U of S | Mailing List Archive | alt-photo-process-l | Gum Separations Using Indexed Color

Gum Separations Using Indexed Color

  • To: alt-photo-process-l@usask.ca
  • Subject: Gum Separations Using Indexed Color
  • From: Michael Koch-Schulte <mkochsch@shaw.ca>
  • Date: Wed, 24 Dec 2008 09:11:22 -0600
  • Comments: "alt-photo-process mailing list"
  • Delivered-to: alt-photo-process-l-archive@www.usask.ca
  • List-id: alt-photo-process mailing list <alt-photo-process-l@sask.usask.ca>
  • Reply-to: alt-photo-process-l@usask.ca
  • User-agent: Thunderbird 2.0.0.18 (Windows/20081105)
Has anyone experimented with using Photoshop's "Indexed Color" function to produce colour separations for Gum Bichromate? Or, mixed Indexed Color with CMY(K) separations? Seems someone (Keith Gerling maybe?) was doing something similar with adding extra channels to print pure colours. Indexed Color would allow one to use opaque inks. I'm going to give this a try over the holidays but would like to hear experiences from anyone who has done advanced colour separation techniques. Thx. Merry Christmas.
~m