Direct Color
As the number of bits increases, the number of possible colors becomes impractically large for a color map. So in higher color depths, the color value typically directly encodes relative brightnesses of red, green, and blue to specify a color in the RGB color model. Other color spaces can also be used.
A typical computer monitor and video card may offer 8 bits of color precision (256 output levels) per R/G/B color channel, for an overall 24-bit color space (or 32-bit space, with alpha transparency bits, which have little bearing on the color precision), though earlier standards offered 6 bits per channel (64 levels) or less; the DVD standard defines up to 10 bits of color precision (1024 levels) for each of the Y/U/V video encoding channels (luminance plus two chrominance channels). The Blu-ray standard only supports 8 bits of color precision per channel.
Read more about this topic: Color Depth
Famous quotes containing the words direct and/or color:
“James’s great gift, of course, was his ability to tell a plot in shimmering detail with such delicacy of treatment and such fine aloofness—that is, reluctance to engage in any direct grappling with what, in the play or story, had actually “taken place”Mthat his listeners often did not, in the end, know what had, to put it in another way, “gone on.””
—James Thurber (1894–1961)
“Surely the day will come when color means nothing more than skin tone, when religion is seen uniquely as a way to speak one’s soul; when birth places have the weight of a throw of the dice and all men are born free, when understanding breeds love and brotherhood.”
—Josephine Baker (1906–1975)