Article View: sci.physics
Article #7558Re: Color questions
From: falk
Date: Sat, 06 Jun 1987 19:54
Date: Sat, 06 Jun 1987 19:54
17 lines
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1378 bytes
In article <93@eps2.UUCP>, jon@eps2.UUCP (Jonathan Hue) writes: > > No, Rahul is correct. What you see in magazines usually begins as > continuous tone art (photographs or transparencies) and are then > scanned with a Hell or Crosfield laser scanner to produce four > color separations (cyan, magenta, yellow and black) which look like > pieces of black and white transparency film with halftone dots on > them. Here's a related question, does anybody know the conversion factors to map colors in Red-Green-Blue space to Cyan-Yellow-Magenta-Black? What I would like to do is generate four images on a high-res laser printer that can be used directly for printing; i.e. do the seperation in software. -ed falk, falk@sun.com, sun!falk
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!rutgers!ames!oliveb!sun!falk From: falk@sun.UUCP Newsgroups: sci.physics,comp.graphics,comp.sys.ibm.pc Subject: Re: Color questions Message-ID: <20537@sun.uucp> Date: Sat, 6-Jun-87 15:54:14 EDT Article-I.D.: sun.20537 Posted: Sat Jun 6 15:54:14 1987 Date-Received: Sun, 7-Jun-87 10:24:22 EDT References: <1937@druhi.ATT.COM> <725@bsu-cs.UUCP> <6861@mimsy.UUCP> <93@eps2.UUCP> Distribution: comp Organization: Sun Microsystems, Inc. - Mtn View, CA Lines: 17 Summary: does anybody know how to convert RGB->CYMB?