Visioneer Strobe XP 470 User's Guide download pdf (Page 67)

60 VISIONEER STROBE XP 470 SCANNER USER’S GUIDE

■ GrayScale to scan items such as documents containing drawings

or black and white photographs. The scanning produces an image

of up to 256 shades of gray.

■ Color to scan color photographs and other color items. Color

scans have the largest file size.

Resolution—Drag the slider to the right or left to adjust the dots

per inch (dpi) of the resolution. The maximum resolution is 600

dpi; the minimum is 50 dpi. The higher the dpi setting, the

sharper and clearer the scanned image. However, higher dpi

settings take longer to scan and produce larger files for the scanned

images.

Brightness and Contrast—Sometimes an item is scanned with

the brightness and contrast set too light or too dark. For example,

a note written with a light pencil may need to be scanned darker to

improve legibility.

Brightness refers to the lightness or darkness of the image.

Contrast is the range between the darkest and lightest portions of

the image. The greater the contrast, the more difference between

the lighter and darker shades in the image.

Drag the sliders to the right or left to adjust the brightness and

contrast of the scanned image. The Contrast setting does not

apply to the Black&White mode.

6. If you want to lock the configuration, click the lock icon to change

it from a key to a lock.

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Visioneer Strobe XP 470 User's Guide Page 67