Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!ucsd!ucbvax!ciba-geigy.ch!deyrau
From: deyrau@ciba-geigy.ch (Dipl agr Veronique Eyraud)
Newsgroups: comp.sys.sgi
Subject: Black/White inversion of rgb img
Message-ID: <9008171428.AA12867@focci01.wirz.cigy>
Date: 17 Aug 90 16:31:17 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 7
X-Unparsable-Date: Fri, 17 Aug 90 16:28:29 DST


Is there a command somewhere in /usr/sbin allowing to invert the
black and white of a rgb image, and thouse only?
(The invert command, as one can expect, takes all the complementary colors
of the image)

Thanks,