1. A method of providing an image of a scene utilizing imaging optics, wherein radiation from the scene impinges on at least one focal plane, the method comprising: sampling a first spectral band to obtain an initial image frame; determining at least one region of interest of the scene from the initial image frame, each of the at least one region of interest associated with a mean signal level; illuminating the at least one region of interest with at least one illuminator when the mean signal level of the at least one region of interest is at or below a respective threshold of a first plurality of thresholds, the at least one region of interest being illuminated in accordance with a power threshold indicating a minimum illuminator power and agility necessary to illuminate the at least one region of interest; collecting at least one illuminated image frame in at least a second spectral band; and generating at least one image to be displayed from at least the at least one illuminated image frame.