Nikon LS-3500 - LS-3510 - Manual (Page 77)

Glossary 8-5
Software Reference for Scanners
dither to make use of different tonal values or shades
together in a pattern to smooth the transition
between two different tonal areas. To create the
appearance of more gradations by blending small
components of different densities alternately
together.
dither pattern a two-dimensional matrix used in the dithering
process. This commonly measures from 2x2 up to
8x8 cells, with different values in each cell. As the
dither matrix grows, more shades can be simulated,
but the image will appear less and less defined
(sharp) as small details of high contrast pixels are
spread over a wider area.
driver an intermediate software or firmware controller for
various input/output devices connected to a
computer, and the application running on it.
EEPROM or E2PROM Electrically Erasable Programmable Read Only
Memory.
effective reading area the useful reading area on the Nikon scanner.
emulsion The light sensitive coating in photographic film or
paper. The side of the film bearing the emulsion or
image layer is usually slightly matte (non-reflective)
when viewed with an oblique light source, compared
to the base or non-emulsion side. Can also be
determined from the readability of the manufacturers
identification markings. When these ID’s are
readable (film direction arrows will always point to
the right), the emulsion side is facing away from
you.