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From: del@hpfcdq.UUCP
Newsgroups: comp.graphics
Subject: Re: Simple RGB to Gray scale question
Message-ID: <330006@hpfcdq.HP.COM>
Date: Thu, 26-Feb-87 14:29:21 EST
Article-I.D.: hpfcdq.330006
Posted: Thu Feb 26 14:29:21 1987
Date-Received: Mon, 2-Mar-87 05:56:14 EST
References: <718@hp-sdd.HP.COM>
Organization: Hewlett Packard, TWO
Lines: 5

The "standard" formula for RGB to intensity is

	intensity = 0.30*RED + 0.59*GREEN + 0.11*BLUE

Dave Larson