Apple Final Cut Pro 5 - Manual (Page 1219)

432 Part II Project Interchange
The shape of the Histogram is also good for determining the amount of contrast in an
image. A low-contrast image has a concentrated clump of values nearer to the center
of the graph. By comparison, a high-contrast image has a wider distribution of values
across the entire width of the Histogram.
Learning to Read the Parade Scope
The Parade scope is actually a modified Waveform Monitor. Instead of displaying the
overall saturation levels for the entire image, the Parade scope separates the red, green,
and blue components of the image, and shows them as three separate waveforms side
by side. The waveforms are tinted red, green, and blue so you can easily identify them.
Low-contrast image High-contrast image
High blue levels