Came across these useful tips on converting a portrait photo in to a cartoon style shot.
Take you original shot & do the following :-
- Filter -> Artistic -> Poster Edges
- Image -> Adjustements -> Brightness / Contrast -> Up Brightness by 10 & Contrast by 30
- Filter -> Artisitic -> Cutout
Results are from this : -

to this :-
Anyone else want to share their cartoon self
