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A-63055 December 1999 17
Image Emphasis
Image Emphasis allows you to adjust the softness or sharpness of
the scanned image. Choose one of the following image emphasis
levels: High, Medium, Low, None, and Smooth. The default is Medium.
Original Smooth High
Noise Reduction
Unwanted black speckles or splotches in a scanned document are
referred to as noise. Noise Reduction improves image clarity by
removing black spots, dust, or voids in white areas. Choose a noise
reduction level in the
Noise Reduction
drop-down list box. The default
is “None.”
The more noise in a scanned image, the larger the compressed file
size. Also, if images are being produced for an OCR system (a system
that can read text from an image produced by a scanner), too much
noise may lessen the reliability and read rate of the OCR system.
While choosing the larger matrix decreases large noise, commas (,) or
decimal points (.) may disappear as well.
Noise Reduction
is valid only
in Binary mode. Using
Noise Reduction
is not recommended when
using a
Dither
setting.
None Noise Reduction 4 x 4