Canon ColorPASS-Z5000 Color Manual page 201

G-3 Glossary
DCS (Desktop Color Separation)
A data file standard defined by Quark,
Inc., to assist in making color separations
with desktop publishing system; 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.
density
A measurement of the light-absorbing
quality of a photographic or printed
image.
densitometer
An instrument commonly used in the
graphic arts industry to measure density
according to a specified standard.
desktop color separation
See DCS
DIC
A Japanese standard of specifications for
separations, proofs, and color printing.
EPS or EPSF (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
copier, 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 copiers.