Premiere Pro has a vectorscope and waveform monitors (YC Waveform, YCbCr Parade, and RGB Parade) to help you output a video program that meets broadcast standards and also assist you in making adjustments based on aesthetic considerations, such as color corrections.
For decades, video production and duplication facilities have used waveform monitors and vectorscopes to accurately evaluate video levels—specifically, color and brightness.
A vectorscope measures the chrominance (color components) of a video signal, including hue and saturation. A vectorscope maps a video’s color information onto a circular chart.
The traditional waveform monitor is useful in measuring the brightness, or luminance component, of a video signal. In Premiere Pro, the waveform monitors can also display chrominance information. The waveform monitor works something like a graph. The horizontal axis of the graph corresponds to the video image from left to right. Vertically, the waveform displays the luminance levels, and optionally, the chrominance levels.
Andrew Devis shows how to find and understand the Vectorscope in Premiere Pro in this video tutorial on the Creative Cow web site.
Andrew Devis shows how to find and understand the YC Waveform Monitor in Premiere Pro in this video tutorial on the Creative Cow web site.
Jeff Sengstack explains how to work with the YC Waveform Monitor and the Vectorscope in his article, “Streamlining Color Correction in Premiere Pro” on the Pro Video Coalition web site.
Maxim Jago introduces the Waveform Monitor for color adjustments in Adobe Premiere Pro in this video on the video2brain web site.