Visioneer 8820 Scanner User Manual


 
ADJUSTING THE SETTINGS ON THE SCAN MANAGER PRO 49
ADJUSTING GAMMA, SATURATION, AND COLOR HUE
If you’re using the Color Configuration to scan, you can adjust a group
of color settings. Gamma controls the brightness of the midtones of the
color, saturation is the strength or purity of a color, and hue is the color
your eyes see as reflected from the image. These color settings are
represented by a response curve.
The horizontal axis of the response curve represents the original settings
of the image, and the vertical axis represents new settings. Thus, the
curve is a straight line from the lower left to upper right for an original,
unchanged image. To see how the response curve indicates changes, drag
the Gamma slider to left and right.
The following figure shows the color options: