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HD2200
SECTION 4
HD22 14/03/01 Version 1 Issue 2
4.14
OUTPUT
The following menu items are all related to the
output signal standard and control.
STANDARD
This allows selection of the output video standard.
The standards are named using the following
convention: total number of lines, (active lines),
frame rate. Options are:
525(480)/29i
625(576)/25i
To activate the newly selected standard press the
lower right-hand button
adjacent to Select.
CONTROL
When Control is selected, the image below is
displayed.
HORIZONTAL ENHANCEMENT
Controls the high frequency horizontal information
to make the output pictures appear sharper or
softer. Options are:
Band
Selects which frequency band within the
picture is enhanced, 0 corresponds to
lowest frequency band, 3 is the highest.
Gain
The amount of gain applied to the band
selected for enhancement before the
coring process.
Core
Used to reject signals below the selected
threshold before addition to the original
signal. This has the effect of preventing
the enhancement process from
amplifying noise.
HORIZONTAL DE-RING
Controls the de-ringing filters for both luminance
and chrominance. Options are:
None
Low
Minimum de-ring
Medium
High
Maximum de-ring
VERTICAL ENHANCEMENT
This controls the detail processing in the vertical
filters.
The enhancer adjusts the levels of high frequency
vertical information for luminance and
chrominance together to make the output pictures
appear sharper or softer. Options are:
None
Low
Minimum enhancement
Medium
High
Maximum enhancement
PROCESSING AMPLIFIERS
Allows adjustment of the gain and offset of the
output video.
GAIN
These menu items allow the user to adjust the
gain of the luminance (Y), blue colour difference
channel (Pb) and the red colour difference channel
(Pr). The Master gain is applied to all three
channels simultaneously while the Y, Pb and Pr
gains are only applied to the selected channel.
Thus, the overall gain of any channel is the
product of the master gain and the individual gain.