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G-5
Glossary
closest printable colors. Solid color
rendering does the best job of preserving
the saturation of displayed colors.
source color space
The color environment of the
originating source of an image, including
scanners and color monitors.
source profile
A profile used by the color management
system to determine the context for the
color values specified in a digital image.
spectral light
The wavelengths of electromagnetic
radiation emitted by a given light source
that can be seen by the human eye.
spot color
A color that is printed on its own
separation plate when separations are
specified. A spot color is printed using a
special ink for that color, in contrast to
process colors that are printed using
combinations of cyan, magenta, yellow,
and black.
subtractive color model
A system in which color is produced by
combining colorants such as paint, inks,
or dyes on media such as paper or
transparent film or acetate. All printing
devices use the subtractive color model.
subtractive primaries
Cyan, magenta, and yellow colorants
used in subtractive color systems for
color printing. Combining the
subtractive primaries produces darker
colors. Black is added to the subtractive
primaries to compensate for deficiencies
of the toners or inks, and for more
efficient black printing.
SWOP
The abbreviation for Specifications for
Web Offset Publications. A standard of
specifications for separations, proofs, and
color printing.
trapping
The practice of adjusting the borders of
adjacent images that do not share
common colors. Trapping compensates
for misregistration of inks or toners
during printing.
vector image
Graphic illustration created on
computers where picture elements are
defined mathematically as lines or curves
between points. These mathematical
definitions are interpreted by a computer
language such as PostScript. Vector
images include artwork created with
illustration applications (such as
Illustrator or FreeHand) and page layout
applications (such as PageMaker).
white point
The color temperature of a color
monitor (or any white light source),
typically expressed in degrees Kelvin (for
example, 6500 K).