Xerox Document Workstation with PlotWorks Support & Software User Guide

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Chapter 9-80 • PlotWorks User Guide
Contex FSS/FCS Scanners
This section details features and settings specific to the Contex FSS scanners. 
Options not mentioned are considered to be standard for all scanners. These are 
described in Chapter 9 - The Scanner Interface.
Fig 9.37 
Contex 
FSS Scan 
Controls
The following modes are unique to the FSS scanners:
Bilevel: This mode works best with line art.
Dither/Halftone: This mode works best with photo or grayscale images.
The following enhancement buttons are available for all modes:
Threshold: Lets you set the point that divides black (0) and white (100) data. 
Any scanned data that is lighter than the threshold value will display as white. 
Any scanned data that is darker than the threshold value will display as black.