Contex SD One+ - Page 61

Service Guide SD One+ 61
Lossy Compression:
File compression that will compress data to a high degree. When subsequently un-compressed, data will have been
lost.
LZW:
Method of lossless compression used with many file formats; developed by Lempel, Zev and Welch.
Midtones:
The most important part of a picture between black (shadows) and white (highlights).
Negative:
A reversed photographic image used to produce a positive print or a scanned image.
NET - NET Architecture:
NET Architecture is a solution for scanning across local networks.
What does it do?
 Enables Sharing a scanner on a network.
 Enables scanning to a Designated Scan.
Folder on another computer. NET Architecture allows a scanner to scan to a client PC in a single coherent and
secure process. The client does not need to expose or share his local hard disk as the system can be set up for
authorized transfer to the client. Example of usage - a company that
needs to create digital documents of its drawing archive, can send the drawings to a service bureau that scans all the
documents directly to the client (company) file server allowing immediate feedback from the client and prevents digital
distribution of confidential documents outside the client company. NET Architecture also allows users in a company to
use a scanner, from their own PC workstations although the scanner is physically placed elsewhere. It only need to
be on the same LAN. In this way a single scanner is “shared” throughout the company.
Noise:
A term used to describe the occurrence of pixels that contain random colors within an image.
Original:
The paper, negative, slide, or film to be scanned.
Palette:
The set of colors available for an image.
PICT:
A file format for pictures used primarily on the Macintosh.
Pixels Per Inch (ppi):
A measurement of resolution for scanners, where the individual element is a square picture element (pixel).