Avision AV626C - Manual (Page 20)

4-5
4.2 SCANNING PARAMETERS & IMAGE
CONTROL
Resolution: The number of dpi (dots per inch) that the
scanner 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