree, but it would be difficult for me to say what color they are. The color seems a vague, darkish reddish
greenish brown that doesn't register really as anything to me. I think in this situation, I would say it is whatever color anyone told me it was and have no problem if they suddenly changed their mind.

5. It is clear to me that the man's face on the right is reddish color and greenish on the right, but it took me a couple of seconds to realize this the first time. On subsequent viewings the distinction was automatic.

6. The photos of the flowers, berries and the ice cream cone seem significantly different enough to me to notice. With the flowers, though, I would be hard pressed to name what color they are, but I think that has to do more with my education/knowledge in color than with color blindness. Although the flowers on the right are another example of what is a vague color to me.

7. The map was just like the face, although it took me a little longer to notice the difference. And just like the face, once I noticed the difference, the distinction was automatic on later viewings.

8. The Chinese picture I can just barely notice a difference, particular with the flowers floating to the right of the man: the ones on the left are much more red than the ones on the left (like the globes on the tree). I can't see much of a difference between anything else, though. Of course I can "see" the lack of red in the right hand picture, but it just isn't a big deal; it doesn't change the picture very much for me. It's distinctly different only upon examination.

9. The two traffic light pictures are completely different to me.

The conclusion this break-down brings me to seems strange to me: red and green are vastly different colors to me, but not as different as they are to people with normal vision. How can qualities that seem like polar opposites to me admit of being more or less different?

What is also interesting is how my different vision effects me cognitively, particularly with blue and purple. I can see the difference between blue and purple, but since I don't see the red in purple as vividly as people with normal vision, purple and blue seem like two different versions of blue to me, although distinct, simply because the more bluish purples look blue to me unless I look at it closely and find the red in it. It drives my normal color vision girlfriend (who, by the way, is myopic and has dramatically worse night vision than I have) crazy when she corrects me as having called something purple something blue, and I say "Oh yeah, I guess it *is* purple, upon closer inspection." Her response is: "Well why didn't you call it purple in the first place, if you can see the difference?" My response is: "Purple is a kind of blue." Although my senses can distinguish colors, because the differences between them are more muddy, my categorization of them is different from other peoples', in addition to my sense-experience.

This makes me wonder: is it possible that, perhaps, this different perception of colors has to do with a cognitive bias? That maybe the way I identify and objectify colors actually influences the way I see them? What I mean is, could it be that the reason I see colors differently is because I think about them differently? I know the issue is not so black and white (or red and green, har har har), but maybe both factors influence "colorblindness." Could it be possible that I really do see things the same as other people, ocularly speaking, but I can't tell the difference between colors at similar shades because I have a mental bias for distinguishing "shade" before distinguishing color? Maybe it's that I perceive brightness and shadow more *intensely* than others (either by choice or biologically), and therefore see color as more accidental, less as a substantial, unchanging quality of objects, and so less intensely. Do you see what I mean? Above I noted a couple places where I could clearly see colors, but the color was "vague." This seems to have a lot to do with cognition, at least in addition to if not in exclusion of sense perception.

Maybe the reason why our perception of color seems more fixed than our perception of other things is because it's a basic quality of the world around us, and we're taught to make distinctions at a much younger age than we are with other things. Perhaps if color was not a part of our education, part of our culture so much, more people would be "color blind." Take race as an example. You learn to distinguish facial features of people in your immediate vicinity before learning to distinguish people that have vastly different characteristics. There is a common complaint that white people cannot distinguish between black or Asian people very well, and I think it's true. The differences are not emphasized in people's minds because they are not called upon to make distinctions. I am a white guy who has studied Asian cultures and languages my whole life, even lived in Asia. I can tell the difference between a Chinese person and a Japanese person on sight. I'm probably in a very small percentile of white Americans who can do that, but the difference seems obvious to me. Of course there are gradations (race is, ultimately, something completely variable and perhaps non-existent from a scientific standpoint). But most white Americans could not distinguish a very Chinese-looking person from a very Japanese-looking person in any way whatsoever.

I chose this somewhat controversial example among others because I find it a good example when trying to explain my experience of colors to other people. When they ask "What is it like being able to notice the difference between blue and purple but only after a close examination?" I can respond by saying "What is it like not being able to distinguish a Chinese person and a Japanese person?" Or Mandarin Chinese and Cantonese. Or Chinese writing with Japanese writing. Or Mozart's music and Haydn's music. After giving so many of these examples, it dawned on me: maybe my difficulty in distinguishing purple and blue is because my grasp of color as a whole is just not as fine as others', and rather than being like the difference between a disabled person and a healthy person, it's more like the difference between a newb and a connoisseur, someone with no experience or insight and someone who does. It's just that some bias in the way I perceive light prevents my mind from pressing forward to make the distinctions.

Of course you are going to say, recognizing facial features is just a matter of training, but there is biological evidence distinguishing colorblind people from those with normal color-vision. This is true, but I am wondering if in those cases where the biological difference isn't great, what might have been no difference at all grew to be one because of thought patterns. That is, what if there are people who are biologically colorblind that pass vision tests because, by chance, their upbringing emphasized color distinctions more than in others', and what if there are people with normal vision who think they are colorblind because they are simply thinking about colors differently?

Thank you for bearing with this very, very, very long post. I hope this made sense to people. I don't have the answers, I just find these to be interesting questions, and this is how I want to be talking about colorblindness. This is something I find very fascinating, and I'm glad people are talking about this subject in this way. Like many others, I'm sick and tired of that stupid "What color is this?" game! I know what color it is, you idiot. I just don't identify colors the same way you do.

P.S. As I preview my comment, it does not seem to be recognizing my paragraphs. I apologize if this carries over to the final post and the whole thing is one big blob. Oh well.

I'd have to agree with the post below about LEDs. I hate them with every fiber of my being, since the three most common colors are also the stoplight colors. Imagine having to look at a battery-charge indicator, needing a full battery (which is green, apparently) and not a charging battery (red, so they tell me). Perhaps trying to use a swipe card (such as the ones you see in hospitals and banks). Green means open, amber means enter code or swipe, and red means security is coming. Here you are, just trying to get to work, and now are wondering who all these idiots are that are now surrounding you.

(BTW, no I couldn't tell a single difference between any of the pairs, with the exception of woman in the dress... on the right, the dress is brighter, but otherwise appears to be the same color. Also, what is the difference in the pictures of the grinning dude with the button-up shirt and the lanyard around his neck? Second set, first pair.)

I can see it now. Ten years from now someone who read this post is going to be elected to congress and pass a bill to take away my drivers license (possibly under the guise of defeating global warming). Thanks in advance for relegating me to a bicycle!!!

I hate being colorblind. It is definitely a disability. I mean as humans we can view only a narrow section of the EM spectrum--specifically the visible spectrum! Now here I am hindered from a true perspective of the visible spectrum, something all ready limited in itself. Someone figure it out, slice my eye open and toy with those cones/rods, I just want to see the difference!