MULTIMEDIA AND QUALITY OF SERVICE
COMPRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What does Lossy Compression do to files? (4-6)
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Increases the file size and keeps the same quality
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Eliminates no information at all
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Decreases the file size and keeps the same quality
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Eliminates unnecessary information in a file to reduce file size
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Explanation:
Detailed explanation-1: -Lossy compression reduces a file by permanently eliminating certain information, especially redundant information. When the file is uncompressed, some of the original information is not there, although the user may not notice it.
Detailed explanation-2: -Lossy compression reduces bits by removing unnecessary or less important information. Typically, a device that performs data compression is referred to as an encoder, and one that performs the reversal of the process (decompression) as a decoder.
Detailed explanation-3: -Explanation: For the lossy compression, the information can be thrown away and still be acceptable.
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