Re: Custom color-separations in Photoshop?
That is an interesting use of the B&W app. I'll have to look into that. The reason why my original thought about custom separations is not feasible is that one cannot get any pure primaries - red, yellow, blue - from a pallette that uses purple, green and orange. I'm thinking that Hexachrome separations might be interesting. Or, use a custom POG seperation and then use spot channels to add the primaries where needed. On Sun, Jan 25, 2009 at 11:22 AM, Marek Matusz <marekmatusz@hotmail.com> wrote: > CS3 has this advanced B&W filer method tthat allows application of any color > filters to a B&W image. While I do not understand the math, or principles, I > use it occasionally to creat a spot color (say orange) negative. I wonder if > in principle it could be used to create orange/green purple negatives for > example. > Marek > >> Date: Sun, 25 Jan 2009 08:16:26 -0800 >> From: kthayer@pacifier.com >> Subject: Re: Custom color-separations in Photoshop? >> To: alt-photo-process-l@usask.ca >> >> 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. >> Katharine >> >> >> >> 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. >> > Alberto >> > >> > >> > > > ________________________________ > Windows Live™: E-mail. Chat. Share. Get more ways to connect. See how it > works.
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