Kodak 2500 - Manual (Page 16)

A-63055 December 1999 10
Brightness This function allows you to adjust the image brightness, making it
lighter or darker. There are two Brightness modes,
Automatic and
Manual , and three preset modes, Darken , Norm , and Lighten .
Select the Manual radio button in the Brightness group box. You can
adjust the brightness setting by dragging the Brightness sliding control
bar. Select a value from 1-255. The default is 128. The smaller the
number, the darker the image. You also can click on the
Darken , Norm ,
and Lighten buttons to adjust the brightness setting. Scan the
document and check the brightness.
•
Manual—allows you to increase or decrease the brightness
setting.
•
Automatic—sets brightness according to the scanning resolution.
NOTE: Refer to the section entitled “Binary Mode Automatic
Threshold” for information about setting automatic
brightness by Binary mode.
• Darken—sets a low brightness value (51), which is better for
scanning light originals.
•
Norm—sets an average brightness value (128).
•
Lighten—sets a high brightness value (205), which is better for
scanning dark originals.
Brightness 51 Brightness 128 Brightness 205
A darker setting is recommended for blurred character documents.
With a brighter setting, background noise in a color document
disappears.