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around’ resulting in diffusion of sharp lines and loss of definition.
This can be minimized with thinner emulsions and a light absorbing
base under the sensitized layers.
high-key
describes an image where most if not all of the subject matter has a
density range from midtones to highlights. A predominantly light
picture.
line-sequential
where color is stored in RGB, YMCK, etc. lines of pixels instead of
bytes or planes. Sometimes called row sequential for a horizontal
raster.
luminance
see color models.
low-key
describes an image where most if not all of the subject matter has a
density range from midtones to shadows. A predominantly dark pic-
ture.
LUT
look-up-table — used to transpose one value into another via some
predetermined scheme.
LSB
least significant bit — the right-most bit in a binary code.
mapping
assigning colors to particular areas of an image based on shade or
some other description. Often used to produce visually continuous
tone color images when there are very few colors available in the
palette to do so.
moire
an undesirable visible interference pattern created when dot screens
overlap at certain frequencies. This pattern can be eliminated (sub-
dued) through trial and error and compromise. The angles and fre-
quencies of the four process screens must be manipulated to reduce
the effect.
MSB
most significant bit — the left-most bit in a binary code.
Photometry
the process of reading densities through photoelectric conversion.
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 ...