Scanning
50 DocuMate 250 Scanner User’s Guide
• Invert Image—Only available for Black&White Mode, this
option reverses the black and whites of an image.
• Color Filter—Color filter is the ability of your scanner to
automatically remove a color from a scanned item. For
example, if you are scanning a letter with a red watermark,
you can choose to filter out the red so the scanned letter
just shows the text and not the red watermark. Color filter
applies to Black&White or GrayScale Mode.
8. Click the Advanced Settings tab.
The options of the Advanced Settings tab are for the Color or
GrayScale scanning mode.
Saturation is the strength or purity of a color, hue is the color
your eyes see as reflected from the image, and gamma
controls the brightness of the midtones of the color.
Original Image. Inverted Image.
The original with a red
watermark over black text.
The scanned item with the
red filtered out.
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