Noise Reduction; Color Space - Christie roadie 25k User Manual

OPERATION
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Roadie 25K User's Manual
Filter
The proper filter setting is automatically set for virtually all
signals, and rarely needs to be changed. It applies a low pass
filter for noise reduction in the incoming input signal,
particularly for HDTV or SDTV. Applied in the analog domain
before sampling, this filtering removes high frequencies and thus
reduces pixel phase noise (note this also reduces signal bandwidth). Override only if
standard pixel tracking and phase adjustments do not adequately clear up a "noisy"
video signal, or if a graphics signal appears overly "soft". Both instances indicate that
"Filter" may be set to the wrong option.
Detail
"Detail" adjusts the sharpness of a video image so that edges remain clearly defined.
It can be particularly useful if a significant "Noise Reduction" adjustment has caused
the image to appear too soft. Adjust until the display is as sharp as desired, keeping in
mind that because "Detail" adds some high frequencies back into the image, it can
also re-introduce a certain degree of noise.

Noise Reduction

Noise reduction is similar to the "Filter" control, but operates in the post-sampling
digital domain with a more subtle effect. Higher settings are most useful for clearing
up noisy RGB images such as those from a PC. Adjust as desired, keeping in mind
that reducing noise (which reduces high frequencies) may also soften the image.

Color Space

"Color Space" determines how the color components of an
analog input signal connected to
INPUT 6.
are decoded for accurate color in the display. Although
color space for these analog signals is automatically determined
by the projector, in some circumstances you may wish to
override this and manually set a specific color space.
NOTE: For digital signals or for signals connected to
space function is entirely automatic and the pull-down list disabled.
The current color space appears in the Image Settings menu. Press
different option:
•
RGB
Select
•
YPbPr (Video)
Select
•
YPbPr (HDTV)
Select
NOTE: When certain RGB signals are first connected, the projector may not initially
recognize them as RGB and will incorrectly decode their color information as YPbPr
(video). These signals can include:
•
RGB signals in NTSC, PAL, SECAM frequency ranges
•
Scan-doubled sync-on-green
•
Scan-quadrupled sync-on-green
For these signals, change the Color Space to RGB, then define a new channel for
future use.
INPUT 1, INPUT 2, INPUT 5
unless you are using component video at
with a standard definition televised signal (SDTV)
with a high definition televised signal (HDTV).
or
INPUT 3 INPUT 4
or , the color
to select a
INPUT 1, 2, 5 6.
or