Someone pointed me in the direction of a Patchwork Pattern maker at the Victoria and Albert Museum site. It can take a photo and turn it into a gridded design for half square trinagles and full squares. its an interesting bit of fun to play with.
Here's my original photo and then the design that it made. If you squint, you can see the designI'm not sure I'd ever make the quilt but it might be useful for portraits.
Check it out at: http://www.vam.ac.uk/microsites/quilts/patchwork
