LZJB

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LZJB is a lossless data compression algorithm invented by Jeff Bonwick to compress crash dumps and data in ZFS. It includes a number of improvements to the LZRW1 algorithm, a member of the Lempel-Ziv family of compression algorithms.

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Data compression methods

Information theory

Entropy encoding	Arithmetic Golomb Huffman Adaptive Canonical Modified Range Shannon–Fano Shannon–Fano–Elias Tunstall Universal Exp-Golomb Fibonacci Gamma Levenstein

Dictionary	Byte pair encoding DEFLATE Lempel–Ziv LZ77 and LZ78 LZJB LZMA LZO LZRW LZS LZSS LZT LZW LZWL LZX ROLZ Statistical Lempel Ziv RLE

Others	BWT CTW Delta DMC PPM

Theory	Companding Convolution Dynamic range Latency Nyquist–Shannon theorem Sampling Sound quality

Audio codec parts	A-law μ-law ACELP ADPCM CELP DPCM Fourier transform LPC LAR LSP MDCT Psychoacoustic model WLPC

Others	Bit rate ABR CBR VBR Speech coding Sub-band coding

Terms	Chroma subsampling Color space Compression artifact Image resolution Macroblock Pixel

Methods	Chain code DCT EZW Fractal KLT LP RLE SPIHT Wavelet

Others	PSNR quality measure Quantization Test images

Terms	Display resolution Frame Frame rate Frame types Interlace Video characteristics Video quality

Video codec parts	DCT Deblocking filter Motion compensation

Others	Bit rate ABR CBR VBR Lossless compressed Uncompressed Video codecs

See Compression formats for formats and Compression software for codecs

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