Parade Scope

An RGB parade scope splits the waveform into three stacked graphs, one each for red, green, and blue, plotted across the width of the frame. By comparing the relative height of the channels, a colorist instantly spots color casts: if blue sits high in the shadows while red and green sit lower, the blacks are tinted blue. In practice it is the primary tool for setting white balance and neutralizing a scene. You line up the bottoms of all three channels to balance the blacks, match the tops to balance highlights, and nudge mids for neutral grays. Because it shows actual channel values rather than a subjective on-screen color, the parade keeps grades accurate even on a monitor that is not perfectly calibrated.