DisplayMaker Legacy ColorMark+ - User Guide

B-2
additive primaries
Red, green and blue are the primary colors of light from which
all other colors can be made.
bit
Binary digit, the smallest unit of information in a computer, a 1
or a 0. It can define two conditions (on or off).
bit depth
The number of gray levels or colors that the pixels in a bitmap
can contain. Bit depth is a binary unit of measurement. A 1-bit
image can contain only two gray levels or colors (a black-and-
white image); an 8-bit image allows 256 gray levels or colors; a
24-bit image allows about 16 million colors.
bitmap
A digitized image consisting of a grid of pixels. The density or
color intensity of each pixel is expressed in binary digits or bits.
See also bit depth.
calibration
The adjustment of a device by measuring its deviation from
standard values and then, during operation of the device, apply-
ing values to compensate for the deviation. In prepress, in par-
ticular, calibration is the fine-tuning of scanners, monitors,
printers, imagesetters, and slidemakers in order to increase the
accuracy of their output.
calibration bar
On a film, proof, or print, a strip of tones used to check printing
quality.
calibration curve
During the calibration, a curve established by measuring the
degree in which the printed densities differ from the required
densities. The curve is plotted by measuring this deviation on a
number of density levels. See also transfer function.
chroma
The attribute of color perception that express the degree of
departure from a gray of the same lightness.