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resolution of current displays is set to higher values, such as 1024x768
(XGA), 1280x1024 (SXGA), or 1600x1200 (UXGA).
Saturation
Refers to the intensity of a specific hue (color). A highly saturated hue is
vivid and intense, whereas a less saturated hue appears more grey. A
completely unsaturated color is grey. In terms of the RGB color model, a
fully saturated color exists when you have 100% brightness in one of the
three channels (say, red) and 0% in the two others (green and blue).
Conversely, a fully desaturated color is one where all of the color values are
the same. Saturation can therefore be thought of as the relative difference
between the values of the channels.
SDTV
SDTV is an acronym for “Standard Definition Television” that identifies
lower resolution systems when compared to High Definition Television
(HDTV) systems. SDTV systems use the same 4:3 aspect ratio and 480
scan lines to produce a picture as regular analog television sets, but digital
decoding enhanced of the signal, displaying a sharper and crisper picture.
SDTV broadcasts are either interlaced (480i) or use progressive scan
(480p), the latter method providing the best overall image quality.
SECAM
An analog color video signal that originated in France, and is used in many
other countries, including (but not limited to) much of Eastern Europe,
parts of the Middle East and Asia. Like the PAL video standard, SECAM
also draws a total of 625 vertical interlaced frames of video at a refresh rate
of 25Hz, but uses a fundamentally different way of encoding its colors. The
name is an acronym for “Séquential Couleur avec Mémoire,” which is
French for “sequential color with memory.”
Shadow Mask
In CRT monitors, the shadow mask is a metal plate full of tiny holes that is
attached to the inside of the glass screen. It focuses the beams from the
electron guns at the back of the CRT. The distance between these holes is
called the dot pitch.
Summary of Contents for RADEON X1900 G5
Page 1: ...ATI RADEON X1900 G5 MAC EDITION User s Guide P N 137 41055 10...
Page 4: ...iv Index 35...
Page 8: ...4 TV Out Support...
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