Canon IMAGE FORMULA DR-6010C - Manual (Page 110)

Chapter 7 ISIS/TWAIN Driver Settings
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[Gamma Settings] Dialog Box
Use the [Gamma Settings] dialog box to adjust the gamma correction value.
[Custom] Check Box
Select this check box to set custom gamma correction.
☞ When [Custom] gamma setting is selected, all settings on the [Brightness] tab sheet are made
automatically.
Select
Select the side and color for custom setting.
☞ The color bar and color of the sample image are changed to show the specified color.
Input method
Select the setting method for gamma correction.
[Factor]
Move the slider left or right to adjust gamma correction factor between 0.2 and 5.0.
☞ The gamma correction value, Gamma Curve Graph and sample image color are interlinked.
☞ Clicking at a point in the Gamma Curve Graph with your mouse changes the gamma curve and
color of the sample image to match that point.