MULTIMEDIA AND QUALITY OF SERVICE
MULTIMEDIA DATA
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Lossless compression
|
|
|
Lossy compression
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -Lossless compression restores and rebuilds file data in its original form after the file is decompressed. For example, when a picture’s file size is compressed, its quality remains the same. The file can be decompressed to its original quality without any loss of data.
Detailed explanation-2: -6.4. Lossless compression is a compression technique that does not lose any data in the compression process. Lossless compression “packs” data into a smaller file size by using a kind of internal shorthand to signify redundant data.
Detailed explanation-3: -Lossless compression methods are reversible. Examples of lossless compression include GZIP, Brotli, WebP, and PNG, Lossy compression, on the other hand, uses inexact approximations by discarding some data from the original file, making it an irreversible compression method.