Path: utzoo!utgpu!attcan!uunet!oddjob!ncar!ames!oliveb!sun!Ellen_Sangster@mtsg.ubc.ca
From: Ellen_Sangster@mtsg.ubc.ca
Newsgroups: comp.text.desktop
Subject: Document Scanners
Message-ID: <61931@sun.uucp>
Date: 28 Jul 88 22:52:04 GMT
Sender: news@sun.uucp
Distribution: comp
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Approved: desktop-request%plaid@sun.com


    Over the past couple of months I have had a chance to work
with an Abaton 300 sheet-feed scanner and its associated image
processing software C-Scan (on the Macintosh).  [As an aside, I
would recommend a flat-bed scanner over a sheet-feed model for
ease of use in obtaining straight scans, and scanning from books.]
    C-Scan version 1.5 does not do gray scale scanning, only line art
and halftones. Version 1.6 does do gray scale scanning with 16 levels
of gray.  Both versions allow you to do some image manipulation (like
painting, erasing, selecting areas, pasting transparently, etc.)
    I did several kinds of scans and output them to both a NEC
Silentwriter (a Postscript laser printer) and a Linotron 100
typesetter.  On the plain paper printer, only the line art scans
would be acceptable publication quality for books or magazines.
The photo scans may be acceptable for flyers or newsletters,
depending on your standards.
   On the typesetter, gray scale scans were just acceptable for books.
Using software with more gray levels (e.g. 64) would produce
superior results, although the files would probably be much larger.
     There was a good review of several scanners in the July 88
issue of MACazine, covering both the hardware and software.
     I have several extra handouts left from a demo I gave a
couple of weeks ago (these are actual laser printer output from
scanned images imported into PageMaker ver. 2).  If anyone wants
one, send your name and address either to:
   Ellen Sangster
   Computing Services
   Simon Fraser University
   Burnaby, B.C.  CANADA  V5A 1S6
or via BITNET, EARN or NetNorth electronic mail to
   USERELLE@SFU
 
 
 

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