MULTIMEDIA AND QUALITY OF SERVICE
COMPRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When is Run Length Encoding used?
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When we want to compress patterns of data
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When we want to decompress patterns of data
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When we want to encode running videos
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None of the above
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Explanation:
Detailed explanation-1: -Run-length encoding (RLE) is a lossless compression method where sequences that display redundant data are stored as a single data value representing the repeated block and how many times it appears in the image. Later, during decompression, the image can be reconstructed exactly from this information.
Detailed explanation-2: -This is most efficient on data that contains many such runs, for example, simple graphic images such as icons, line drawings, Conway’s Game of Life, and animations. For files that do not have many runs, RLE could increase the file size.
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