Avision AV100CS - Manual (Page 31)

4-8
4.5 Image Control
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.
Gamma: Adjusts the midtone of the image without losing
details of the lightest and the darkest areas.
Highlight: Adjusts the highlight area of the image.
Shadow: Adjusts the darkest area of the image.
Auto Level Automatically adjusts the highlight and shadow
areas of the scanned image to give it an optimal
effect.