Epson Expression 1680 User Manual download pdf (Page 18)

1-10 Optimizing Scanning

To change the tone curve back to its default, select Linear from the

Tone Curve Name list.

To add your settings to the Tone Curve Name list, type a name

for the settings in the list, then click Save.

Output values

These are the current values for output data in accordance with

the current locations of the points inside the tone curve editor.

These values change when you drag points in the tone curve

editor, or you can enter in values here to change the shape of the

tone curve. Each value can be adjusted within a range of 0 to 255.

Note:

❏ Each output value name has a check box to the left of it. Highlight

and Shadow are always selected, but you can select or clear 1/4

Tone, Midtone, and 3/4 Tone by clicking their check boxes.

❏ When a value’s check box is clear, its point on the tone curve editor

automatically shifts to smooth out the tone curve when one of the

other points is moved.

❏ When a value’s check box is selected, it means that its point is fixed

and it will not shift when other points are moved.

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Epson Expression 1680 User Manual Page 18