Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!julius.cs.uiuc.edu!apple!netcom!allanh
From: allanh@netcom.UUCP (Allan N. Hessenflow)
Newsgroups: comp.graphics
Subject: dithering
Keywords: grayscale to black&white
Message-ID: <13919@netcom.UUCP>
Date: 26 Sep 90 23:08:03 GMT
Organization: Netcom- The Bay Area's Public Access Unix System {408 241-9760 guest}
Lines: 15

I'm looking for any references on dithering algorithms that work for an output
device with higher addressable resolution than dot-size.  Specifically, the
dots are round and larger than 1/300 inch in diameter.  The addressable
resolution is 300dpi vertically, and several times that horizontally.

I can pretend the dots are square with 1/300 inch sides and only use 1/300 inch
horizontal resolution with reasonable results, although they aren't very linear
because adjacent dots overlap.  I'm hoping to find a method which can take
advantage of the high horizontal resolution and deal with the fact that the
dots overlap.

allan

-- 
Allan N. Hessenflow   {apple|claris}!netcom!allanh    allanh@netcom.uucp