How to Outline Images from Photos?

by parkpointer - 4/24/09 9:02 AM

I make posters for a group that I belong using either Apple iPages and/or MS Word for Mac. I would like to make a line drawings from photos or use some sort of filter that can create a line drawing or trace of the objects in the photos. My goal is to then add the various line drawings to these posters. Aside from the programs above, I also have iPhoto and Kodak camera software.
I've played around with some effects, but nothing I've found so far transfers the photo into a line drawing. Does anyone know if any of these programs can do this?