1. A system for detecting high-energy photons, comprising: a pixelated image detector for capturing at least a still image or a video image; the pixelated image detector situated such that a visible light and one or more high-energy photons interact with the pixelated image detector, wherein the pixelated image detector generates a desired number of consecutive still images or video images from the visible light and high-energy photons interacting with the pixelated image detector; a lens between the pixelated image detector and the visible light; and one or more processors operably connected to the pixelated image detector and configured to perform operations on the one or more still or video images, the operations comprising: comparing the desired number of consecutive still images or video images to discriminate between the visible light that interacts with the pixelated image detector and the high-energy photons that interact with the pixelated image detector; creating a pixelated image based at least in part on said comparison; applying a predetermined threshold limit to the high-energy photons that interact with the pixelated image detector; and determining a radiation level from the pixelated image.