This guide here does it in "four" steps:
Cartoon Drawing Photoshop Images Effect
- Open an image that you would like to manipulate. Make sure your image is in RGB mode. To check this, go to Image under the menu bar - Mode - RGB Color.
Make a duplicate of this layer as you will be working on this layer going forward.

Now we will be applying the Poster Edges filter. To do this, go to Filter > Artistic > Poster Edges.
After the Poster Edges effect, we will Adjust the Brightness & Contrast with the values: Brightness Value: 10 Contrast: 30.

- Now we will do an artistic cut out effect to give it that cartoon look. Go to Filter > Artistic > Cut Out. And this is what you get!
