Xerox Documate 765 Guide de l'utilisateur télécharger pdf (Page 90)

DocuMate 765 Scanner User’s Guide 83

Scanning from ISIS

Image Processing Options

The Main tab has the basic features you need for image capture when

scanning. The basic settings include color mode, resolution (dpi),

brightness, contrast, and dither options. The options on the Image

Processing tab are advanced image capture options for improving the

quality of the scanned image, or just modifications such as removing

watermarks.

Extra Features—the options in this section will be enabled if the

scanning software supports the feature.

• White Level From Paper—this option uses white as the reference

color when the documents being scanned are on colored paper.

When colored paper is scanned, the resulting image may be filled

with a lot of noise and the image quality will be poor.

This option will not work properly if the paper being scanned has

multiple background colors on each page, or if the color intensity

varies across the page.

This option will be disabled if you are scanning in Color Mode, or you

have selected the options for AutoCrop, Deskew or Margin.

• Automatic Separation—this option enables the scanner to

automatically differentiate between text areas and photo areas on a

page. Text areas are scanned in Binary (Black and White) mode,

while the photo areas are scanned using the Dither (halftone) pattern.

In some cases, it may not be possible to separate the text and images

completely using this automatic feature. If you often scan documents

where the image area is always at the same part of the page you can

get better results by creating a Sub Area. Please see “Page Layout

Sub Area” on page 77 for more information.

The Automatic Separation option is only available in Black and White

color mode. This feature will automatically be disabled if Noise

Reduction, Sub Area, Dynamic Threshold, Automatic Crop or

Deskew are enabled.

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Xerox Documate 765 Guide de l'utilisateur Page 90