Canon CanoScan D660U User Manual page 46

chapter 4
What is on the
Screen?
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Glossary
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Gamma (Scanner Gamma)
Drag the Gamma slider to the left or right to set the scanner gamma
value or you can type the value directly into the boxes. Entering a value
into either boxes of the scanner gamma or the monitor gamma will
display a respective value in the other box. The allowed range of values
are 0.10 to 10.00, inclusive. The shape of the tone curve changes to
reflect the current gamma setting for the current Channel, and the
image in the Preview Area changes to reflect the adjustment. When the
Scanner Gammma value is modified, the Monitor Gamma value changes
automatically.
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