Brightness And Contrast Tool - Microtek ScanMaker 6100 Pro User Manual

Advanced Control Panel > Settings window

Brightness and Contrast tool

The Brightness & Contrast tool lets you control the brightness
and contrast levels of the entire image. Increasing the brightness
makes all tones in the image lighter. Contrast, on the other hand, is
the range between the darkest and lightest shades in the image,
and increasing the contrast makes greater separation between the
darkest and lightest areas of the image.
Click either one of thumbnails below to obtain a larger view.
Windows
Note: For color images ScanWizard 5 applies the same effect to all
channels.
Original
Macintosh
After Brightness After Contrast