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Key frame

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This is an old revision of this page, as edited by Koyaanis Qatsi (talk | contribs) at 03:27, 22 September 2002 (eh. This isn't very clear, maybe). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

In animation, a key frame is a frame in an animated sequence of frames which was drawn or otherwise constructed directly by the user rather than generated automatically, e.g. by tweening.

In video compression, a key frame or I frame is a frame encoded without reference to any images in another frame.

In video editing, a key frame is a frame used to indicate the beginning or end of a change made to the signal. For instance, a key frame could be set to indicate the point at which audio will have faded up or down to a certain level.

This article (or an earlier version of it) contains material from FOLDOC, used with permission.

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