Runco Video Xtreme VX-40d Owner's Operating Manual page 55

Section 3: Operation
Figure 3.13. Adjusting Input Levels Using the Peak Detector
(RED EXAMPLE SHOWN)
Advanced Image Settings —
SUBMENU
GAMMA TABLE: This control selects
and applies the normal 2.2 gamma
setting or a user-defined "arbitrary"
(custom) gamma table that has been
previously downloaded to projector
memory (these custom gamma
tables—a.k.a. curves—are created in
Runco's Arbitrary Gamma application
for the PC, and are downloaded via a
separate utility). Use of custom curves
can improve performance for certain
kinds of source input and applications.
Generally the best gamma curve is
one that produces maximum contrast, brightness and color performance for the current
signal and ambient lighting conditions.
NOTE: If no such curves have been defined and downloaded to projector memory, only
the "2.2, Normal" default gamma curve is available here—adjust as desired in the main
Image Settings menu.
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 one of four color gamuts previously defined by a user (User 1, 2,
3, 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.
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