Canon CanoScan FB 1200S User Manual - Page 45

To Edit the Tone Curve, In the Tone adjustment dialog box, click the tone curve tab.

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STEP 4 To Edit the Tone Curve In the Tone adjustment dialog box, click the tone curve tab. Change the tone curve in any direction to adjust its shape. You can adjust the setting for each channel: R (red), G (green), B (blue) or M (master). You can adjust each channels independently. (You can adjust RGB only for a color image.) To create a control point on the line, just click anywhere in the graph. After a control point is displayed in the line you can click to move it in any direction. As you move it to another location, the value changes. You can set several control points on the tone curve. To restore the tone curve default settings, click this [Reset] button. Shows the input and output level at the point under the pointer (control point) in the graph, expressed as a value from 0 to 255 where 0 is the darkest and 255 the lightest. [ I ] is for input and [O] is for output. If the output level is larger than the input level, this results in a lighter image. To restore all the default settings, click this [Reset] button. After adjusting the tone curve, you can save the setting to a file under a file name and load the file again whenever you want to use the settings. Click the OK button. The image in the preview window changes to reflect the new settings. Hint You can also open this dialog by opening the [Image] menu in the control panel and selecting [Tone adjustment]. 45 45

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To Edit the Tone Curve
In the Tone adjustment dialog box, click the tone curve tab.
Change the tone curve in any direction to adjust its shape.
Click the OK button.
The image in the preview window changes to reflect the new settings.
Hint
You can also open this dialog by opening the [Image] menu in the control panel
and selecting [Tone adjustment].
S T E P
4
You can adjust the setting for each
channel: R (red), G (green), B (blue)
or M (master). You can adjust each
channels independently. (You can
adjust RGB only for a color image.)
Shows the input and
output level at the
point under the pointer
(control point) in the
graph, expressed as a
value from 0 to 255
where 0 is the darkest
and 255 the lightest.
[ I ] is for input and [O]
is for output. If the
output level is larger
than the input level,
this results in a lighter
image.
To create a control point on the line, just click anywhere
in the graph. After a control point is displayed in the line
you can click to move it in any direction. As you move it
to another location, the value changes. You can set
several control points on the tone curve.
To restore the tone
curve default settings,
click this [Reset]
button.
To restore all the
default settings, click
this [Reset] button.
After adjusting the tone curve, you can save the setting
to a file under a file name and load the file again
whenever you want to use the settings.