Avision AVA3 400 - Manual (Page 44)

Scanner Operation
4-17
Advance Settings: (PC)
Click the button and a dialog box in below will be
displayed. This dialog allows you to remove one of
the R(Red), G(Green), or B(Blue) color channel
while scanning. For example, if your image
contains red color text or red color background,
choose the R(Red) channel then any text or
background in red color will be removed. Yet this
function supports only black & white and gray
image. Therefore, be sure to choose any black &
white or gray image type while applying this
function.
Tip: An increase of brightness after removing one
of the color channel will make your image more
clear.
Auto Crop
Invert Image
Quality Mode
Speed Mode
Advance Settings
Color Matching