Epson ES-800C, Руководство пользователя

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Halftoning and dropout
For nearly all uses, none is the best setting for these. In case
you have special needs that require halftoning at the time of
scanning, see the Appendix for technical information on
halftoning, dithering, and dropout on the ES-8OOC.
Brightness
The minus numbers lighten the image, the plus numbers
darken the image. To lighten a dark original use -1 to -3, or to
darken a light original use +1 to +3. Usually you should leave
this setting at zero.
Co
l
or correction
Use the default or CRT display.
Gamma correction
Use the default or CRT Display B.
Cropping
If you know you are going to use only part of an original, use
your software’s cropping tools before you scan (if possible) to
select only the part of the image that you will use. This will
make your image file smaller.
3-12 Scanner Basics