Path: utzoo!mnetor!uunet!husc6!bloom-beacon!gatech!purdue!decwrl!ucbvax!MITRE.ARPA!mcgurrin
From: mcgurrin@MITRE.ARPA
Newsgroups: comp.sys.apple
Subject: Re: gif pictures
Message-ID: <8805061839.AA15111@mitre.arpa>
Date: 6 May 88 18:39:31 GMT
References: <8805052332.aa11313@SMOKE.BRL.ARPA>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The MITRE Corp., Washington, D.C.
Lines: 8

I don't know how to let a GS read a Mac disk, but if you have access to a Mac,
the Apple File Exchange utility will read Mac files and write to a ProDOS
disk.  I have used this to transfer MacPaint files over, then use SHRConvert
to read, display, and convert to GS format.  Good results, but interesting.
Since the vertical resolution is lower on the GS, but more colors (it's
hard to have fewer colors than black and white), SHRConvert apparently 
averages the values of Mac pixels, since the resulting 640 mode picture on 
the GS had black, white, and 2 shades of grey.