Xerox Fiery color server User Manual page 114

G-4 Glossary
GIF (Graphics Interchange Format)
A standard developed by CompuServe
for bitmap graphics of up to 256 colors
and used for posting photographic
images on the Internet or intranet pages;
rarely used for professional printing.
gradient
A smooth transition between two
different colors or two shades of a color.
Graphics Device Interface
See GDI.
Graphics Interchange Format
See GIF.
gravure
A printing technology that uses an
etched cylinder that has been immersed
in ink. The ink that remains in the
etched areas is applied to the paper. The
non-etched surfaces of the cylinder are
non-printing areas.
gray component replacement (GCR)
In shadow, midtone, and quarter-tone
areas where all three process colors
(C, M, Y) overprint, the gray
components of those colors are
reduced and replaced by black. This
improves wet ink trapping and reduces
ink costs in process color printing.
halftoning
A method for representing an original
continuous tone image using a pattern of
dots, lines, or other patterns.
HSB
A color model where each color is
represented by its hue, saturation, and
brightness components; supported by
most color applications.
ICC profile
An industry standard color profile
format developed by the International
Color Consortium (ICC) that describes
the color capabilities, including the
gamut, of a color device based on the
differences between an ideal and the
current device. The ideal is often
provided by the manufacturer as a color
reference file. ICC profiles are
implemented on Mac OS computers in
ColorSync and on Windows computers
in Image Color Matching (ICM). The
Color Server color management system,
ColorWise, supports ICC profiles.
imagesetter
Raster-based film output device; a high-
resolution laser output device that writes
bitmapped data onto photosensitive
paper or film.
JPEG
A graphics file format defined by the
Joint Photographic Experts Group
committee of International Standards
Organization (ISO); a standard for
digital compression of still image graphic
data.