The Histogram graphs the number of pixels at each brightness level, and from left to right, the areas of the Histogram represent shadow, mid tones, and highlights. The Histogram provides three color channel and luma channel information that describes the distribution of red, green, blue, and luma pixels throughout the current frame. To open a scope, navigate to Window > New Scope and select the required scope from the list. When disabled, scopes only display data for the current area requested by the Viewer rather than the full frame.

Force full frame - When enabled, scopes display data for the full frame, regardless of what portion of that frame is displayed in the Viewer.

This may slow down rendering, as it may require image calculation. When disabled, scope data does not include the applied Viewer color transforms.

Include viewer color transforms - when enabled, scope data includes the applied Viewer color transforms (gain, gamma, and LUT).

luma/chroma encoding - sets the video standard to use when converting RGB to luma or chroma values in the scope displays, either REC601 or REC709.

white point - sets the white out of range warning level.

black point - sets the black out of range warning level.There are a number of global controls ( Preferences > Panels > Scopes) that affect how the Scopes display information: Nuke provides scopes to help you evaluate your media.

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