Nikon LS-3500 - LS-3510 User Manual

Page 82

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8-10

Glossary

Software Reference for Scanners

are taped in register in a sandwich so they can be

viewed together or separately. More common are

Matchprints®, Chromalins®, etc., where the four

layers are reproduced in register on one sheet which

is then laminated. The above proofs are all

photographic in nature and produce a hard dot

structure unlike ink, which bleeds. The final proof

type is a press proof, which requires expensive setup

and prep time. It does, however, simulate the press

run very accurately.

progressives

a four color ink proof made on press, where each

plate is printed separately and in various

combinations with the other three so that the four

color images can be properly evaluated for dot gain

and the overall quality of the color separations. Also

called “progs”.

prescan

photometry performed by the scanner before a

screen preview.

pseudo-color images

when colors are assigned to monochrome shades to

give meaning to areas in the picture. Often used in

satellite imagery to define vegetation and geological

information. Can also refer to simple tinting of

monochrome images, like oil-coloring BW prints.

RAM

Random Access Memory.

raster

a lattice of parallel lines used to represent an image

by varying the brightness of points on each line. The

raster is a regular pattern of thin, horizontal, equally

spaced bars.

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