3-24
Understanding EPSON TWAIN Features
Click the
Tone Correction
button on the Manual mode window
to view the following dialog box.
Note:
❏
The default setting is the Linear.
❏
The Tone Correction button appears dimmed and is not available
when Pixel Depth is set to
Black & White
and Halftone is set to
None
, or B/W Option is set to
Text Enhancement
Technology
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.
Summary of Contents for 1640SU - Perfection Photo Scanner
Page 2: ... 2 ...
Page 44: ...2 20 Scanning Basics High Contrast Increases the contrast of dull images Open Shadow ...
Page 54: ...2 30 Scanning Basics ...
Page 98: ...4 10 Calibrating Your System ...
Page 114: ...5 16 Options Paper support Spare paper path guide ADF Document Mat ...
Page 130: ...5 32 Options ...
Page 172: ...6 42 Maintenance and Troubleshooting ...
Page 185: ...Contacting Customer Support B 1 Appendix B Contacting Customer Support Overview B 2 ...
Page 192: ... 6 Glossary ...