We help IT Professionals succeed at work.

Adjusting CMYK % for printing

JoeRM
JoeRM asked
on
920 Views
Last Modified: 2012-08-13
I've been asked to adjust the CMYK levels to a few jpegs so that they match the following percentages:

C - 60%
M - 40%
Y - 10%
K - 100%

Obviously, the blacks wouldn't change. What I'm wondering, though, is how to affect the changes to the image. It's in the CMYK format but I can't find a way to adjust the different channels individually. I've looked up many different subjects, such as how to adjust the color separation as well as changing the color settings (Edit > Color Settings).

I think they may be asking me to do something using the wrong terminology. Any help would be appreciated!
Comment
Watch Question

Commented:
  1. Photoshop - Three step process
  2. Image>Mode>CMYK
  3. Select the area of the image that you would like to change color using whatever tool you are comfortable with
  4. Edit>Fill>Color>Enter new cmyk value
This one is on us!
(Get your first solution completely free - no credit card required)
UNLOCK SOLUTION
CERTIFIED EXPERT

Commented:
How you do this all depends on the subject matter of the image. If it is a line drawing with separate areas of black, then vanwraps is exactly correct.

When you say "obviously" the blacks won't change" you are correct that they won't change on your monitor, but they will show up on a printed image. In the world of printing, there are many different colors of "black" There are warm blacks, cool blacks, dense blacks and thin blacks and everything in between.

If, however, you have a continuous tone image such as a photograph, adjusting just the black areas is a bit more problematic and you may need a little extra guidance.

Vanwaps guidance is still correct, there's just some extra steps that you might want to take.
CERTIFIED EXPERT

Commented:
Ah... Mr. Superb has jumped ahead and anticipated the next step while I was still typing.
It looks like you are in good hands, so I'll just sit over here in the corner until needed.
Unlock the solution to this question.
Join our community and discover your potential

Experts Exchange is the only place where you can interact directly with leading experts in the technology field. Become a member today and access the collective knowledge of thousands of technology experts.

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.