Avision FL-1313B User Manual page 91

D e spe ck le
Occasionally sm all dot s or specks appear in t he background of
a scanned im age. Rem ove unwant ed speckles provides a
cleaner im age for OCR ( Opt ical Charact er Recognit ion)
processing, and also helps t o reduce com pressed file size.
Define t he speckles ( also known as im age noise) you wish t o
rem ove by specifying it s num ber ( size) and radius ( range) . The
m easuring unit is pixel. The higher t he num ber, t he m ore
speckles will be rem oved.
N ot e :

The funct ion is current ly available for Black and Whit e
im age only.

To scan at rat ed speed, it is recom m ended t o set t he
noise radius up t o 10 pixels.
Before Despeckle
( noise num ber: 0, noise radius: 1)
Aft er Despeckle
( noise num ber: 22, noise radius: 10)
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Use r 's M a n u a l