Avision AV261C - Manual (Page 19)

4-5
4.2 Scanning Parameters & Image Control
Resolution: The number of dpi (dots per inch) that AV261C
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.