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Glossary
G-13
Video Key: A self key or chroma key in
which the fill signal is video from the
video key source or a matte from one of
the matte generators.
W
Wipe: A transition between two video
signals that is defined by the shape of a
pre-selected pattern. The movement of the
pattern edge is controlled by the Mix/
Effects lever arm or by an Auto Transition
operation. As the pattern edge moves, one
video signal replaces the other.
Wipe Solid: A voltage value in a wipe
generator that represents a 3-dimensional
geometric shape, such as a cone, which can
be “sliced” by a comparator to create a
circle pattern
Wipe Pattern: The shape and/or rotation
of the pattern edge between two video
signals in a wipe transition.
Word: A unit of data which occupies one
location in memory and is acted upon as a
unit. (Also see Bit and Byte.)
Y
Y: The luminance (brightness) portion of a
component video signal.
Y, R-Y, B-Y (Y, CR, CB): A set of color
component video signals with separate
luminance and chrominance.