Operation
Mirage WQ-L User Manual
47
020-101372-01 Rev. 1 (04-2014)
Image Settings
Adjust Gamma Settings
To access the Gamma Settings, select Image Settings > Gamma Settings. The system offers two
types of gamma correction. Gamma correction can be applied to a specific source to correct for
luma encoding. This is the Gamma control. The system also provides a global Gamma Correction
control. The global control offers an offset applied to all displays. This offset is used to compensate
for changes in ambient conditions, such as ambient light in the room and projected material.
Gamma Correction
Gamma Correction applies a global offset to all gamma settings for each input. This offset is used to
compensate for changes in ambient conditions, such as ambient light in the room and projected
material. It affects the shape of the curve by performing a linear transform toward a gamma curve
of 1.0 while the control is increasing and likewise a linear transform toward a gamma of 3.0 as the
control is decreasing. To correct a particular source only, use the Gamma control.
Select Gamma
Select the base gamma table
for a given source. Select
from one of the standard
tables, a custom gamma
function, or select an
arbitrary gamma table that
has been downloaded to the
projector. A separate PC
utility is needed to do this.
The 2.22 curve is a power
curve typically used to
encode graphics and video
sources. The Standard curve
(auto setup default) is a modified 2.22 curve with a small linear section in the black that enhances
the detail in darker areas of the projected content. Typically Standard or 2.22 is used for all
sources. Alternatively, if neither default is ideal, apply a simple gamma curve by defining a custom
power function and slope. Select Gamma Function to enable the function and slope controls.
i
To access the gamma settings for your secondary input select Input and Switching >
Secondary Image Settings > Secondary Gamma Settings.
i
Gamma correction should only be adjusted to compensate for ambient conditions.
i
For complex non-standard gamma curves, a user-defined curve created externally and
downloaded to the projector can be used (requires separate PC-based Arbitrary Gamma
software application to create the table, and the WebUI to download it). If any of these
special user curves have been installed, their names will appear in the Gamma drop-down
list.
Output Intensity
Signal Input Level
Signal Input Level
Output Intensity
2.22
Standard
has standard
linear rise
near black
