Advanced Guide > Scanning > Scanning with Other Application Software > Correcting Images and Adjusting Colors withScanGear (Scanner Driver) > Adjusting Brightness and ContrastAdjusting Brightness and ContrastIn ScanGear's Advanced Mode, click (Brightness/Contrast).NoteClick to switch to detailed view. Click to return to the previous view.ChannelEach dot of an image is a mixture of Red, Green and Blue in various proportions (gradation). Thesecolors can be adjusted individually as a "channel."MasterAdjust the Red, Green and Blue combined.RedAdjust the Red channel.GreenAdjust the Green channel.BlueAdjust the Blue channel.NoteOnly Grayscale will be displayed in Channel when Color Mode is Grayscale.BrightnessAdjust the image brightness. Move (slider) under Brightness to the left to darken and right to brightenthe image. You can also enter a value (-127 to 127).Page 532 of 815 pagesAdjusting Brightness and Contrast