Epson 600 User Manual page 49

Advanced Scanning
Caution:
Changes made to a
tone curve affect the
image, so use caution
when adjusting tone
curves.
Curve Anchor
While the contrast control affects the extreme ends of
the curve, the Gradation Curve dialog box provides an
assortment of tools to control the entire range of tones.
To display an image's tone curves, click the tone curve
button . The Gradation Curves dialog box appears.
How To Use the Tone Curve
There are several ways to change the shape of a tone
curve:
Click & Drag As you move a curve anchor with
your mouse, the curve follows the
movement of the anchor.
To change a single anchor in the
curve without affecting the adjacent
anchors on the curve, "deactivate"
the adjacent anchors.
To deactivate an anchor, press and
hold the Alt key (on a PC) or the
Option key (on a Macintosh), then
click on the anchor.
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