Canon 4.1 - Manual (Page 55)

55
S T E P 3
Descreen
Select this option if you want Plug-in Module CS-U to conduct moiré reduction to
improve the overall image quality. Moiré are dot patterns that interfere with
processing images for professional use and are usually caused by poor dithering
resulting from scanning images from newspapers, books, magazines, etc.
Caution
• When you select [Film] in the [Preferences] menu, the Descreen function is
not available.
• The Descreen function cannot be switched on for scanning resolutions
higher than 601 dpi.
• The previous setting is enabled for the Descreen function when Plug-in
Module CS-U is opened by a software application operating in the
windowless mode.
Operating Procedures
Open the [Image] menu and select [Descreen].
A check mark will appear beside the Descreen option in the menu when this function is
set to On. To set it to Off, reselect it. The check mark will disappear.
Hint
• When the Descreen is on, it may take longer to scan.