Canon imageclass mf4150 ユーザーガイド

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●  Histogram 

This dialog box enables you to see the data concentration at 
each brightness level in an image. 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]

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].

[Brightness]

Adjust the brightness of the image by 
moving the slider 

 or entering values 

(–127 to 127).

[Contrast]

Adjust the contrast of the image by moving 
the slider 

 or entering values (–127 to 

127).

[Reset]

Resets all the current settings to their default 
values.