Canon DR-9080C Service Manual page 57

3) Gamma correction
This is used when data conversion other
than brightness and contrast adjustments is
required.
It is possible for the user to use a custom
conversion table for converting the gamma of the
original image data. In this case, the brightness
and contrast adjustments become invalid.
White
(255)
YH
Y0
YL
Black
(0)
Before conversion
Fig. 2-508
COPYRIGHT © 2003 CANON ELECTRONICS INC.
(+)
(-)
X0
White
(255)
CANON DR-6080/9080C REV.0 SEPT. 2003
CHAPTER 2 FUNCTIONS & OPERATION
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