Path: utzoo!attcan!uunet!lll-winken!lll-lcc!ames!mailrus!tut.cis.ohio-state.edu!rutgers!sri-unix!dbeck From: dbeck@unix.SRI.COM (Douglas K. Beck) Newsgroups: comp.graphics Subject: Re: Floyd-Steinberg Errors: What do I do with them? Message-ID: <19404@sri-unix.SRI.COM> Date: 16 Jul 88 18:38:19 GMT References: <6506@well.UUCP> <13172@jumbo.dec.com> <252@versatc.UUCP> Reply-To: dbeck@unix.sri.com (Douglas K. Beck) Organization: SRI, Menlo Park, CA. Lines: 6 There is a later paper by Ulnichy that describes methods for modifying the FS dither, using a random perturbation of the threshold for each pixel, and distributing the error on a randomized basis between the next adjacent pixel and the pixel directly beneath the object pixel. It gives smoother looking images, albeit noisy than any other implementation of the FS scheme that I have tried. ...doug beck dbeck@unix.sri.com