Christie Mirage S+, User Manual

Page: 71 / 169

OPERATION
Roadster/Mirage S+ User’s Manual
3-33
Figure 3.16. Adjusting Input Levels Using the Peak Detector
(RED EXAMPLE SHOWN)
Advanced Image Settings
— SUBMENU
Use the Advanced Image
Settings submenu to make the
adjustments necessary for lesser
used but more specialized
applications on your projector.
GAMMA TABLE:
This control applies a default video , graphics or simple gamma table
or “curve” to your images, controlling the intensity of midlevel colors and producing
maximum contrast, brightness and color
performance. As shown at right, the
graphics curve is a simple power curve
while the video curve has a linear segment
near black to compensate for increased
black levels typical of video signals. A
simple gamma curve is a value of 2.2 and is
correct for most signal conditions. Although
the projector automatically applies either the graphics or video curve according to
what type of incoming signal is detected, in some cases you may wish to override this
default and use
graphics gamma for a video source or video gamma for a graphics
source. Alternatively, if neither default is ideal, you may prefer to apply the simple
(non-optimized) gamma curve or a user-defined custom gamma curve that has been
created externally, named, and downloaded to the projector (requires separate PC-
based
Arbitrary Gamma and KoRE Librarian software applications). If any of these
special user curves have been installed, their names will appear in the Gamma Table
pull-down list.
Keep in mind that any Gamma Table choice sets the related Gamma value (shown in
the Image Settings menu) to a 2.2 default, where it can be fine-tuned as desired.