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7800/7700 MultiFrame Manual
7812UDXD Series 3G/HD Up/Down/Cross Converter with Simultaneous Dual Format Outputs and AES I/O
6.9.1. Video Proc
6.9.1.1.
RGB Clipper
The RGB Clip parameters control RGB clipping/colour legalization process. When set to enable, the
module will clip any illegal levels of R, G, and B (individually) to their respective Black and White Levels. If
disabled, then the illegal values are passed unmodified. This control is normally set to Disable in order to
allow for Super Black or other test patterns to pass through the module.
Enable
Disable
6.9.1.2.
Gain Levels
There are eight controls that set the gain of the video. With these controls, the user can adjust the gain of
the 3 components in either the Y Cr Cb domain or the R G B domain over a range of -50% to 100% in
0.1% steps. Gain adjustments in the Y, Cb, Cr domain are made first, and then gain adjustments in the
RGB domain. Illegal values are clipped after gain adjustments.
Y Gain:
Ranges from –50% to 100% in 0.1% increments.
Cb Gain:
Ranges from –50% to 100% in 0.1% increments.
Cr Gain:
Ranges from –50% to 100% in 0.1% increments.
R Gain:
Ranges from –50% to 100% in 0.1% increments.
G Gain:
Ranges from –50% to 100% in 0.1% increments.
B Gain:
Ranges from –50% to 100% in 0.1% increments.
Saturation Gain:
Ranges from –50% to 100% in 0.1% increments.
Video Gain:
Ranges from –50% to 100% in 0.1% increments.
6.9.1.3.
DC Offsets
There are three controls that set the DC Offset of the video signal. With these controls, the user can
individually adjust the DC offset of Y, Cr and Cb with a range of +/- 200 quantization levels.
Y Offset:
Ranges from –200 to 200 quantization levels in 1 level increments.
Cb Offset:
Ranges from –200 to 200 quantization levels in 1 level increments.
Cr Offset:
Ranges from –200 to 200 quantization levels in 1 level increments.
R Offset:
Ranges from –200 to 200 quantization levels in 1 level increments.
G Offset:
Ranges from –200 to 200 quantization levels in 1 level increments.
B Offset:
Ranges from –200 to 200 quantization levels in 1 level increments.
6.9.1.4.
Hue
With this control, the user can adjust the Hue of the video signal. The Hue control can be applied to the
video signal regardless of the type of video signal being applied (SD, HD or 3G).
Hue: Ranges from –180 to 180 degrees in 0.1 degree increments.
Page - 44
The module will clip any illegal levels of R, G, and B (individually) to their
respective Black and White Levels.
Video will pass through this processing block un-modified and illegal RGB
values will pass.
Revision 1.1.1
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