Brightness And Contrast - Plustek V1.2 User Manual

during scanning, and is the best choice for scanning pictures and
documents that contain detailed colour and graphics. The RGB
Colour option, when selected, enables the scanner to scan at its
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maximum bit capability (2 =1,073,741,824 colours).
Resolution
Resolution is how many dots per inch (dpi) or pixels are scanned.
For example, if you scan a Greyscale image at a resolution of
150, the hard disk space needed to scan a letter size document
will be approximately 2.6 MB. For a listing of what resolutions
you should use with each mode, see the end of this chapter and
Scanning Hints .
Scale
Scale is for adjusting the size of scanned images. For example,
when scanning to an image-editing programme, like IMAGE-IN
or Photo Magic, you can pre-adjust how big, or how small the
image will look after it enters your system. The scale can also
depend on what resolution you have your display set at, and the
scan resolution.

Brightness and Contrast

Brightness is the amount of light that is concentrated onto a
document while it is being scanned. Adjust the brightness by
sliding the button located between the arrows either left or right.
Turn the brightness down if characters are thick and dark, and up
if characters are thin.
Contrast adjusts the tonal range of an image by lowering mid-
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