Xerox Travel Scanner 150
User’s Guide
150
Main Panel Options
Some of the options in this panel may have advanced adjustment options on a different panel in this section. When
the
Advanced
configuration mode is selected, a gear icon will appear next to those features which have adjustment
options. Clicking on one of the gear icons will open the area of the interface where the advanced settings are
located.
Click on a link below to go to the appropriate page in this section for instructions on adjusting the option that is
displayed on the
Main
tab.
See
Advanced Panel Options
on page 156
•
Despeckle
Brightness
Brightness
is the overall lightness of the image. Move the slider left or right to darken or lighten the image.
Adjusting the brightness level adjusts the tone of the pixels, without changing the true color of the pixels; such as
when adjusting hue.
Choosing brightness values
Adjusting the brightness level is based on how you want the image to appear and there is no standard to adhere to.
Below are some recommended options for brightness image correction based on the original document quality.
•
Original documents of good quality - 50%
•
Pencil written letters, forms, or drawings - 25% to 40%
•
Faded pictures or old documents with faded text - 35% to 45%
•
Light colored carbon copy paper, such as yellow or pale pink or pale green, with light text - 45% to 55%
•
Newspaper or magazine pages - 55% to 70%
•
Book pages - 55% to 80%
•
Pictures taken inside or in the shade - 60% to 85%
Brightness
works in conjunction with
Contrast
for image enhancement. When you are adjusting the brightness
level to improve the scanned image quality, try adjusting the contrast level as well. The contrast level is the range
between the lightest and darkest parts of the image. For example, if you scanned a document with notes written in
pencil, you may have to decrease the brightness level to get the handwritten notes to appear in the scanned image.
However, when decreasing the brightness, white starts to appear gray in the image. In that case, raise the contrast
level to make the differences between the lightest and darkest part of the image more defined.
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