Microtek di 1210 Reference Guide
25
Descreen
The Descreen feature lets you remove moiré patterns from printed materials. Moirés
occur when you scan a screened original (mostly reflective or previously printed
material, such as pictures from a newspaper or magazine). These patterns appear to
the naked eye like a series or grid of dots or as shown in the example below.
occur when you scan a screened original (mostly reflective or previously printed
material, such as pictures from a newspaper or magazine). These patterns appear to
the naked eye like a series or grid of dots or as shown in the example below.
To set the screen for your needs, follow the steps below:
1. Click the Descreen options menu.
2. When the Descreen options menu comes up, select the screen for your needs, or
choose Custom to set your own Descreen options.
3. When the Descreen dialog box comes up, enter a value that best corresponds to
the dot quality of the original in which the moiré is to be removed. You may use a
screen finder to measure the print screen lpi. Please contact your local print shop
for more information on how to obtain a screen finder.
screen finder to measure the print screen lpi. Please contact your local print shop
for more information on how to obtain a screen finder.
·
Set a value from 50 to 85 if the original image has a coarse dot pattern, as in
images taken from a newspaper.
images taken from a newspaper.
·
Set a value from 100 to 133 if the original image has a fine dot pattern, as in
images taken from a magazine.
images taken from a magazine.
·
Set a value from 200 to 250 if the original image has a very fine dot pattern
with a near-photographic quality, as in images taken from a high-quality art
magazine.
with a near-photographic quality, as in images taken from a high-quality art
magazine.
If you have several frames with each one having a descreen setting, then the scan
will be performed based on the descreen setting of the main frame.
will be performed based on the descreen setting of the main frame.
Before
After