Can anyone prove that we all see the same color?
Are there any cases where one sees brown and others see it to be green, but they both call it Red?
When one grows up, either his/her parents or teachers tell what a color is called...like, they show leaves and say it is green in color. But, can anyone assure that both the teacher/parent and the child see the same color? There are cases in which one sees some orange, but his parents and teachers call it some purple. And, it is true that throughout the life, right from the birth, one feels that sky is always red (which he calls to be blue but is actually the pleasing blue to others).
For the question, if everyone sees the same color, answer would definitely be 'Yes' since we all have the same photo receptors that detect color, we all see the same in this until and unless these receptors do not function properly. So, there is no confusion with respect to color that we see.
This improper functioning of those receptors can be termed as color blindness.
Let us consider this example: Look at this figure....
For people with normal vision: We can see 0 to 9 in different squares
For color blind people.. it looks like something this:
There will be no differentiation between the shades.
Here is another example:
Consider the following illustration:
This figure if shown to a person with normal vision, he can see number 7 between pink, yellow and orange bubbles.
But, if we show the same figure to a person who is color blind, it looks something like this to him:
He cannot see 7 in that figure as the pink, yellow and orange seem to be green (different shades of green) to him.
The interesting thing is that, right from his childhood, he has been thinking that the color which everyone terms as pink, and which he feels to be pink is actually green and he will never ever know the same in his life.
Around 5% of population is color blind as per some study. We never know if we are color blind... Chances are high that the color which we feel to be particular color may actually seem another color to other...
Are there any cases where one sees brown and others see it to be green, but they both call it Red?
When one grows up, either his/her parents or teachers tell what a color is called...like, they show leaves and say it is green in color. But, can anyone assure that both the teacher/parent and the child see the same color? There are cases in which one sees some orange, but his parents and teachers call it some purple. And, it is true that throughout the life, right from the birth, one feels that sky is always red (which he calls to be blue but is actually the pleasing blue to others).
For the question, if everyone sees the same color, answer would definitely be 'Yes' since we all have the same photo receptors that detect color, we all see the same in this until and unless these receptors do not function properly. So, there is no confusion with respect to color that we see.
This improper functioning of those receptors can be termed as color blindness.
How do a color blinded person see the world?
Let us consider this example: Look at this figure....
For people with normal vision: We can see 0 to 9 in different squares
For color blind people.. it looks like something this:
There will be no differentiation between the shades.
Here is another example:
Consider the following illustration:
This figure if shown to a person with normal vision, he can see number 7 between pink, yellow and orange bubbles.
But, if we show the same figure to a person who is color blind, it looks something like this to him:
He cannot see 7 in that figure as the pink, yellow and orange seem to be green (different shades of green) to him.
The interesting thing is that, right from his childhood, he has been thinking that the color which everyone terms as pink, and which he feels to be pink is actually green and he will never ever know the same in his life.
Around 5% of population is color blind as per some study. We never know if we are color blind... Chances are high that the color which we feel to be particular color may actually seem another color to other...
Badri, good topic, nice explanation...How can we check whether we are having color blindness or not... :(
ReplyDeleteYeah.. no problem... You are able to see number 7 in so called green color... so u r alright :-)
ReplyDeletenice insight! yeah,it would be hard to interpret in childhood if one has a color blindness. Perhaps, there gotta be periodic eye check-up in place.
ReplyDeleteI guess driving license are not issued for people with color blindness(at least legally)
bdw..looks like I am not color blinde,a/c to your analysis!thanks
Yes Rahul :-)
ReplyDeleteIn addition to driving license, people with disability will not be taken into Navy, Air force and Army services.
anna naku 7 nujber kanipiyatledu hmmmmmmmmmmmmm.......wt to do
ReplyDelete:0 Shashanka...
ReplyDeletemee medical vallaki teliyali mari :-) we are like small kids in-front of u ...
if I say anything.. it is something like telling our mama's name and address to our mom .. he he
Nice way to open up a blog Badri, first thing I would like to share is a person need not be color blind that he identifies the colors in a different way (not the way that a normal person identifies) also that the variety of shades makes him feel like that (mean to say that sometimes few shades of color will be more dominating that he might be forced to ignore the ones beside them).., Anyways, Iam not that techi that I can comment much..., and also if you can change the line as - it looks something like this: rather than it looks like something this:
ReplyDeletehmmm anta ledu anna naku..but 7 number ekada undi
ReplyDeleteAyyo... :-(
ReplyDeleteFirst figure lo Seven ane number is in green color between those pink and yellow dots... in second figure u cannot see 7 Shashanka.. Sarigga chudu oka sari..
Hello Sree Sairam.. thanks for your comments...
ReplyDeleteone cannot differentiate various shades if he is color blind... Just would like to add that we cannot define a color as we cannot feel it.. we cannot measure it... So.. we cannot confirm that we do have proper vision.
The correction that u have made is right... a small mistake frm my side :)
thanks a lot for your correction :-)
Please keep me updated with your inputs..
Hey Badri, I somehow felt the opening lines of this article are a bit misleading. They somehow convey the message that all children see the same color and interpret it to be some different color, which I think is not right they see some color and they are confused with the names. The former is true for color blind and the later may be true for normal people. The opening lines could be reorganized to emphasize that you are referring to a specific case of vision impairment (read color blindness) and not a universal case!
ReplyDeleteThanks.
Premasai!
Hello Raghuram, Thanks for ur time..
ReplyDeleteHmm.. I thought that I have mentioned this line "For the question, if everyone sees the same color, answer would definitely be 'Yes' since we all have the same photo receptors that detect color, we all see the same in this until and unless these receptors do not function properly. So, there is no confusion with respect to color that we see." hence confirming that we all see the same color until and unless we have a deficiency..
Will keep this point in my mind while posting to ensure that the central idea is not misleading.
Thanks.