Apple Final Cut Pro 5 - Manual (Page 1215)

428 Part II Project Interchange
With the Waveform Monitor set to display saturation, you can also compare the relative
saturation levels of two clips by comparing the thickness of their displayed waveforms.
Modifying the saturation of one clip to match that of another is simple; just adjust the
Saturation control of one of the color correction filters in one of the clips to compensate.
An image with high
saturation
An image with low
saturation