Microtek ScanMaker 5, User Manual

Page: 23 / 68

Basic Scenarios 3-11
English
The Descreen tool is used to remove “screens” or moiré patterns from appearing in
images. Moirés are interference patterns that show up on your scanned images when
you scan images from magazines and newspapers. Moiré patterns emerge as a series
of crosshatches or screens crisscrossing in the image.
In the example in previous page, the top image was scanned from a magazine,
resulting in an undesirable moiré pattern. The solution: rescan the image using the
Descreen tool. This will eliminate potential moirés from appearing in the resulting
image as illustrated by the bottom image.
View the prescanned image in
the Preview window to see a
real-time display of the fine
tuning results except descreen
result.
Define output image settings and
access Advance Image Correction
tools from Settings window
5
When using
"Descreen," printed
matter type must be
defined.
If you know the
printed lpi (lines per
inch) for the image
type, you may enter
the exact lpi value in
the Descreen Custom
dialog box. Click on
“Descreen” button to
display the dialog box
(right)
3
2 6
4