Manual Epson expression 1680 pro (page 61 of 147) (English)

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Understanding EPSON TWAIN Pro Features 2-41

Note:

❏ The Tone Correction button is unavailable when one or more

marquees are selected in addition to the active marquee.

❏ The Linear setting is the default Tone Correction setting.

❏ The Tone Correction feature is not available when Pixel Depth is set

to Black & White, Halftone is set to None, and Text Enhancement

Technology is selected in the Image Type dialog box.

To save your Tone Correction settings, type a new name in the

Tone Curve Name box and click Save. To delete a setting from

the Tone Curve Name list, select the setting and click Delete.

To apply your Tone Correction settings, click OK. To restore the

original settings, click Cancel.

For further information on using Tone Correction to optimize

scanning, see “Making tone curve settings” on page 1-9.

Tone Curve editor

The editor allows you to customize tone correction. Drag points

on the tone curve to adjust the tone value. You can edit up to five

tonal elements.

Output options

If you select the check box for a specific point, such as 1/4 Tone

or Midtone, you can move that point and it will remain where you

leave it; it will not be affected by the movement of other points on

the curve. If the check box is cleared, the point will be affected by

the movement of other points.

Channels options

You can select the combined red, green, and blue (RGB) channel

to modify all colors, or select each of these colors separately.

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Epson expression 1680 pro Manual

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