With the Video False Colorizer & Video Color Synthesizer, color is "mapped" onto the monochrome input based on its amplitude (intensity). Normally, as brightness increases, color will progress from blue, to cyan, green, yellow, red, and then magenta. The direction of the color map can be reversed with the flip of a switch. A multifunction knob also allows the phase (hue) of the color to be rotated with respect to the amplitude of the monochrome input. This knob can also control the amount of the monochrome input (intensity) and the amount of false color (saturation) present at the output. The user can also turn on and off a legend, presented on the left side of the screen, showing the resulting output as it progresses from dark to bright.