Path: utzoo!attcan!uunet!zaphod.mps.ohio-state.edu!ncar!gatech!wrdis01!nstn.ns.ca!clyde.concordia.ca!altitude!matrox!matrox.com!magrethea!danderso From: danderso@magrethea.matrox.com (Daniel Anderson) Newsgroups: comp.graphics Subject: Re: Dithering Message-ID: <1991Apr2.202325.17951@pandora.matrox.com> Date: 2 Apr 91 20:23:25 GMT References: <20865@gremlin.nrtc.northrop.com> Sender: news@pandora.matrox.com (Usenet Administration) Organization: Matrox Electronic Systems, Dorval, Quebec Lines: 24 In article <20865@gremlin.nrtc.northrop.com> dkb@nrtc.nrtc.northrop.com (David K. Bainbridge ) writes: >I've been looking for a good dithering algorithm, something that gives >a smoother output than a standard matrix dither. Iv'e heard about >something called the Floyd-Steinburg algorithm but have'nt been able >to find a description of it. If anybody knows about this algorithm, >or possible a better algorithm any pointer would be appreciated. > > >Thanks >David Look in Computer Graphics: Principles and Practice, second edition The Floyd-Steinberg is explained very simply, there is of course other algorithms for error diffusion, but you'll have to look in more specialized books (the ones that talk about halftoning). Sorry if i've got no references on those, my book was "burrowed" few months ago. ************************************************************** * * * If you're born a bun, don't try to make sandwiches * * for everybody * **************************************************************