automate unpurple?

William Allen (mailto:wallen@AZTEC.ASTATE.EDU)
Wed, 12 May 1999 12:51:27 -0500

Message-Id: <199905121758.KAA40076@dns.ccit.arizona.edu>
Date:         Wed, 12 May 1999 12:51:27 -0500
From: William Allen <mailto:wallen@AZTEC.ASTATE.EDU>
Subject:      automate unpurple?
To: mailto:IMAGELIB@LISTSERV.ARIZONA.EDU

My department is still in the early stages of digitizing its art slide
collection. We have a large number of older color slides that have turned
purple with age. Does anybody know of a set of defined functions in Adobe
PhotoShop5 to bring these images back to a semblance of their original
color? I guess I'm really asking, do we know what color(s) is lost (or
gained) in the aging process of the average 1950's Kodak slide. If we knew
that then it ought to be possible to set up a macro in PhotoShop to automate
the unpurpling process.

Thanks. wa

William Allen mailto:wallen@aztec.astate.edu http://www.clt.astate.edu/wallen