Operation Manual
2-34 Understanding EPSON TWAIN Pro Features
❏ The Tone Correction button appears dimmed and is not available
when Pixel Depth is set to Black & White, Halftone is set to None,
and TET (Text Enhancement Technology) is selected in the Image
Type dialog box.
❏ You can see the effects of the Tone Correction settings in the Preview
window.
The tone value represents the contrast in the tonal relationship
between an original image and its reproduction on a monitor or
printer.
Tone Curve Name list:
Select a tone correction setting from this list. The custom
settings you have saved appear in this list.
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 these colors separately.