Canon CanoScan N1240U User Manual page 41

chapter 3
What is on the
Screen?
Contents
Troubleshooting
Glossary
Index
Gamma button
Opens the Gamma sheet and allows you to shift mid-tones so lighter colors
are lightened and darker colors are darkened.
Histogram button
Opens the Histogram sheet and allows you to adjust tone intensity to
enhance an image that is either too light or too dark.
Special Tone Curves button
Opens the Special Tone Curves sheet and allows you to adjust the tones for
one or all of the three primary colors (RGB) by selecting a special tone curve
or editing a tone curve.
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