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BKSTS Illustrated Dictionary of Moving Image Technology, 4th Edition by Martin Uren

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I

icon: In computers and in equipment labelling, a symbol clearly representing purpose or function.

I-frame: Intra-coded frame. An MPEG compressed picture in a video sequence which takes no account of other frames. It effectively uses JPEG compression only and forms the first picture in an MPEG GOP. See Figure G.5.

igniter: A device to strike a xenon or mercury arc.

image bit map: The digital representation of a graphics display image as a pattern of bits, each bit representing one or more pixels.

image enhancer: A device for improving video picture quality, especially in apparent resolution or tonal reproduction.

image intensifier: A device ...

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