Glossary Of Computer Imaging Terms - Nikon Scanners Software Reference Manual

Glossary of Computer Imaging Terms

A/D Conversion
absolute address
analog gamma function
aspect ratio
analog signals
ASCII
aband sequential
binary
bit
binary images
byte sequential
buffer capacity
Software Reference for Scanners
Glossary of Computer Imaging Terms
analog to digital signal conversion.
the x and y pixel coordinates in a pixel map using global coordinates
in a locally cropped area of a larger image.
a non-linear function used in analog signal processing.
the ratio of width to height in an image.
these electrical signals represent or are "analogous" to real world
events such as a sound or pattern of light. An "analog" is a simile or
representation of something else.
a coding system used to represent characters using binary storage.
color pixels stored in separate planes in the same file, or as separate
files. Sometimes called planar, screen, or field sequential.
a number system which uses a base of two. Used for the majority of
computing systems, since electrical logic circuits are easily constructed
with a small positive (+) voltage to signify On, or True, and a nega-
tive (-) or 0 voltage used to represent Off or False.
A binary digit representing 0 or 1, true or false, plus or minus.
these are high contrast, bit-mapped images, used to represent line art
and typography.
color stored in triplet pixels for RGB, HSV, etc., or quadruplet pixels
for RGBÅ, YMCK, etc.
the available space to store information in any system. "Buffer" usual-
ly refers to intermediate storage for processes that would otherwise
bottleneck a system.
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