Canon PIXMA MX870 - Manual (Page 687)

Advanced Guide > Scanning > Scanning with Other Application Software > Correcting Images and Adjusting Colors with
ScanGear (Scanner Driver) > Adjusting Brightness and Contrast
Adjusting Brightness and Contrast
In ScanGear (scanner driver)'s Advanced Mode tab, click (Brightness/Contrast).
Note
Click (Down arrow) to switch to detailed view. Click (Up arrow) to return to the previous view.
Click Defaults to reset all adjustments in the current window.
Channel
Each dot of an image is a mixture of Red, Green and Blue in various proportions (gradation). These
colors can be adjusted individually as a "channel."
Master
Adjust the Red, Green and Blue combined.
Red
Adjust the Red channel.
Green
Adjust the Green channel.
Blue
Adjust the Blue channel.
Page 687 of 1127 pages Adjusting Brightness and Contrast