• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Managing Merge Colors in Photoshop
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Managing Merge Colors in Photoshop


  • Subject: Managing Merge Colors in Photoshop
  • From: Roger Breton <email@hidden>
  • Date: Wed, 01 Dec 2004 08:21:40 -0500

Suppose you have a CMYK image with four PMS spot color channels. Suppose the
CMYK channels were blank and suppose you issue the Merge Spot Channels in
the Channels palette after shift-selecting the four spot channels. Is there
any way to predict what the final converted CMYK colors will be?

I tried figuring the algorithm yesterday and I could not do it. Photoshop
must be doing some kind of blends in Lab, internally, between each spot
channels Lab values but there is nothing anywhere that I noticed that says
how these colors relate to the CMYK Working space? And the gamut mapping
that must be going on between the two.

The reason I ask is because, invariably, the results are much desaturated
compared to the pure PMS spot colors definition. I think I understand why I
am getting the colors I am getting but I'd like to understand the process a
little better.

Regards,

Roger Breton  |  Laval, Canada  |  email@hidden
http://pages.infinit.net/graxx


 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Colorsync-users mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

  • Follow-Ups:
    • Re: Managing Merge Colors in Photoshop
      • From: Ray Maxwell <email@hidden>
  • Prev by Date: Re: Optimum Consistent illumination.....????
  • Next by Date: Re: CMYK TC9.18?
  • Previous by thread: Re: Optimum Consistent illumination.....????
  • Next by thread: Re: Managing Merge Colors in Photoshop
  • Index(es):
    • Date
    • Thread