57
V
ISIONEER
P
HOTO
P
ORT
7700 USB S
CANNER
I
NSTALLATION
G
UIDE
To adjust the resolution and sharpness:
1. To use one of the preset resolutions for typical scanned items, click
one of the options in the list.
For example, to set the resolution for scanning a business card,
select Business Card (OCR). That setting is sufficient for your
optical character recognition (OCR) application to read the small
print on a business card.
2. To set the resolution manually, drag the Resolution slider to the left
to decrease the resolution or to the right to increase it.
3. To adjust the sharpness, drag the Fidelity slider to the left to
decrease the sharpness or to the right to increase the sharpness.
You can also type a number directly into the sharpness setting box,
or click the up and down arrows next to the box to increase or
decrease the setting.
To return the settings to their original amounts, click Reset.
4. If you expect items to have moire patterns when scanned, click
Reduce Moire to scan the image and limit or eliminate the amount
of the moire patterns.
Moire patterns are wavy, rippled lines that sometimes appear on the
scanned images of photographs or illustrations, particularly
newspaper and magazine illustrations.
A
DJUSTING
THE
B
RIGHTNESS
AND
C
ONTRAST
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.
