Christie Mirage S+/HD/WU User Manual page 89

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 blacklevels 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 appear in the Gamma Table drop-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. Different values (1-3) here indicate that the
original gamma table has been adjusted with either the
Select Color Adjustment
In "Select Color Adjustment", choose an overall color performance for all images. The "Max Drives" factory
default simply drives all 3 colors at their maximum level so that they are fully on and cannot be changed. The
two other pre-defined color adjustment choices, SD Video and HD Video, apply a color gamut optimized for
video sources (standard or high-definition). Alternatively, you can specify a color temperature, which enables
the nearby Color Temperature slidebar and applies its current setting (default = 6500K).
If none of the pre-defined "Select Color Adjustment" options or color temperatures suit your application, select
1 of 4 color gamuts previously defined by a user (User 1, 2, 3, or 4). A "User" option applies a customized
color performance in which the user has precisely set the hue and intensity of each color component in the
Color Adjustment by X/Y or Color Saturation submenus, and is most often needed with multiple-projector
applications. Select the color adjustment producing the best color accuracy for your application and
installation.
To configure a "User" color adjustment (gamut), use either the Color Adjustment by X/Y or Color
Saturation submenu.
NOTES: 1) "Color Temperature" defaults to 6500K until changed. All 4 "User" options default to SD Video
unless the user has redefined them. 2) Factory-defined color primaries, which ensure consistent color
gamut from projector-to-projector, can be altered in the Service menu only. If you suspect alteration,
the factory settings can be recovered with selection of Reset to Factory Defaults? in the Service menu
(password-protected).
Color Temperature
Adjust to apply a specific color temperature to all displays. Color temperatures are expressed in degrees Kelvin
(3200-9300K), and utilize different combinations of the projector's original native color primaries to produce a
"coloration" or cast (reddish or bluish) in images-the lower the temperature, the more reddish the cast; the
higher the temperature, the more bluish the cast.
NOTE: The slidebar is only enabled if you have a source connected, and have selected "Color Temperature"
in the adjacent "Select Color Adjustment" drop-down list in the
Roadster, Matrix WU, Mirage S+/HD/WU User Manual
020-100002-06 Rev. 1(04-2011)
Gamma
slidebar or direct key.
Advanced Image Settings
Section 3: Operation
Submenu.
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