MULTIMEDIA AND QUALITY OF SERVICE
COMPRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Run-length encoding ____ choose 3 answers
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is Lossless
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is Lossy
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Can only be used for text
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Records the number of repeats of an individual element
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Works best on compression on images rather than text
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Explanation:
Detailed explanation-1: -Run-length encoding (RLE) is a form of lossless data compression in which runs of data (sequences in which the same data value occurs in many consecutive data elements) are stored as a single data value and count, rather than as the original run. This is most useful on data that contains many such runs.
Detailed explanation-2: -In the other hand RLE is useful when it comes to image compression, because images happen to have long runs pixels with identical colour. we can compress consecutive pixels by only replacing each run with one pixel from it and a counter showing how many items it contains.
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