1. A system for the automated analysis of sperm comprising: an imager comprising a sample holder configured to receive a sample containing sperm and an illumination source configured to illuminate a first side of the sample holder through a spatial filter interposed between the illumination source and the sample holder; an image sensor disposed on a second, opposite side of the sample holder configured to acquire a plurality of image frames of the sperm in the sample, the plurality of image frames containing holographic images of the sperm; and a computing device including a processing unit operably coupled to the image sensor and executing a software program thereon, the software selectable to perform at least one of: (i) automatically sum the plurality of image frames and identify the immotile sperm based at least in part on the on the automatic summation, and (ii) automatically subtract consecutive image frames of the plurality of image frames and identify the motile sperm based at least in part on the automatic subtraction.