Canon PIXMA MP280 On-Screen Manual - Page 520

Adjusting Tone Curve Page 520 of 707 pages Advanced Guide > Scanning > Scanning with Other Application Software > Correcting Images and Adjusting Colors with ScanGear (Scanner Driver) > Adjusting Tone Curve S306 Adjusting Tone Curve In ScanGear (scanner driver)'s Advanced Mode tab, click (Tone Curve Settings). Note 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. Note Only Grayscale will be displayed in Channel when Color Mode is Grayscale. Reading Tone Curves With ScanGear, scanning images via a scanner is the input, and displaying to a monitor is the output. "Tone Curve" shows the balance of tone input and output for each Channel.