Canon i-SENSYS MF6140dn User Manual page 458

[Channel]
[Brightness]
[Contrast]
[Reset]
Histogram
You can check how much data clusters at which level of the brightness. You can specify the darkest and brightest levels
within an image, cut the levels and expand the middle of the tonal range of the image.
[Channel]
[ ] (Black-point
eyedropper tool)
[ ] (Mid-point
eyedropper tool)
[ ] (White-point
eyedropper tool)
[ ] (Gray
Balance eyedropper
tool)
[Reset]
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Select a color to adjust either [Red], [Green], or [Blue], or select [Master] to adjust all three
colors together when [Color] is selected in [Color Mode].
When [Grayscale] is selected in [Color Mode], adjust gray color.
Adjust the brightness by moving [
127.
Adjust the contrast by moving [
127.
Resets all the current settings to their default values.
Select a color to adjust either [Red], [Green], or [Blue], or select [Master] to adjust all three
colors together when [Color] is selected in [Color Mode].
When [Grayscale] is selected in [Color Mode], adjust gray color.
Click this button and specify an area which you want to darken the most by clicking in the
preview image (or the selected cropping area). You can also manually enter a value from 0 up
to 245 or move [ ] on the slider.
Click this button and specify an area where you want to make halftone by clicking in the
preview image (or the selected cropping area). You can also manually enter a value from 5 up
to 250 or move [ ] on the slider.
Click this button and specify an area which you want to lighten the most by clicking in the
preview image (or the selected cropping area). You can also manually enter a value from 10 up
to 255 or move [ ] on the slider.
To adjust color images, click this button and specify a point at which gray balance is adjusted
by clicking in the preview image (or the selected cropping area). The gray color in the scanned
image becomes halftone, and other colors are reproduced in their original colors.
Resets all the current settings to their default values.
] on the slider or manually entering values from -127 up to
] on the slider or manually entering values from -127 up to