U of S | Mailing List Archive | alt-photo-process-l | Re: Custom color-separations in Photoshop?

Re: Custom color-separations in Photoshop?

For Color separation for gum, i use PhiLou Software


----- Original Message ----- From: "Katharine Thayer" <kthayer@pacifier.com>
To: <alt-photo-process-l@usask.ca>
Sent: Sunday, January 25, 2009 5:16 PM
Subject: Re: Custom color-separations in Photoshop?

Thanks, Alberto. After I sent that first post, it occurred to me that maybe I'd bookmarked the page, and sure enough there it was in my bookmarks. Anyway, I don't think anyone talking about using spot channels to achieve Keith's goal is supposing it could be an automatic process like default Photoshop CMYK separations; Keith is right that Photoshop won't do that. But it is a way to use Photoshop to get the separations of secondary colors that he wanted.

On Jan 24, 2009, at 11:54 PM, Alberto Novo wrote:

Oh, for heavens' sake, it was Alberto Novo. I should have remembered that, sorry Alberto. Anyway, here's the page: http:// www.grupponamias.com/index_en.html?http://www.grupponamias.com/ art_101_en.html

Never mind, Katherine. I live in a different time zone, so usually I can't chime in at once.
I would add that I don't believe that my process could become an atomatic one, though it is possible to make a Photoshop action. The reason is that the colors are not primary (I like to call them oblique, opposed to orthogonal, because they are not complemetary, and they are not the resultant of a rigid rotation of the axes), and they vary from picture to picture because of the complexity of the scene and the personal choices of the operator.

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