RE: filmscanners: This Gamma Thing...?

[Tom Christiansen <tomchr@softhome.net>]

Hi Henry,

>>Here is Giorgianni and Madden's definition from "Digital Color Management":
>>"Exponent of a power-law equation relating CRT luminance to control-signal
>>voltage". Also, "The slope of the straight-line portion of a CRT
>>characteristic curve relating log luminance to log voltage." Anyhow, that's
>>why if you play with it, it changes the appearances of images on the screen.
>>You're basically changing the voltage applied to the phosphors given a
>>certain digital input value, thus changing the luminance. You're changing
>>the shape of the curve of RGB value vs. voltage applied.
>
>I bet that will satisfy his curiosity and teach him not to ask questions. 
>:-)   <-- By the way, notice the smiley face -- I'm only joking.

ROTFL!! I happen to be an electrical engineer. It didn't frighten me one 
bit... :-))


BTW: I'm reading that gamma guide Maris dropped a link to. It's pretty 
good. I'm learning stuff.


Tom