Re: [Gimp-user] Blueprint Style Effects?

[Ofnuts <ofnuts laposte net>]

On 29/10/14 14:54, Garyfx wrote:
> I'm new to GIMP and need to create an effect from existing JPG images that look
> like a simple blueprint of the image objects.  Specifically large trailers used
> for hauling race cars.  The effect I'm after is not unlike the one on the
> background of the gimpusers website.  Anyone know how to achieve this?  I've
> attached an example of the effects here.
> Thanks!
>
> Attachments:
> * http://www.gimpusers.com/system/attachments/163/original/Trailer_CADS.gif

You mean just exchanging colors?