MULTIMEDIA AND QUALITY OF SERVICE
COMPRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which best describes Lossless Compression?
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No information is lost but file size is increased
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There is no loss in information at all after compression
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Files which have the exact same data after compression
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Compression that involves an algorithm
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Explanation:
Detailed explanation-1: -Lossless compression (like PNG) is reversible (no loss in quality); you can reconstruct the original data. It works by removing redundant data. Lossy compression (like JPG) is not fully reversible; you can only reconstruct an approximation of the original data.
Detailed explanation-2: -Lossless compression is a class of data compression that allows the original data to be perfectly reconstructed from the compressed data with no loss of information. Lossless compression is possible because most real-world data exhibits statistical redundancy.
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