1. A system comprising a target; an imaging system configured to simultaneously image a plurality of regions of interest to provide an image; and a microlens array, interposed between the target and the imaging system; and a region rejection component configured to prevent light reflected from non-ROI portions of the target from reaching the microlens array, the microlens array and the region rejection component being configured to selectively magnify the content of a plurality of regions of interest such that, within the image, at least one region that is not of interest is substantially replaced by the magnified content of the plurality of regions of interest.