1. A method comprising: receiving a video signal configured to: generate a viewable image substantially within a human visible spectrum having one or more of a red component, a green component, and a blue component; and generate one or more infrared images substantially outside the human visible spectrum and having an infrared component detectable by a night vision device; and in response to the video signal: modulating the red component to generate a red portion of the viewable image; modulating the green component to generate a green portion of the viewable image; and collectively modulating the blue component and the infrared component to generate a blue portion of the viewable image and the one or more infrared images.