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Glossary of Computer Imaging Terms
A/D Conversion
analog to digital signal conversion.
absolute address
the x and y pixel coordinates in a pixel map using global coordinates
in a locally cropped area of a larger image.
analog gamma function
a non-linear function used in analog signal processing.
aspect ratio
the ratio of width to height in an image.
analog signals
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.
ASCII
a coding system used to represent characters using binary storage.
aband sequential
color pixels stored in separate planes in the same file, or as separate
files. Sometimes called planar, screen, or field sequential.
binary
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.
bit
A binary digit representing 0 or 1, true or false, plus or minus.
binary images
these are high contrast, bit-mapped images, used to represent line art
and typography.
byte sequential
color stored in triplet pixels for RGB, HSV, etc., or quadruplet pixels
for RGBÅ, YMCK, etc.
buffer capacity
the available space to store information in any system. “Buffer” usual-
ly refers to intermediate storage for processes that would otherwise
bottleneck a system.
Software Reference for Scanners
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Glossary of Computer Imaging Terms
Содержание Scanners
Страница 1: ...Software Reference for Scanners ...
Страница 14: ...Page XIV Software Reference for Scanners Table of Contents ...
Страница 36: ...Page 22 Software Reference for Scanners Software Installation IBM PC or Compatible Chapter 3 ...
Страница 92: ...Page 78 Software Reference for Scanners Setting and Restoring the Nikon Plug in State Macintosh Chapter 8 ...
Страница 126: ...Page 112 Software Reference for Scanners Cropping and Sizing Images Chapter 11 ...
Страница 132: ...Page 118 Software Reference for Scanners Film Type and Orientation Chapter 12 ...
Страница 146: ...Page 132 Software Reference for Scanners Focusing with Coolscan Chapter 14 ...
Страница 170: ...Page 156 Software Reference for Scanners The Gamma Curve Editor Dialog Chapter 16 ...
Страница 194: ...Page 180 Software Reference for Scanners Troubleshooting Windows ...