Canon imagePROGRAF GP-4000 Online Manual page 602

drag the slider toward the right and darker as you drag the slider toward the left. You can also directly
enter brightness values that are linked to the slider bar. Enter a value in the range from -50 to 50.
Contrast
The Contrast function changes the differences between light and dark in images during printing.
To make the differences between the light and dark portions of images greater and more distinct,
increase the contrast. On the other hand, to make the differences between the light and dark portions of
images smaller and less distinct, reduce the contrast.
You can also directly enter a value linked to the slider. Enter a value in the range from -50 to 50.
Related Topics
Specifying Color Correction
Adjusting Color Balance
Adjusting Brightness
Adjusting Contrast
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