System information
4.  The vectorscope monitor displays the chroma values of the video  signal:
Frame Vectorscope Description
Colors   are within legal broadcast limits. Note that the 
dots for each color in  the test pattern are centered in the 
appropriate target.
The image  has too much blue. Note that the display is 
distributed toward the blue  portion of the vectorscope.
The red  in the boat cover is out of range. Note that the 
display extends beyond  the red target.
5.  Hover over a portion of the monitor to display the chroma value  at the pointer position:
The Video Waveform Monitor
The waveform monitor in the Video Scopes  window allows you to monitor the luma values (brightness or Y 
component)  of your video signal. The monitor plots luma values on the vertical axis  and the width of the 
current frame on the horizontal axis.
For more information, see "Monitoring Video with Scopes" on page 481.
If  you want to include chroma (color or C component) information in the waveform  monitor, choose 
Composite  from the drop-down list at the top of the monitor window. When you choose  Luminance, 
chroma  information is omitted.
1.  From the View menu, choose Video  Scopes to toggle the display of the Video Scopes window.
2.  Choose Waveform  from the drop-down list.
3.  Position the cursor in the frame you want to analyze.  If the Update Scopes  While Playing button 
 is selected, you can monitor the waveform  during playback.
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