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 of the following is true of lossy and lossless compression techniques?
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Lossy compression techniques are no longer commonly used.
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Lossless compression is fully reversible, meaning the original file can be recreated bit for bit.
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Lossless compression throws away unimportant details that a human being will likely be unable to detect.
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Lossy compression is only possible on files that are at least one gigabyte in size before compression.
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Explanation:
Detailed explanation-1: -Which of the following is true of lossy and lossless compression techniques? Both lossy and lossless compression techniques will result in some information being lost from the original file. Neither lossy nor lossless compression can actually reduce the number of bits needed to represent a file.
Detailed explanation-2: -There are two methods of compression – lossy and lossless. Lossy reduces file size by permanently removing some of the original data. Lossless reduces file size by removing unnecessary metadata.
Detailed explanation-3: -Lossless data compression algorithms (such as PNG) are reversible (there is no loss in quality); you can reconstruct the original data.
There is 1 question to complete.