UMAX Astra 2000U/P Owner’s Guide
109
Glossary
Additive Primary Colors
-Red, Green, and Blue light that produce
white when mixed together. A color monitor or color scanner is an
example of an additive color device.
BET-
A UMAX patented technology that increases the dynamic
range and decreases overall noise for improved image quality
.
Bit Map Image
-An image comprised of pixels, or binary digits,
that can be bi-level (line art), continuous tone gray or continuous
tone color.
Calibration
-To check, adjust or standardize the graduations of a
device.
CCD
-Charged Coupled Device. An optically sensitive IC chip.
This IC chip is the standard image-capturing tool for many scanners
and digital cameras.
CIS
(Contact Image Sensor)-A scanning sensor beginning to appear
in low resolution, low cost scanners. Provides lesser quality scan
then CCD due to limited depth of field and poor shading sensitivity
.
CMYK
-Represents the three subtractive primary colors Cyan (C),
Magenta (M), Yellow (Y), and Black (K). An offset press is an
example of a CMYK device.
Color Separation-
The
conversion of RGB or LAB image
information into CMYK information prior to printing.
ColorSync
-Built-in color management architecture specifically in
the Macintosh OS.
Color Space-
A
two or three-dimensional geometric representation
of colors that can be seen or generated. RG13 is an example of a
two dimensional color space. LAB is a three dimensional color
space.
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