Canon MF4150 - ImageCLASS B/W Laser Driver Manual page 44

Introduction
1
Scanning a
Document 2
Troubleshooting
3
Appendix
4
Table of Contents
Index
[Channel] Select a color to adjust either [Red], [Green],
or [Blue], or select [Master] to adjust all three
colors together when [Color] or [Color
(Documents)] is selected in [Color Mode].
Adjust the elements of grayscale when
[Grayscale] is selected in [Color Mode].
(Black-point eyedropper tool)
Click this button, then click a point in the
preview image (or inside the focal crop) to
specify the darkest point. You can also enter
a value (0 to 245) or move the slider
an appropriate level.
(Mid-point eyedropper tool)
Click this button, then click a point in the
preview image (or inside the focal crop) to
specify the midtone point. You can also enter
a value (5 to 250) or move the slider
an appropriate level.
(White-point eyedropper tool)
Click this button, then click a point in the
preview image (or inside the focal crop) to
specify the highlighted point. You can also
enter a value (10 to 255) or move the slider
to an appropriate level.
(Gray Balance eyedropper tool)
[Reset]
to
to
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When adjusting a color image, click this
button, then click a point in the preview
image (or inside the focal crop) to specify the
point to execute gray balance adjustment.
The gray elements within a scanned image
will appear as a neutral gray, and other
elements within the image will also have true
color reproduction.
Resets all the current settings to their default
values.
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