Avision AV620C User Manual
Page 23
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4-5
4.1 Scanning Parameters & Image Control
Resolution:
The number of dpi (dots per inch) that
AV620C uses for a scan. Usually the greater
the number, the higher the resolution. Yet
up to a certain level, the resolution will not
be visually increased but the disk space will
be increased.
Brightness:
Adjusts the lightness or darkness of an
image. The higher the value, the brighter the
image.
Contrast:
Adjusts the range between the darkest and
the lightest shades in the image. The higher
the contrast, the bigger the different gray
scales.
Resolution
Brightness
Contrast
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