You can't get that kind of control by running a PS filter over an image
I dunno about Photoshop specifically, but what the artist is doing can almost certainly be modelled as applying some fairly complex algorithm to the photo, so a sufficiently fancy filter could reproduce the effect within reasonable limits.
Re: well DUH
I dunno about Photoshop specifically, but what the artist is doing can almost certainly be modelled as applying some fairly complex algorithm to the photo, so a sufficiently fancy filter could reproduce the effect within reasonable limits.