wanted: formula to convert HSB <-> RGB

Article View: comp.lang.postscript

Article #171

Back to comp.lang.postscript Previous Next

#171

From: Dan Kelley
Date: Sun, 02 Aug 1992 21:42

16 lines
1181 bytes

What is the formula used by PostScript (colorimage operator, and
others) to convert HSB into RGB and vice versa?  I have an application
that needs to do the translation.  I've found a formula in Foley + Van
Dam's book, but I need to be sure to get the same results as
PostScript does when it translates.

Any code out there?  (Or did I miss it in one of the PostScript
books?)  Email appreciated.

Thanks.

-- 
Dan Kelley, Oceanography Department   |  kelley@cs.dal.ca
Dalhousie University                  |  {uunet watmath}!dalcs!kelley
Halifax, Nova Scotia, CANADA, B3H 4J1 |  (902) 494-1694

Technical Details

Message-ID: <BsDLnC.406@cs.dal.ca>

Path:

arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!news.cs.indiana.edu!nstn.ns.ca!cs.dal.ca!open.dal.ca!kelley

Show Full Headers

Complete Article Headers

Newsgroups: comp.lang.postscript
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!news.cs.indiana.edu!nstn.ns.ca!cs.dal.ca!open.dal.ca!kelley
From: kelley@open.dal.ca (Dan Kelley)
Subject: wanted: formula to convert HSB <-> RGB
Message-ID: <BsDLnC.406@cs.dal.ca>
Summary: wanted: formula to convert HSB <-> RGB
Keywords: color
Sender: usenet@cs.dal.ca (USENET News)
Nntp-Posting-Host: open.dal.ca
Organization: OPEN, Dalhousie University, Halifax, NS, Canada
Distribution: na
Date: Sun, 2 Aug 1992 21:42:48 GMT
Lines: 16