Creo CXP6000 Color Server, User Manual

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488 Spire CXP6000 Color Server User Guide
PSImage A low-resolution EPS file used in the Creo APR workflow. This file is
used for positioning in page layout. Changes made to this file will be
applied to the high-resolution file, which automatically replaces it
shortly before exposure. See also
APR .
Quartertone The tone area of an image influencing highlight detail and with
density values between the white point and midtone. Typically,
printed with a dot area near 25%. See also
Highlight , Midtone ,
Shadow.
Raster file A file of data that was scanned, processed or output sequentially, bit
by bit and line by line. Also known as a bitmap.
Rasterization The translation of vector information into bitmap information.
Bitmaps may also require a new rasterization to comply with the
screening parameters (dot shape, dot size) of the imagesetter that will
expose them on film. See also
RIP and RIPing .
Register Fitting of two or more printing images or plates in exact alignment
with each other.
Register marks Crosses or other targets applied to original copy prior to printing.
Used for positioning films in register or for register of two or more
colors in process printing.
Resolution
The number of pixels, points or dots per unit of linear measurement.
For example, pixels per millimeter on a video display, number of dots
per inch or millimeter on film or paper.
The resolution of an image is usually set the same vertically and
horizontally. For example, a square millimeter with a resolution of 12
contains 144 pixels. The higher the resolution, the more image detail
is recorded and the larger the digital file size.
RGB Abbreviation for the additive primaries Red, Green and Blue. They
are used in video monitors, scanning, and other uses where the light
is direct and not reflected. The component colors are the three
predominant colors in the visible light spectrum detected by the
human eye. Combining these 3 colors together creates white light.
RIP
Abbreviation for Raster Image Processor. This is a software program
or hardware device that converts vector information into pixel
information to be imaged on an output file. This output file is imaged
based on commands from the page description language.