GRASS VALLEY 8995DNC -, Инструкция по эксплуатации

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8995UPC/DNC/UDX — Instruction Manual 63
Configuration
Video Proc Web Page
Use
this
link
The Video Proc web page ( Figure 37 on page 65 ) provides overall video
processing and Y/C clipping controls for the HD or SD signal in addition
to image enhancement controls.
Note The video scaler on this module does not handle Super Black signals.
Video Processing Controls
The following controls are provided for video processing:
•
Y/Cb/Cr Gain
– set the gain for the Y, Cb, or Cr channel from 0 to 200% with
the corresponding control or adjust all gains together by using the
Total
Gain
control.
• Y/Cb/Cr Offset – set the offset ± 100% for the Y, Cb, and Cr channels with
the corresponding control.
•
Color Saturation
– adjust the percentage of color saturation relative to
100%.
•
Hue
– adjust the hue ± 180 degrees.
Y/C Clip Controls
Use the following clipping controls to adjust levels on the output signal:
•
Clip Enable
checkbox – check to enable the clip controls.
• Use the
Y White Clip (%)
control to set the clipping level for the top end
(white) of the luminance signal (positive excursions) from 109% down
to 50%.
• Use the
Y Black Clip (%)
control to set the clipping level for the bottom end
(black) of the luminance signal (negative spikes) from -7% to +50%.
• Use the
C White Clip (%)
control to set the clipping level for the top end of
the chroma components (Cb and Cr) of the video signal (clips large
excursions and reduces overall saturation level to fit within clip) from
109% down to 50%.
Image Enhancement Controls
The following controls are provided for image enhancement:
•
Noise Reduction
– select the
Enable
control to enable the Noise Reduction
function. This allows reduction of low level noise in the output signal
which may occur during the conversion process.
•
Level
– when Noise Reduction is enabled, control the level of noise
reduction with the Level control from a very low level (0) to a high level
(63).