G-100
Glossary
Color Reference Guide for C9800 - 100
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.
GCR
See
.
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.
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
Graphics Interchange Format
See
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)
A method for improving wet ink trapping
and reducing ink costs in process color
printing. 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.
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.
HSL
A color model where each color is
represented by its hue, saturation, and
lightness components.
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
Summary of Contents for C9800hdn
Page 1: ......
