Hi

Thanks to both of you for your posts. I will try them out soonest! The background started out life as a bitmap, but I've converted it to vector, mainly so that I could use the smoothing functions.

Thanks again

Nick

PS Just tried it and it works! The results are fantastic!

Hi I have a background, which comprises yellow and black regions only, effectively creating a monochrome image. On top of this I want to superimpose a circular outline. I want the outline colour to be the inverse of the background - i.e. as the line crosses yellow background it should be black and v...