data compression
Digital space saving
Data compression is the process of encoding information using fewer bits than the original representation.
Lossless compression preserves all data exactly—essential for text files and software.
Lossy compression discards some information for greater size reduction, acceptable for images, audio, and video where slight degradation goes unnoticed: JPEG uses lossy compression; PNG uses lossless.
Compression makes storage and transmission more efficient.
Comparative numerical relation
- bitrateData transfer speed
- throughputProcessing rate over time
- bandwidthData transmission capacity
- overheadLocated directly above
efficiency · speed · latency · entropy · redundancy · savings · reduction · optimization
Lossy photo compression standard
- MPEGAudiovisual compression protocol
- MP3Lossy audio compression standard
- AACSound compression format
- H.264Video compression standard
WebP · quantization · psychoacoustics · perceptual · artifact · blockiness · banding · degradation
Lossless web graphics format
- FLACLossless audio compression format
- ZIPPostal routing number
- GIFAnimated image format
- TIFFRaster graphics specification
exact · reversible · integrity · reconstruction · archival · checksum · verification · entropy
Stored historical records
- backupStored duplicate for recovery
- capacityMaximum amount containable
- cloudAtmospheric water vapor mass
- databaseOrganized digital information collection
file size · footprint · repository · server · transmission · streaming · download · upload
ratio
Comparative numerical relation
- bitrateData transfer speed
- throughputProcessing rate over time
- bandwidthData transmission capacity
overhead · efficiency · speed · latency · entropy · redundancy · savings · reduction · optimization · scalability
JPEG
Lossy photo compression standard
H.264 · WebP · quantization · psychoacoustics · perceptual · artifact · blockiness · banding · degradation · bitrate
PNG
Lossless web graphics format
TIFF · exact · reversible · integrity · reconstruction · archival · checksum · verification · entropy · redundancy
archive
Stored historical records
- backupStored duplicate for recovery
- capacityMaximum amount containable
- cloudAtmospheric water vapor mass
database · file size · footprint · repository · server · transmission · streaming · download · upload · payload
ZIP
Postal routing number
cab · archive · container · file extension · packaging · extract · unzip · inflate · WinZip · WinRAR
Delta
Alluvial formation at mouth
- DCTLossy compression algorithm basis
- dimensionality reductionPCA, eigenvalues, eigenvector, loading, component
- applied mathlinear programming, differential equations, statistical methods, probability, statistics
- compressioncompact, compacting, compaction, squeeze, squeezing
- data processingnormalization, standardization, encoding, scaling, aggregation
- information theoryentropy, bit, bits, information theory, binary digit
- network optimizationload balancing, throughput, CDN, caching, queue management
data compressiondecompression
Reduction of pressure
unzipping · expansion · uncompression · bloating · unpacking
data, compress, decompress, compression, compressed, compressing, compressible, decompression, compressor