[Gimp-user] Blueprint Style Effects?

[Garyfx <forums gimpusers com>]

> You mean just exchanging colors?
Well, I may have not been as articulate as I could have.  I want to take JPG
images of trailers and turn them into line schematics or outlines.  I want just
the line drawing or frame of the trailers like the images I attached in my
original message.

And... a simple grey background is sufficient.

Thanks

-- 
Garyfx (via www.gimpusers.com/forums)