Computer Graphics with Photoshop - adding colors RGB to CMYK

Author

adding colors RGB to CMYK

amade1974

2007-02-26, 6:14 pm

Hi all
as you are likely well aware, there are big differences in RGB vs
CMYK. This poses a problem for me/us (the people I work with). We
work with RGB images, and one of the nice things about them is that
you can add the G and the R to give you yellow, and as we have to
superimpose images containing only Green or Red, giving the areas that
co-localize a yellow tint of varying intensities. The problem we have
is that we want to recreate this in CMYK (as we have to do so based on
what publishers want). Is there a simple way of doing this?

thanks

Kurt

Mike Russell

2007-02-26, 6:14 pm

"amade1974" <kmusselmann@XXXXXXXXXX> wrote in message
news:1172501689.818507.275330@q2g2000cwa.googlegroups.com...
> Hi all
....
> We
> work with RGB images, and one of the nice things about them is that
> you can add the G and the R to give you yellow, and as we have to
> superimpose images containing only Green or Red, giving the areas that
> co-localize a yellow tint of varying intensities. The problem we have
> is that we want to recreate this in CMYK (as we have to do so based on
> what publishers want). Is there a simple way of doing this?

Can you do your superimposing in RGB, then use Photoshop to convert the
final image to CMYK?
--
Mike Russell
www.curvemeister.com/forum/

tacit

2007-02-26, 10:14 pm

In article <1172501689.818507.275330@q2g2000cwa.googlegroups.com>,
"amade1974" <kmusselmann@XXXXXXXXXX> wrote:

> as you are likely well aware, there are big differences in RGB vs
> CMYK. This poses a problem for me/us (the people I work with). We
> work with RGB images, and one of the nice things about them is that
> you can add the G and the R to give you yellow, and as we have to
> superimpose images containing only Green or Red, giving the areas that
> co-localize a yellow tint of varying intensities. The problem we have
> is that we want to recreate this in CMYK (as we have to do so based on
> what publishers want). Is there a simple way of doing this?

Do it in RGB, then convert the result to CMYK.

--
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http://www.xeromag.com/franklin.html