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Section 3: Operation
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.
This control applies a
GAMMA TABLE:
default video or graphics 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 blacklevels typical of video
signals. 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 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 2.5 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 Gamma slidebar or direct key.
NOTES: 1) If no user curves have been defined and downloaded to projector memory,
only the "2.5, Graphics/Video Normal" default gamma curve is available here –
adjust as desired using gamma in the main Image Settings menu. 2) Some graphic
material will look best with the video setting while some video material is best with
the graphic setting.
In "Select Color Adjustment",
SELECT COLOR ADJUSTMENT:
choose an overall color palette 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. This
enables the adjacent 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
Christie DS+60/DW30/Matrix 3000 User's Manual
3-31
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