how are there "more shades of green than any other color"?

[spidey07]

But that being said, the brain is absolutely more sensitive to green. It has to be, if it wants to pick out things through trees and grass.

ahhh, combining anthropology, physics, biology and psychology.

I love it.

But I still really want to learn more about the answer to both questions and read up on it.

 

[BD2003]

Originally posted by: spidey07

But that being said, the brain is absolutely more sensitive to green. It has to be, if it wants to pick out things through trees and grass.

ahhh, combining anthropology, physics, biology and psychology.

I love it.

But I still really want to learn more about the answer to both questions and read up on it.

Heh, and believe me, Ive only just scratched the surface. The visual perceptual system is an AMAZING thing. The eye/brain does not see the world the way a camera does. There is an incredible amount of processing done.

The image that your retina sends to your brain is fuzzy, upside down, blocked by its own sensor cells, and with a huge blind spot where the optical nerve that sends the signal to your brain is. Its then broken down into many different types of information, takes two different routes through the brain, the information from the three cones are converted to a four color system (blue/yellow, red/green), all the missing information is filled back in, depth is calculated, etc etc...

 

[spidey07]

The visual perceptual system is an AMAZING thing

yes it is. The brain just loves to "fill stuff in"

back in college I did a whole lot of research on hallucinations and what causes them and why LSD was such a powerful psychedelic. catch my drift?

<wink>

 

[BD2003]

If you really want to read up more on it, you can try going here:

http://www.ics.uci.edu/~majumder/docs/vispercep.htm

Specifically download the pdf on color perception. It will get a bit technical, but you can gloss over the equations if you want. Im sure after reading that, youll want to read the rest of them.

 

[nakedfrog]

Originally posted by: Lazy8s
I would argue that there are probably "an infinate shades fo every color" for the same reason if you keep getting 50% closer to a object you will never get there. It's the same principal as limits in calculus, there is no exact value to reach you can keep adding more decimals. However because of te sensitivity of the eye as well as processing power of the brain I could see the human body setting limits of the number of colors you can see.

Arguments like that have no basis in reality (which is hopefully what we're discussing). Sure, in theory you only get 50% closer every time, but that's only in looking at it from an absurdly scientific point of view (just like .999 = 1). Same with the infinite shades of every color. While that may theoretically be true, the difference between them would grow too small to be differentiated by any realistic method.
Then again, if you wanna just skewer towards whether reality is perception or perception is reality... well, then I win because you're all just figments of my imagination

 

[BD2003]

Originally posted by: nakedfrog

Originally posted by: Lazy8s
I would argue that there are probably "an infinate shades fo every color" for the same reason if you keep getting 50% closer to a object you will never get there. It's the same principal as limits in calculus, there is no exact value to reach you can keep adding more decimals. However because of te sensitivity of the eye as well as processing power of the brain I could see the human body setting limits of the number of colors you can see.

Arguments like that have no basis in reality (which is hopefully what we're discussing). Sure, in theory you only get 50% closer every time, but that's only in looking at it from an absurdly scientific point of view (just like .999 = 1). Same with the infinite shades of every color. While that may theoretically be true, the difference between them would grow too small to be differentiated by any realistic method.
Then again, if you wanna just skewer towards whether reality is perception or perception is reality... well, then I win because you're all just figments of my imagination

Of course there is a limit as to how many shades we can perceive. Thats why we dont need anything higher than 24-bit color. AFAIK, it is about 15 million shades, but dont quote me on that.

 

[So]

Originally posted by: spidey07

Originally posted by: RaynorWolfcastle

Originally posted by: spidey07

Originally posted by: iloveme2
I thought the shades of color were infinate?

there's only so many wavelengths of green so no, can't be infinite.
Green is in the middle of the visible light specturm and contains the most wavelengths.
That would be my reasoning anyway, not really sure.

visible light has a limited spectrum, but there are infinitely many wavelengths that light can take within that spectrum AFAIK.

well there are the specific frequencies to visible light and frequency and wavelenght are related to the constant speed of light.

but then again its been 12 years since I took physics for engineers.

There is an infitie number of non integer wavelengths in the spectrum, just like there is an infinite number of numbers between 0 and 1...

Originally posted by: Savij

Originally posted by: Heisenberg
The human eye is more sensitive to green than any other color, which means that you can distinguish more different shades of green than say red or blue. I'm guessing that's what it means.

We have a winnar!

This is the most accurate statement. The human eye can distinguish more clearly greens, so we can name more of 'em. In reality there are just as many of every color, but we can't tell the difference.

 

[BD2003]

This is the most accurate statement. The human eye can distinguish more clearly greens, so we can name more of 'em. In reality there are just as many of every color, but we can't tell the difference.

In reality, "green" doesnt exist. Just reflected light, which happens to be of specific wavelengths. We perceive green under certain conditions, but "green" does NOT objectively exist in reality, no matter how much that goes against common sense.

In reality, color doesnt "exist". It is a product of our brain, and nothing more. We are just more sensitive to the wavelengths that roughly correspond to green.

 

[Babbles]

As others have said, the human eye detects more various wavelengths - shades - than any other color. Chief reason that night vision goggles show in hues of green, they pick up 'green' wavelengths and since we can see more of those it makes sense to use that to add more depth.