Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!tut.cis.ohio-state.edu!ucbvax!hplabs!hp-pcd!hpcvlx!markc From: markc@hpcvlx.cv.hp.com (Mark Cook) Newsgroups: comp.graphics Subject: Need Floyd-Steinberg dither example Message-ID: <101880016@hpcvlx.cv.hp.com> Date: 8 Dec 89 01:29:26 GMT Organization: St. Vitus Hospital for the Terminally Amused Lines: 20 Well, this time, it's an example of the Floyd-Steinberg error diffusion algorithm. I'm trying to convert 8-bit pseudo-color images into dithered black and white images, suitable for output on a laser printer. Any references/pointers are greatly appreciated. Regards, Mark F. Cook USMail: User Interface Technical Support Hewlett-Packard - Corvallis Information Systems 1000 NE Circle Blvd. Corvallis, OR 97330 ARPA: markc%hpcvss@hplabs.HP.COM UUCP: {cmcl2, harpo, hplabs, rice, tektronix}!hp-pcd!hpcvss!markc P.S. I've already got a copy of "Digital Halftoning" by Robert Ulichney, but since I have no experience with Fourier Transforms, I'm not having much luck in extracting enough information to generate a subroutine that works.