Turn a Picture into a line drawing

1. Open your picture, if it's a colour picture you need to de-saturate it. (Ctrl
   Shift U).
   
2. Go to Filter then Stylise then Find Edges.
   
3. Open Levels (Remember: round icon on bottom of layers pallet – coloured black and white)
   
4. Move left hand arrow head below histogram on Levels Pallet to the right until the desired effect is reached. Then click OK.
   
5. Flatten image on the layers pallet.
   
6. Save image to a new name.