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Terminology for televisions
Pixel resolution is the amount of individual points known as pixels on a given
screen. A typical resolution of 720×480 means that the television display has
720 pixels across and 480 pixels on the vertical axis. The higher the resolution
on a specified display the sharper the image. Contrast ratio is a measurement of
the range between the brightest and darkest points on the screen. The higher the
contrast ratio, the better looking picture there is in terms of richness,
deepness, and shadow detail.
The brightness of a picture measures how vibrant and impacting the colors are.
Measured in cd / m2 equivalent to the amount of candles required to power the
image.
On the other hand, the so-called brightness and contrast adjustment controls on
televisions and monitors are traditionally used to control different aspects of
the picture display. The brightness control shifts the black point, or shadow
level, primarily affecting the contrast ratio or gamma of the image, while the
contrast control primarily controls the image intensity or brightness.
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