Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!nrl-cmf!ames!necntc!dandelion!ulowell!hawk!dpelland
From: dpelland@hawk.ulowell.edu (David Pelland)
Newsgroups: comp.sys.amiga
Subject: Re: RGB to HSV Colors
Summary: Conversion formulas
Message-ID: <7271@swan.ulowell.edu>
Date: 27 May 88 19:52:02 GMT
References: <8805271453.AA13503@jade.berkeley.edu>
Sender: news@swan.ulowell.edu
Reply-To: dpelland@hawk.ulowell.edu (David Pelland)
Organization: University of Lowell, CS Dept.
Lines: 11

In article <8805271453.AA13503@jade.berkeley.edu> BBOURBIN@UMDD.BITNET (Brett S Bourbin) writes:
>Does anyone out there know of a formula for converting a RGB (red green blue)
>color value, into a HSV (hue saturation value) one?

H = cos^-1((1/2((R-G)+(R-G)))/(((R-G)^2+(R-B)(G-B))^(1/2)))

S = 1 - ((3*(min(RGB)))/I)

I = (R+B+G)/3

((good) (luck) (with) (the) (parenthesis))