HD2014, HD2012, HD2011 Video Passport
TM
1RU Multi-Path Video Converter, Frame Synchronizer and Decoder
FRONT PANEL OPERATION
Revision 0.1
Page
5-15
5.1.2.18.
Setting the Noise Reduction Level
The
Noise Reduction
control manages the level of noise reduction to apply to the video signal. The
selection levels automatically set the motion detection threshold and the aggressiveness of the filters
to remove noise.
Path 1 to 4
NoiseReduction
Level
gnr
Off
Low
Middle
High
Off
- When the control is set to
Off
, there is no noise reduction. The
input video is left untouched.
Low
- When the control is set to
Low
, the noise reducer will have a
lower motion detection threshold and a less aggressive filter. This
level of noise reduction is used for video that has low random noise,
where removal of low-level details is minimized.
Middle
- When the control is set to
Middle
, the noise reducer will have
an average threshold set for the motion detection threshold and
aggressive filters. This level of noise reduction is used for video that
has typical amounts of random noise, where the module will remove
random noise and affect low-level details, more so than a
Low
setting.
High
- When the control is set to
High
, the noise reducer will have a
high motion detection threshold and a very aggressive filter. This level
of noise reduction is used for video that has a high level of random
noise, where the filters will remove the random noise, but will soften
the low-level details.
5.1.2.19.
Setting the Y, Cr, Cb, R, G, B Gain
The
Y Gain
,
Cr Gain
,
Cb Gain
,
R Gain
,
G Gain
,
B Gain
enable the user to change the gain of the
video signal in the Y Cb Cr space or the R G B space. The
Y Gain
,
Cr Gain
,
Cb Gain
,
R Gain
,
G
Gain
,
B Gain
controls all operate in the same manner. Gain adjustments in the Y, Cb, Cr domain are
made first, followed by gain adjustments in the RGB domain. Illegal values are clipped after gain
adjustments. For the sake of simplicity, only the
Y Gain
control will be described in this manual.
VIDEO
Processing
Converter
Path 1 to 4
Proc
Y Gain
-50 to 100
With the
Y Gain
control, the user can adjust the gain of the Y channel
over a range of +-50/+100% in 0.1% increments. To set the gain value
for the Y channel, enter a value between -50% and 100% into the
appropriate
Y gain
field. On the HD201x front panel the selected value
is show in both % (range -50% to +100%) and a numerical value (-500
to +1000)
