Canon DR-S130 User Manual page 87

When you want to remove dots and notches that appear
in documents
You can remove dots and notches protruding from object outlines that
appear in documents from scanned images.
• Select the [Erase Dot] check box to automatically remove isolated
black dots (3 x 3 dot size) from white backgrounds (or white dots
from black backgrounds).
• Select the [Erase Notch] check box to remove notches that protrude
from object outlines in scanned images.
Click [Image processing] and select [ON] for [Erase Dot] or [Erase
Notch] in the dialog box that appears.
• When [ON] is selected for [Erase Dot], the isolated 3x3 black dots on
white backgrounds (or isolated 3x3 white dots on black
backgrounds) are erased automatically.
• When [ON] is selected for [Erase Notch], the portions (notches)
protruding outside the contours are erased from the scanned
images.
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