Abstract: Various embodiments of the present invention provide a system that is operable to encode a signal within a video by increasing a brightness of a first portion of a first frame by less than about five percent, decreasing a brightness of a second portion of the first frame by less than about five percent, and storing the first frame as a portion of the video. The encoded signal may be decoded by determining the difference in the brightness of the first portion from the brightness of the second portion. Such a configuration allows signals to be encoded on viewable portions of videos for use on any type of display while being generally imperceptible to viewers watching the videos.