Canon EOS-1D X Manual (en)

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12
Displaying the Histogram Palette
The histogram palette shows a histogram of the selected image. You 
can quickly check a histogram without opening a tool palette.
Select the [View] menu  [Histogram palette].
The histogram palette appears.
You can select any of the following four histograms from the 
menu that appears when you right-click with the mouse.
[Brightness only], [RGB separately], [YRGB separately], [RGB 
together]
Advanced
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