Need to pull of that cel-animated look? Try this technique on your stills or footage.
In Photoshop:
1. Open and size the image.
2. Run the Find Edges Filter (Filter>Stylize>Find Edges). There is no dialog box for this effect.
3. Immediately after running the filter, Fade it by Choosing Edit>Fade Find Edges or pressing Shift+Cmd+F (Shift+Ctrl+F). Remember this shortcut by saying I want to command (or control) how the filter Shifts (i.e. Fades).
4. Try Overlay mode and adjust the opacity slider to taste. Depending on your source image, you can use different blending modes.
In After Effects:
1. Add your clip into a new comp. The easiest way to do this is to drag your shot onto the new comp icon at the bottom of the project window.
2. Duplicate the shot by pressing Cmd+D (Ctrl+D).
3. Apply the Find Edges effect by choosing Effect>Stylize>Find Edges.
4. Change the blending mode an opacity of the layer. You may also want to add a Fast Blur effect to smooth out your results.