MacAction Help44
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This feature is not available when
is selected as Scan Mode.
(This function may or may not be available depending on the scanner
Image Gamma is used to adjust the colors in the image that will be scanned
into the computer. Gamma values are primarily a measure of the brightness of
a color. The larger the gamma value, the brighter the color becomes
the scroll bar to the right or left
The current value is shown to right of the scroll bar.
This feature is not available when
(This function may or may not be available depending on the
scanner model you purchase.)
Threshold sets the color level for converting an image to line art, which can
adjust the quality of line art image or eliminate unwanted dots in the documents
to improve OCR accuracy. This setting is available only when
the scroll bar to the right or left
The current value is shown to right of the scroll bar.
Color Dropout allows you to remove a color channel (Red, Green or Blue) while
scanning. This feature is available only when
For example, if your original document contains blue texts or a blue stamp (e.g.,
a bill or invoice) and you want to discard it from your image, you may select
from the drop-down list box
Descreen applies filtering to images that contain moiré patterns (or
herringbone). A moiré pattern is created from scanning pictures in magazines,
or printed material that use color dithering. The descreen filter is not needed
when scanning original photographs or black and white images and text, but is
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