Bell & Howell S02294A - Manual (Page 38)

Image Scanner User's Manual
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Original
¡ Auto photo/letter
Function: This mode detects photo (halftone) areas and letter (binary) areas of the original so
that the binary areas are scanned in the binary mode, and the halftone areas are
scanned in the halftone mode.
Note: This function is available only when the optional image processing unit is installed in
the scanner.
If binary areas and halftone areas are not separated clearly, segmentation may not
be achieved .
Usage: Scanning of an original that includes binary images such as letters, and halftone
images such as photographs.
Scanned image
Scanned in binary
composition
Scanned in half-
tone composition
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