Just like my waterproof compact camera (the Olympus TG-5) the E-M10has a lot of picture styles or Art-Filters as they also call them. This is a jpg with the "Grainy B&W Film" picture style.
I have adjusted highlights and shadows a bit, crushed the blacks and added a vignette. The grain comes with the picture style.
With the right kind of subject I kind of like this style :-)