Article View: comp.sys.mac
Article #4621Re: smoothing bitmap graphics
From: Jeff Hallett x5163
Date: Fri, 15 Sep 1989 16:07
Date: Fri, 15 Sep 1989 16:07
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In article <1989Sep14.163312.17575@paris.ics.uci.edu> Michael Pazzani <pazzani@ics.uci.edu> writes:
>The Apple LaserWriter has a facility to "smooth" bitmap graphics does
>a pretty good job of making 72dpi bitmaps look acceptable when printed at
>300dpi. Does anyone know if these facilities can be accessed
>directly from postscript? I have a large number of bitmaps (from
>a Symbolics Lisp Machine) that are printed using the postscript
>"imagemask" procedure. I'd love to find a way to make them print
>on a laserwriter with the same quality as images produced by MacPaint.
Well, this might be quite a problem. The smoothing that occurs for
bitmaps is Apple-proprietary code and sits in the LaserPrep file as a
binary executable. (This is why a lot of places have a problem
uploading and printing with this beastie.)
The best bet for you would be to find a way to convert the bitmap to
PostScript. You may find that the bitmap gets reduced in scale to
match the LaserWriter quality, but that will look better anyway.
There are a number of routines to convert bitmaps to PostScript (and
many other things too). The trick is getting the Symbolics files into
one of those formats.
--
Jeffrey A. Hallett, PET Software Engineering
GE Medical Systems, W641, PO Box 414
Milwaukee, WI 53201
(414) 548-5163 : EMAIL - hallett@gemed.ge.com
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!csd4.csd.uwm.edu!mrsvr.UUCP!pet3.uucp!hallett From: hallett@pet3.uucp (Jeff Hallett x5163 ) Newsgroups: comp.sys.mac Subject: Re: smoothing bitmap graphics Message-ID: <1018@mrsvr.UUCP> Date: 15 Sep 89 16:07:12 GMT References: <119@ark1.nswc.navy.mil> <1449@intercon.com> <124647@sun.Eng.Sun.COM> <1989Sep14.163312.17575@paris.ics.uci.edu> Sender: news@mrsvr.UUCP Reply-To: hallett@gemed.ge.com (Jeffrey A. Hallett (414) 548-5163) Organization: GE Medical Systems, Milwaukee, WI Lines: 26