Visioneer 9420 Manuel d'utilisateur télécharger pdf (Page 90)

86 VISIONEER ONETOUCH 9420 USB SCANNER USER’S GUIDE

3. Click Reset to return the resolution to its original setting.

The resolution panel also includes an advanced setting for Moire

patterns. Moire patterns are wavy, rippled lines that sometimes appear

on the scanned images of photographs or illustrations, particularly

newspaper and magazine illustrations. To scan the image and limit or

eliminate moire patterns, select the Reduce Moire option.

ADJUSTING THE BRIGHTNESS AND CONTRAST

Sometimes an item is scanned with the brightness and contrast set to be

too light or too dark. For example, a note written with a light pencil

may need to be scanned darker to improve legibility.

The following ﬁgure shows the brightness and contrast options.

Contrast is only available for Color and Gray Scale conﬁgurations.

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Visioneer 9420 Manuel d'utilisateur Page 90