1. A passive skin detection system comprising: a main body defining a housing; a collection optics system arranged in the housing, said collection optics system including at least one beam splitting device; a plurality of narrow band filters, each of which is centered around a first predetermined wavelength, while also being separated one from another by a second predetermined wavelength; an image capture system including a plurality of image capture zones arranged in the housing, said image capture system storing visible light data as a plurality of digital images formed from a plurality of pixels, each of said plurality of digital images being associated with visible light passed through a respective one of the plurality of narrow band filters onto a corresponding image capture zone; and an image processing system operatively connected to the image capture system, said image processing system employing a detection algorithm that compares relative intensities of each of the plurality of digital images to identify one or more of the plurality of pixels having an absorption bandwidth indicating a presence of skin.