Xerox DocuMate 3125 Benutzerhandbuch Seite 149

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Xerox DocuMate 3125
Number—this is the maximum number of dots within the radius that should be considered a
speckle. If this number of dots are in the circle, the dots will not be considered a speckle and
remain in the image. If there are less than this number of dots in the circle, the dots are
considered a speckle and removed from the image.
For example, if the radius is 3 and the number is 5, then the document is evaluated in sections
of 3x3 pixels and if there are more than 5 stray dots within a 3x3 area, they are not considered
a speckle.
Filter
Use the Filter option to increase or decrease the sharpness in the scanned image. Click the drop
down menu and select an option from the list. Use the Mask slider to adjust the tolerance level
of the filter.
Moiré Reduction
Moiré patterns are wavy or rippled lines that may appear in the scanned images of newspapers
and magazines, and sometimes scanned images of photos, line drawings, and color scans of
textured paper. Select the Moiré reduction option to have the driver attempt to find and
remove moiré patterns from the image. Please note that when Moiré reduction is enabled the
scanner may scan slower as the image is checked for moiré patterns. This option is only
available when scanning in Color or Gray.
Image with moiré patterns
Moiré radius—you can set the size of the area to be evaluated in the Moiré radius field.
Adjusting the radius will produce different results for the various types of items that can be
scanned. With this feature, you may have to test scan a few times, adjusting the Moiré radius as
needed, until you obtain the best results for the type of paper in your scan job. Note that the
higher the number is in the Moiré radius field, the longer it will take the driver to evaluate the
image.
7-141
Scanning from TWAIN and WIA
Image with moiré patterns
removed
User's Guide