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color difference (P
) and red color difference (P
B
clean, clear, vibrantly detailed color picture.
The typical filter leaves traces of the clusters of aliasing noise, which
look like lumps in the top diagram. Super Sub Sampling Alias Filter
circuits on the Y, P
effectively.
"Below Black" reproduction with
Graphical Gamma Adjustment
The DVD format dictates specific quantization for specific brightness
levels. For example, full black corresponds to a quantization of 16 while full
white corresponds to 235. However, direct-view CRTs, plasma panels, CRT
projectors and LCD projectors each have specific needs. For example, LCD
projectors are subject to "black float" and can benefit from a calibration "below
black." CRT direct view televisions tend to lose dark detail when viewed in
brightly-lit rooms.
Historically, gamma adjustment has matched the grayscale of a video
camera to the general transfer characteristics of CRTs. Sony's Graphical
Gamma Adjustment matches the grayscale performance of the DVP-NS9100ES
and NS3100ES to the specific transfer characteristics of your display. Used with
a commercially available calibration disc, the Graphical Gamma Adjustment can
achieve ideal reproduction.
The system enables you to make adjustments to gamma much like a
graphic equalizer adjusts audio frequency response. As with an audio equalizer,
aggressive adjustment can yield unnatural results. The controls are best used to
make gamma curves that are smooth and subtle. Sony's control offers eight
points of correction, each with 8-bit precision. And you can always return the
gamma controls to the industry-standard "flat" state at the touch of a button.
ES DVD Players 2005, Version 4.0
and P
channels control this aliasing noise more
B
R
). This results in a consistently
R
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