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3.
Click on the
Enable
slider on top to activate the selected Blend file.
8.5.3 Basic black level adjustment
About adjusting the black level
The purpose of the black level adjustment is to align the black levels in the overlapped regions with the black
levels in the other regions.
This is needed because the black levels will be brighter in the blend zones, since multiple projectors will
project on the same screen area.
The size of the black level area is calculated automatically from the blend zones. This is done by using the
start position and size of each edge of the blend and adding an additional size of 8 pixels to reduce the effect
known as "sea of mirrors".
You can also specify the offsets manually by turning off the automatic calculation. The black level value is
adjusted in a 8 bit resolution from 0 to 255.
The following figure shows how this occurs in a side by side configuration without any correction of the black
level.
Picture Left
Picture Right
Blend Zone
Image 8-50
How to adjust the black level manually
1.
In the main menu, select
Installation
→
Blend and Mask
→
Black Level
→
Basic Black Level
.
Image 8-51: Black Level menu
—
Basic Black Level
The Basic black level menu is displayed.
Summary of Contents for XDL-4K30
Page 1: ...ENABLING BRIGHT OUTCOMES User Manual XDL ...
Page 8: ...R5906151 02 XDL 8 ...
Page 28: ...R5906151 02 XDL 28 Pulse Remote Control Unit ...
Page 42: ...R5906151 02 XDL 42 Input Communication ...
Page 53: ...53 Overview Overview Navigation Test Patterns R5906151 02 XDL Graphic User Interface GUI 5 ...
Page 62: ...R5906151 02 XDL 62 GUI Source ...
Page 72: ...R5906151 02 XDL 72 GUI Image ...
Page 122: ...R5906151 02 XDL 122 GUI System Settings ...
Page 138: ...R5906151 02 XDL 138 Specifications ...
Page 142: ...R5906151 02 XDL 142 Environmental information ...
Page 143: ...143 R5906151 02 XDL Overview video timings for video interfaces C ...
Page 152: ...R5906151 02 XDL 152 Overview video timings for video interfaces ...
Page 153: ...153 R5906151 02 XDL DMX chart D ...
Page 163: ...R5906151 02 XDL 163 ...
Page 164: ...Barco NV President Kennedypark 35 8500 Kortrijk Belgium www barco com R5906151 02 2018 11 07 ...