OmniTek OTR 1001, User Manual

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OmniTek OTR 1001 User Guide, v3.1 H-5
H.2 Histogram
The Histogram display presents colour histograms of the video that is currently being analysed.
Parts of the signal that lie outside the required gamut are shown in red.
The analysis is applied either to full frames of active video or just to the Region of Interest where
this is enabled (see Section E.2). Where the VIEW_3D or the ALIGNMENT option is installed,
the Histogram display may also be used to compare the luma and chroma levels in two versions
of the same image, e.g. the left-eye and right-eye images of Stereo 3D video: see Section I.9.
The histogram displays provide a detailed and accurate method of assessing colour gamut.
Unlike traditional displays that simply indicate that a signal is out of gamut, these histograms
allow you to see to how far out of gamut the signal goes.
The histograms for the different colour components may be displayed overlaid, stacked or in a
parade format, while the scale against which they are shown can be either linear or logarithmic.
A cursor may optionally be added to the display, along with a read-out of the value for each
colour component at the current cursor position.
The same general steps are involved in working with this display as are used with other Views.
(See Section E.1)
Figure H-3: Example Histogram display
Selection
The Histogram display is one of the Views offered within the GAMUT category.
Control Panel Mouse & Keyboard
To display the Histogram:
Press the GAMUT tile button until the
Histogram display appears Select Histogram from the GAMUT
section of the View Tile Browser.
(For more detailed instructions, see Section E.1.)