On Mon, Mar 21, 2011 at 5:30 PM, gespert...@gmail.com <gespert...@gmail.com> wrote: > Those operations are: > - Combining the alpha channel of the pure C, M, Y, K areas with the > corresponding separated channel via screen blending mode. > - Converting desired CMYK percentages to grayscale values and fill the > selection (the alpha of the area that should have a specific CMYK) > with the resulting values for each layer created by Separate+ > > The resulting file will be perfectly fine, but reaching that point is > tedious and several things can go wrong in the process. > So, what if the ideas of spot layers is applied to Separate+, using > naming conventions to define what to do with them?
This approach you outline would solve most of the use cases I have for CMYK (overprint, underlay (for dark substrate), one or more CMYK as spot/solid color, rich black). What I really miss from photoshop is the poorly-named "apply image" command. It basically allows you to combine any two channels using the available blending modes (Multiply, Screen, etc.). Right now, I have to do a lot of bouncing back and forth between layers, selections and channels. But that's probably well beyond the scope of what you're suggesting so I'll shut up now ;) Chris _______________________________________________ Gimp-developer mailing list Gimp-developer@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
