. . "Generally speaking, the luminosity of a certain pixel is described as L = B + x*C, where B is a value that directly depends on the Brightness setting of the monitor, C is a value that depends on the Contrast setting, and x is the signal the pixel receives from the computer (x=0 corresponds to black color, while the maximum value of x ??? to white; I???m not counting gamma correction in, as I???m g" . .