1. A method, comprising: providing an image system that comprises a light valve and an image capturing unit that comprises a detector, wherein the light valve comprises an array of individually addressable pixels, and wherein the detector comprises an array of detector pixels; obtaining a correlation between the light valve pixels and the detector pixels; capturing an image using the detector pixels; and reproducing the captured image using the light valve pixels based on the obtained correlation and the captured image; wherein the step of capturing an image further comprises: directing non-visible light to the light valve pixels; reflecting the non-visible light by the light valve pixels onto a non-visible feature; capturing, by the detector pixels, light from the non-visible light so as to generate an image of the non-visible feature by the detector pixels; setting each light valve pixel to a state based on a state of the correlated detector pixel when said detector pixel is capturing the light from the non-visible feature; and producing a visible image by the light valve pixels.