Y -
Refers to the luminance portion of a
Y/C video signal.
Y/C -
Color
image encoding that separates luminance ((Y) and chrominance (C)
signals.
YIQ -
Image
encoding scheme similar to YUV that selects the direction of the two color
axes, I and Q, to align with natural images. As an average, the I signal
bears much more information than the Q signal. (YIQ is used in the NTSC
video standard.)
YUV -
Color
image encoding scheme that separates luminance (Y) and two color signals:
red minus Y (U), and blue minus Y (V). Transmission of YUV can take advantage
of the eye's greater sensitivity to luminance detail than color detail.
zoom in -
An optical
camera change where the camera appears to approach the subject it is shooting.
zooming -
The progressive
scaling of an image in order to give the visual impression of movement of
all or part of a display group toward or away from an observer.
zoom
out -
An optical camera change where the camera
appears to back up from the subject it is shooting.
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