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4. OPERATION
continued …
The Picture menu provides video adjustments for the source material and each source component.
Input Color Space
Enter the color space of the source here – HDTV YCbCr, SDTV YCbCr, Auto YCbCr (switches color space
according to whether input is HD or SD), Studio RGB, or Extended RGB. If you do not know the color space
of the source, use the setting that produces the best picture, especially with dark scenes.
Brightness / Contrast / Color / Tint
If a source needs Brightness (black level), Contrast (white level), Color (saturation), or Tint (hue or phase)
adjustment, you can do it here. The factory default for each of these is 50. If input is RGB and output is RGB,
Color and Tint are not adjustable, so that color space conversion is avoided. If you need to adjust the image
when output is set to RGB (or Extended) in menu 8, set the source to YCbCr output.
Film Mode
Did the source originate from film or from video? If from a video camera, which type? If it’s a film source on
TV, was a regular pattern of fields deleted to change the playing speed? Is it animation, and if so, according
to which animation spec? Is it a mix of sources edited together? Are video characters being scrolled across
a film source?
In order for a video processor to provide best image quality, it must detect the source’s cadence, or pattern
of field sequence, and deconstruct it accordingly. The Gennum VXP processor can not only do that, it can do
so even when the input is high-definition. Film Mode can be overridden by changing the setting from ‘Auto’
to ‘Off’, but don’t do it unless you need to.
Detail Enhancement
Digital processing is used to do what the name implies – experiment with the level adjustment and leave it
where the picture looks best. The factory default is 0.
Noise Reduction
This can be used to reduce or remove ‘snow’ in the picture, often seen in broadcasts – experiment with the
level adjustment and leave it where the picture looks best. The factory default is 0.
Motion Threshold
A high-quality deinterlacer has to treat the areas of the picture that contain motion differently from the areas
that have very little or no motion. The motion threshold is the point where one type of deinterlacing changes
to another. The factory default (4) should work best but adjustment is provided in case it’s needed.
SCALE OUTPICTURE CROP INPUT PATTERNS INFOOUTPUT
Input Color Space
Bright / Contrast / Color
Film Mode
Detail Enhancement
Noise Reduction
Motion Threshold
Chroma Bug Filter
Video ADC