Change a Photo to a Sketch -
5 Minutes ... Really!
- Open your file
- Ctrl-J to duplicate the layer
- Image/Adjustments, Desaturate
- Ctrl-J again
- Ctrl-I to invert
- From Layers palett, choose Blend. Then Color Dodge
(Your picture will look mostly white, but don't worry. Trust me.
- FILTER/Blur, Motion blur. Drag the Distance slider until satisfied .