MadSci Network: Neuroscience

Subject: How many shades of gray can the average human eye see?

Date: Mon Oct 11 16:52:20 1999
Posted by Nicola
Grade level: nonaligned School: No school entered.
City: Denver State/Province: CO Country: USA
Area of science: Neuroscience
ID: 939675140.Ns

I understand that what we perceive as color is the reflection or absoprtion 
of light. I also understand that some people have a greater ability to 
distinguish between varying wavelengths or reflections of color, and that 
this may vary (i.e. colorblind may be able to see a greater number of 
What I would like to know is the average number of grays or colors an eye 
with normal vision can see.

Re: How many shades of gray can the average human eye see?

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