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Scanning from PaperPort
Adjusting the Image Type, Resolution, Brightness and Contrast
Image Type
Resolution
Brightness
Contrast
File size
Halftone Example
36
The Scan Manager's drop-down lists and sliders are used to adjust
the image type, resolution, brightness, and contrast.
Image Type
From the Image Type drop-down list, select the appropriate image
type for the item(s) you're scanning.
•
Black and White—scans in black and white. The scanning
pixels are all the same size and are either black or white. Use
this setting for letters, memos, pen and ink drawings, and other
black and white material. This setting produces the smallest file
size for scanned items.
•
Halftone—scans the image so it appears to consist of gray
tones. A pop-up menu appears so you can choose one of the
halftone options. Notice that the preview image changes as
you select each option so you can see which one is best for
scanning. Halftones produce simulated gray tones by using
black and white pixels of different sizes and is often used to
produce newspaper and magazine images. Use this setting for
lower resolution black and white images. The halftone settings
also produce small file sizes.
•
8-Bit Gray—scans the image using up to 256 true shades of
gray. Use this setting to scan black and white photographs and
other higher quality black and white images. You can also scan
a color photo with this setting to turn its colors into gray shades.
The file size is about one third the size of a color scan.
•
24-Bit Color—scans the image in full color. Use this setting to
scan color photographs and other color images. The file size is
the largest of the image type options.
DocuMate 520 Scanner Installation Guide
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