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Colours and Afterimaging

Page history last edited by PBworks 16 years, 1 month ago

 

Colours & Afterimaging

 

Your cones (cells in retina) detect only RED, GREEN, and BLUE.

That is, those cones are sensitive to those three wavelengths.

That's the bad news. However, since our eyes and brains are so complex (advanced),

we can recognize 16,777,216 individual colours.

Mathematically, that's 256 x 256 x 256 = 16,777,216 !

 

Image:RGBCube b.svg

 

Do you understand this concept? Click the link below:

 

600px-AdditiveColor_svg.png

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 Additive Colour Space used in televisions & computer monitors.

 

 Subtractive Colour Space used in colour printing.

 

 

 

This is an interesting afterimage. http://home.no.net/antska/ Read the instructions and be patient. It's cool.

 

 

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