Bell & Howell S02294A - Manual (Page 45)

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Image Scanner User's Manual
¡ Data compression unit
Using an optional data compression unit, it is possible to compress the scanned image data by
methods known as MH, MR, and MMR. This saves memory capacity.
¡ Video interface unit
The optional video interface unit provides a video interface connector.
¡ Image processing unit
The optional image processing unit adds the following image processing functions.
Dynamic threshold:
The scanned image is automatically binalized by an appropriate threshold. The scanner dis-
criminates a background color and decides the threshold to use.
Auto photo/letter:
The scanner automatically detects letter areas and photo areas of the original. The letter areas
are scanned in binary, and the photo areas are scanned in halftone.
Appendix
03_IS430-BODY 97.5.8, 5:37 PM Page 37 PageMaker 5.0J