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by compression - Übersetzung nach italienisch
CONCEPT IN COMPUTER DATA COMPRESSION
Asymmetric compression; Symmetric compression
by compression
da compressione
lossy compression
DATA COMPRESSION APPROACH THAT RESULTS IN LOSS OR CHANGE OF SOME DATA
Lossy; Lossy encoding; Lossy data compression; Data compression/lossy; List of lossy compression methods; Irreversible compression
Compressione con danno (compressione di dati grafici che lede parte dell"informazione e la qualità delle immagini)
data compression
![Comparison of [[spectrogram]]s of audio in an uncompressed format and several lossy formats. The lossy spectrograms show [[bandlimiting]] of higher frequencies, a common technique associated with lossy audio compression.](https://commons.wikimedia.org/wiki/Special:FilePath/AudiodatenkompressionManowarThePowerOfThySword.jpg?width=200 "Comparison of [[spectrogram]]s of audio in an uncompressed format and several lossy formats. The lossy spectrograms show [[bandlimiting]] of higher frequencies, a common technique associated with lossy audio compression.")
![[[MP3]], an example of a lossy file format compared to [[WAV]].](https://commons.wikimedia.org/wiki/Special:FilePath/MP3 compression.jpg?width=200 "[[MP3]], an example of a lossy file format compared to [[WAV]].")
![Solidyne 922: The world's first commercial audio bit compression [[sound card]] for PC, 1990](https://commons.wikimedia.org/wiki/Special:FilePath/Placa-audioPC-925.jpg?width=200 "Solidyne 922: The world's first commercial audio bit compression [[sound card]] for PC, 1990")
PROCESS OF ENCODING INFORMATION USING FEWER BITS THAN THE ORIGINAL REPRESENTATION
Multimedia compression; Data compression/multimedia compression; Video compression; Data compression algorithm; Compression algorithm; Uncompression; File compression; Data Compression; Block compression; Spatial compression; Temporal compression; Intelligent Compression; Transparent decompression; Compression algorithms; Datacompression; Source Coding; Bit-rate reduction; File compressing; Digital audio compression; Lossless audio compression; Compression program; Compression utility; Coding techniques; Source coding; Audio data compression; Lossless audio; Perceptual audio coding; Video Compression; Lossless Audio; Negabyte; Sound compression; Audio compression (data); Compression software; Decompression software; Compressed data; Video data compression; Video encoding; Encoding software; Data decompression; Lossy audio compression; Uncompressed; Compressed video; Compressed digital video; Digital video compression; Lossless video compression; Text compression; Genetic compression algorithm; Algorithms for lossless data compression; History of video compression; Perceptual audio coder; Compression techniques; Machine learning and data compression; History of audio compression
concentrazione dei dati
Definition
lossy
<algorithm> A term describing a data compression algorithm
which actually reduces the amount of information in the data,
rather than just the number of bits used to represent that
information. The lost information is usually removed because
it is subjectively less important to the quality of the data
(usually an image or sound) or because it can be recovered
reasonably by interpolation from the remaining data.
MPEG and JPEG are examples of lossy compression
techniques.
Opposite: lossless.
(1995-03-29)
Wikipedia
Data compression symmetry
Symmetry and asymmetry, in the context of data compression, refer to the time relation between compression and decompression for a given compression algorithm.
If an algorithm takes the same time to compress a data archive as it does to decompress it, it is considered symmetrical. Note that compression and decompression, even for a symmetric algorithm, may not be perfectly symmetric in practice, depending on the devices the data is being copied to and from, and other factors such as latency and the fragmentation on the device.
In turn, if the compression and decompression times of an algorithm are vastly different, it is considered asymmetrical.
Beispiele aus Textkorpus für by compression
1. Doctors said the carpal tunnel syndrome is caused by compression of the median nerve, running from the forearm into the hand, at the wrist.
2. Alderton, 24, who was three months pregnant, was asphyxiated and Clennell, 24, was killed by "compression to the neck." Nicholls, 2', was the fifth victim.
3. Alderton, 24, who was three months pregnant, was strangled and Clennell, 24, was killed by "compression to the neck," police said.
4. A medical examiner determined that the death was consistent with asphyxiation caused by compression of the neck and chest, Conservation Officer Mark Farmer said.
5. Anneli Alderton, 24, was strangled and an unidentified woman was killed by "compression to the neck," detectives said as they appealed for help in one of Britain‘s biggest manhunts.