9Rounds is an application that can help you create artwork from portrait photos in just a couple of simple steps. It comes bundled with several options and a built-in portrait image to demonstrate how it works.
Only PNG files can be opened with this tool. While previewing the original photo in the upper-left corner of the window, you can check out the modifications in the larger area.
The artwork can be controlled by displaying up to nine pixel rounds, representing the amount of detail (grain). This can also be tweaked by adjusting the lightness. Modifications are reflected in real time so you dont have to click buttons to trigger this.