MULTIMEDIA AND QUALITY OF SERVICE
COMPRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The file size becomes significantly (much) smaller
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The file size does not become much smaller than 50%
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Either A or B
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None of the above
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Detailed explanation-1: -Lossy compression algorithms are techniques that reduce file size by discarding the less important information. Nobody likes losing information, but some types of files are so large that there’s just not enough space to keep all the original data, plus we didn’t need all that data in the first place.
Detailed explanation-2: -The biggest benefit of lossy compression is that it significantly reduces the size of the image file. On the other hand, the biggest disadvantage is that this is achieved with some loss of quality-even though, as we explain, it’s almost imperceptible.
Detailed explanation-3: -Joint Photographic Expert Group (JPEG) files are compressed using lossy compression, which may result in the loss of relevant information. Generally, JPEG files are 8-bit color images, so any JPEG originating from a device with a higher bit depth will already be compressed by a reduction in dynamic range and bit depth.