i've tried that plug in
August 12, 2012 - 21:04 — sya
i ever downloaded separate +, then install it to my gimp.. but it doesnt work..
when i open cmyk image, there is no any dialog box about separate,,,
what do you think then..??
What do I think.... When you are not sure about a plugin - location or if it is installed & working - use the Gimp Help -> Plugin Browser.
This is Gimp 2.8 & Linux but it is the same for Gimp 2.6
Some screenshots from the top
A cmyk image opened in Gimp It gets converted to RGB, it is just another image.
Alternative import the image using separate+ import plugin. It is in the menu File -> Create
This gets imported as a set of layers corresponding to CMYK
next using the separate+ plugin on a RGB image - the plugin is in the Image menu
You can separate into layers corresponding to the CMYK masks. Use the Proof option to preview and/or use the Export option to save. Both these have similar dialogs and this is where you need some rgb/cmyk profiles.
You will be better off asking questions in a forum such as meet-the-gimp for photgraphy or maybe Scribus if you are more into publishing.