Selenio™ Network Processor
User Guide
Configuring Programs
© 2019 Imagine Communications Corp.
Proprietary and Confidential.
May 2019 | Page 111
GBR Clip Enable
check to enable the following sliders to control Green/blue/red clipping.
These sliders aren't visible until enabled.
G Gain / B Gain / R Gain
Adjusts the gain of the respective component of the video. The range is -
6.00 to 6.00 dB.
G Offset / B Offset / R Offset
Adjusts the offset of the respective component of the video. The range is -
100 to 100 mV.
Cb Gain / Cr Gain
Adjusts the gain of the respective component of the video. The range is -
6.00 to 6.00 dB.
Cb Offset / Cr Offset
Adjusts the offset of the respective component of the video. The range is -
100 to 100 mV.
White Knee (nits)
Adjusts the point at which the white stretch is applied to the white portion
of the video. The range is 50-3200 nits.
White Stretch (%)
Adjusts the amount of white knee applied to the video.
White knee determines the amount of additional gain applied to the white
end of the RGB transfer functions in the look-up tables.
The value displayed is a percent of the available correction.
A positive white knee increases the slope of the last 15% of RGB values,
and decreases the slope of the preceding 15%.
The figure below displays increased and decreased white slope.
