It is a term for a group of technologies that encodes large files to convert them into a smaller file.
What is a data compression ratio?
Data compression ratio is also known as the compression power, used to count the reduction in data-representation size by a data compression algorithm.
Why is data compression an important technique for the
online world?
It is important as it helps compress data to be downloaded/uploaded to anything, from anything.
It is important as it helps compress data to be downloaded/uploaded to anything, from anything.
What is the difference between Lossy and Lossless data
compression?
Lossless compression recreates a compressed file as an identical match to its original form. All lossless compression breaks up a file into smaller pieces, for storage or transmission, later on. It uses compression algorithms which allow it to copy the data exactly while Lossy data retrieves data that may be different from the orginal but is still similar to the original without anyone noticing.
Which method offers the greatest compression ratio?
the
lossy compression is the offers the greatest compression. the rate or a lossy
compression is about 5-6% while the rate of lossless
compression ranges from 50-60%.
Why is human psychology and perception an important factor
in methods of Lossy compression?
It is an important factor as it allows us to get rid of data that no one notices.
It is an important factor as it allows us to get rid of data that no one notices.
Name Lossy file formats for audio, still image and video
format.
Still Image:
Video:
Audio:
MP3 - .mp3
WMA - .wma
Still Image:
DjVu - .djvu .djv
JPEG - .jpg
.jpeg
Video:
MPEG-1 - .mpg
.mpeg .mp2 .mp3 .mpa
MPEG-2 - .mpg
.mpeg .mp2 .mp3 .m2v
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