Xerox Document Workstation with PlotWorks Support & Software 用户指南
PlotWorks User Guide • The Scanner Interface • Chapter 9-5
The Scan Controls tabbed window
Fig 9.2
Scan
Controls
tabbed
window
The following options are available on the Scan Controls tab window:
•
Configuration: Is used to view, save, and select a configuration file.
•
Mode: Select the appropriate scanner mode (available modes depend on the
scanner).
scanner).
Possible modes are:
•
Bilevel (Manual): This mode works best with line art that has a fairly
constant background
constant background
•
Bilevel (Adaptive Area): This mode works best with line art that uses
text or other fine lines, with a varying background (such as a faded
blueline). Adaptive thresholding allows the Scanner Interface to set
different white point (background) values for different areas of the
image. The white point is set by determining the difference between the
background and the data in a set area. The size of this area is specified in
the Area Size setting. This mode does not work well with documents
containing large black areas.
text or other fine lines, with a varying background (such as a faded
blueline). Adaptive thresholding allows the Scanner Interface to set
different white point (background) values for different areas of the
image. The white point is set by determining the difference between the
background and the data in a set area. The size of this area is specified in
the Area Size setting. This mode does not work well with documents
containing large black areas.