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Original file (SVG file, nominally 889 × 307 pixels, file size: 3 KB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Since images contain thousands of pixels, each with multiple channels, channels are usually encoded in as few bits as possible. Typical values are 8 bits per channel or 16 bits per channel. Indexed color effectively gets rid of channels altogether to get, for instance, 3 channels into 8 bits or 16 bits.
The largest size has 1080 lines high and 1920 pixels wide. 1080-line video is actually encoded with 1920×1088 pixel frames, but the last eight lines are discarded prior to display. This is due to a restriction of the MPEG-2 video format, which requires the height of the picture in luma samples (i.e. pixels) to be divisible by 16.
SDTV resolution by nation: for historical reasons, different countries use either 480i or 576i as their standard-definition picture format. Standard-definition television (SDTV; also standard definition or SD) is a television system that uses a resolution that is not considered to be either high or enhanced definition. [1]
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Within the context of internet television, a channel might be 1) a broadcast or cable TV station/network (e.g. CBS or CNN) which posts videos or live streams to its website or a video hosting website, 2) a user or group who live stream or upload videos to a video hosting website such as YouTube or Twitch (e.g.
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