evertz 7800 - Setting the Color of Image Side Panels; H and V Filter Settings; Afd Stamp

7800 MultiFrame Manual
7812DCDA2Q-HD (-AA, –AES4) Dual Path HDTV Down-converter
Revision 1.0 Page 43
7.5.1. Setting The Color of Image Side Panels
There are three menu items used to set the module’s side panel colors. Side panel colors are used to fill
any space in the output image raster that is not occupied by active video. For example,
”curtain” side panels are often generated on the left hand and right hand side of an image when converting
4:3 to 16:9. Individual R, G, B controls are used to define the side panel color. Move the slider to the left to
select a lower value and move the slide to the right to select a higher value for any particular component.
R: Sets the value for the R component of the background side panels with a range of 0 to 255.
G: Sets the value for the G component of the background side panels with a range of 0 to 255.
B: Sets the value for the B component of the background side panels with a range of 0 to 255.
"
The user can use a standard color picker such as is available in Microsoft Paint to
determine the desired color values.
7.5.2. H and V Filter Settings
There are two controls that adjust the horizontal and vertical filters for the scaler. Effectively, these
controls manage the cut-off frequency for the Horizontal and Vertical filters. The smaller the value, the
narrower the corresponding filter bandwidth and the less aliasing passed through to the output. The larger
the value the wider the corresponding filter bandwidth. The H Filter also has several unique filters that
have specific enhancement profiles.
Auto
The optimal horizontal filter automatically selected to match the scaling
and the aspect ratio conversion process being performed.
Levels 5….64
Selects the horizontal filter bandwidth such that each value 5 thru 64
corresponds to 1/64
th
the bandwidth of the input signal.
Enhance HF 1 dB
High frequencies within the image are enhanced by 1 dB
Enhance HF 2 dB
High frequencies within the image are enhanced by 2 dB
Mid Band Boost 1 dB
Mid band frequencies within the image are enhanced by 1 dB
Mid Band Boost 2 dB
Mid band frequencies within the image are enhanced by 2 dB
The V Filter Cutoff controls the Vertical filter bandwidth.
Levels 1….64
Selects the horizontal filter bandwidth such that each value 1 thru 64
corresponds to 1/64
th
the bandwidth of the input signal.
Auto
The optimal horizontal filter automatically selected to match the scaling
and aspect ratio conversion process being performed.
"
Note: Aliasing will cause diagonal edges to be jagged.
7.5.3. AFD STAMP
The AFD Stamp control allows the user to specify the AFD signal that will be stamped on the output video
signal when the AFD Stamp Source control (within the AFD Control tab) is set to User AFD Stamp. When