Xerox Fiery color server User Manual page 113

G-3 Glossary
DCS (Desktop Color Separation)
A data file standard defined by Quark,
Inc., to assist in making color separations
with desktop publishing systems; five
files are created—four color files (one
each for C, M, Y, and K) and a
composite color preview file of the color
image. It allows an image-editing
application to perform color separation
and pass it through to final output with
its integrity intact.
densitometer
An instrument commonly used in the
graphic arts industry to measure density
according to a specified standard.
density
A measurement of the light-absorbing
quality of a photographic or printed
image.
desktop color separation
See DCS.
DIC
A Japanese standard of specifications for
separations, proofs, and color printing.
EPS (or EPSF)
See Encapsulated PostScript.
Encapsulated PostScript
A PostScript file format designed to be
embedded in another PostScript stream.
Euroscale
A European standard of specifications
for separations, proofs, and color
printing.
flexography
A printing technology that uses flexible
raised-image plates. Flexography can be
used to print on non-flat materials such
as cans.
four-color printer
A printing device that uses cyan,
magenta, yellow, and black ink or toner.
gamma
A numeric value representing the
relationship (gamma curve) between the
input and output values of a color
device. If gamma equals 1, input values
are mapped exactly to output values.
gamut
A range of colors. A device gamut is the
range of colors that a device, such as a
device, can produce. An image gamut is
the range of colors in a particular image.
gamut mapping
The conversion of color coordinates
from one device's gamut to another—
usually accomplished with algorithms or
look-up tables.
GDI (Graphics Device Interface)
Graphics and display technology used by
computers running Windows. GDI
applications rely on GDI (rather than
the PostScript language) to send text and
pictures to devices.