Canon ScanGear CS-S 4.3 User Manual page 33

CONTENTS
GLOSSARY
INDEX
About the Tone Curve Window
The Tone Curve windows display more details about each tone setting. The
shape of the tone curve changes to reflect the current settings in the selected
channel. If Scan Mode is Color or Grayscale, and the Tone tab is selected,
Contrast/Brightness is the Tone feature selected and displayed, by default. The
curve is not directly editable unless the Special Tone Curves tool is active.
Selecting a Color Channel
If you are scanning a color image, you can change the contrast and brightness
of the individual red, green, and blue tones in your image.
The Channel list has the following options:
Master
Red
Green
Blue
If the menu is set to either red, green or blue, you see all three curves in the
curve box. The Channel list is disabled if the mode is not Color and the Tone
tab is not visible if you selected Black and White or Text Enhanced as your
scan mode.
For more information about how to use the color channels to adjust the
preview image, see the section,
"Scanning Techniques."
A combination of red, green, and blue.
Lets you adjust only the red tones in the image.
Lets you adjust only the green tones in the image.
Lets you adjust only the blue tones in the image.
"Enhancing Color Images"
Chapter 3
Scanning
in Chapter 5,
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