Xerox DocuMate 3220 Benutzerhandbuch Seite 172

Technical note:
Most monitors have a gamma setting that is user adjustable. When viewing scanned images on-screen,
versus printing the image, the gamma setting of the monitor may affect how light or dark the scanned
image looks when compared to the original. If the scanned image is too different from the original
image, or if adjusting the scanned gamma level does not modify the image how you want, try
adjusting the monitor's gamma level. Refer to the monitor's user guide for adjusting the gamma level
and see if the manufacturer has any recommended settings.
Invert Image
The option reverses the color of each pixel in the scanned image.
Invert image
When scanning in black and white, each pixel is reversed from black to white and white to black. When
scanning in grayscale each pixel is reversed to the opposite level of gray. When scanning in color each
pixel is reversed to the opposite color in the color wheel.
For example, you might choose this option if you are scanning pages that have been printed from
newspaper microfilm. Newspaper microfilm reverses black and white so that when viewed on a
monitor, the text is white and the paper is black.
The following example shows the original grayscale image and the inverted image.
The following example shows the original color image and the inverted image.
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Xerox ® DocuMate
User's Guide
® 3220