System information
1.  From the View menu, choose  Video Scopes  to toggle the display of the Video Scopes window.
2.  Choose Histogram  from the drop-down list.
3.  Choose a histogram type from the menu:
Histogram Description
Luminance Charts  the luminance or brightness of colors in your video.
Red Charts  the red tones in your video.
Green Charts  the green tones in your video.
Blue Charts  the blue tones in your video.
Alpha Charts  the alpha channel (transparency) in your video.
Luminance/R/G/B Stacks luminance and RGB charts.
Lightness/a/b Stacks  lightness and a/b color charts, allowing you to analyze your 
video in the Lab (L*a*b* or L*, a*, b*) color space. This view is 
especially useful with the LABAdjust video plug-in.
4.  Position the cursor in the  frame you want to analyze. If the Update  Scopes While Playing button 
 is selected, you can monitor your video during  playback.
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