UMAX Astra 6400/6450 Owner’s Guide
35
Using Custom Descreen Settings
You can also specify custom descreen settings that you can use
when you want to change the lines per inch setting to eliminate
patterns that are generated while scanning printed images. You can
enter custom settings that range from 35 to 400 lines per inch. To
define the custom descreen settings:
1.
Choose the
Custom…
option from the Descreen drop down
menu. The Custom Descreen window opens.
2.
Enter the desired lines per inch setting (between 35 and 400 lpi)
in the Custom descreen lpi #1 text box.
3.
Repeat step 2 to define the Custom descreen #2 and Custom
descreen #3 settings.
4.
Click
OK
. The settings you defined appear on the Descreen
setting drop down menu, under the Custom heading.
Changing the Filter Setting
Image filters are used to soften or sharpen edges and boundaries of
an image.
VistaScan provides the following filter options:
No Filter
— Use this option when you do not want to sharpen or
blur the image.
Sharpen
— Use this option to sharpen lines that may be fuzzy or
not clean in the original image.
Summary of Contents for Astra 6400
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