Canon Pixma MP495 Series On-Screen Manual page 527

Adjusting Tone Curve
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Advanced Guide Scanning
ScanGear (Scanner Driver) > Adjusting Tone Curve
S306
Adjusting Tone Curve
In ScanGear (scanner driver)'s Advanced Mode tab, click
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.
Scanning with Other Application Software >
Correcting Images and Adjusting Colors with
(Tone Curve Settings).
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