In information theory, data compression, source coding, or bit-rate reduction is the process of encoding information using fewer bits than the original...

Lossless compression is a class of data compression that allows the original data to be perfectly reconstructed from the compressed data with no loss...

Data compression ratio, also known as compression power, is a measurement of the relative reduction in size of data representation produced by a data...

technology, lossy compression or irreversible compression is the class of data compression methods that uses inexact approximations and partial data discarding...

In data compression and psychoacoustics, transparency is the result of lossy data compression accurate enough that the compressed result is perceptually...

caused by the application of lossy compression. Lossy data compression involves discarding some of the media's data so that it becomes small enough to...

Image compression is a type of data compression applied to digital images, to reduce their cost for storage or transmission. Algorithms may take advantage...

asymmetry, in the context of data compression, refer to the time relation between compression and decompression for a given compression algorithm. If an algorithm...

lossless data compression algorithm that is focused on compression and decompression speed. It belongs to the LZ77 family of byte-oriented compression schemes...

year. The compression is performed in real time, as the signals are acquired; it calculates a compression decision before all the compressed data is received...

Deflate (stylized as DEFLATE, and also called Flate) is a lossless data compression file format that uses a combination of LZ77 and Huffman coding. It...

HTTP compression is a capability that can be built into web servers and web clients to improve transfer speed and bandwidth utilization. HTTP data is compressed...

engine Compression (geology) Compression or compressive strength Data compression, reducing the data required for information Audio compression (data), reducing...

Fractal compression is a lossy compression method for digital images, based on fractals. The method is best suited for textures and natural images, relying...

In data compression, a universal code for integers is a prefix code that maps the positive integers onto binary codewords, with the additional property...

Lempel–Ziv–Welch (LZW) is a universal lossless data compression algorithm created by Abraham Lempel, Jacob Ziv, and Terry Welch. It was published by Welch...

Smart Data Compression is a compressed GIS dataset format developed by ESRI. It stores all types of feature data and attribute information together as...

image compression algorithms (e.g. JPEG), S3TC's fixed-rate data compression coupled with the single memory access (cf. Color Cell Compression and some...

method of lossy compression for digital images, particularly for those images produced by digital photography. The degree of compression can be adjusted...

drives with compression, the compressibility of the data will affect the capacity.[how?] Tape is characterized by sequential access to data. While tape...

compression a video frame is compressed using different algorithms with different advantages and disadvantages, centered mainly around amount of data...

LZ77 and LZ78 are the two lossless data compression algorithms published in papers by Abraham Lempel and Jacob Ziv in 1977 and 1978. They are also known...

genomic re-sequencing data emphasizes the growing demand for efficient methods for genomic data compression. While standard data compression tools (e.g., zip...

best known), MP3 uses lossy data compression to encode data using inexact approximations and the partial discarding of data. This allows a large reduction...

and compression. A system that predicts the posterior probabilities of a sequence given its entire history can be used for optimal data compression (by...

smallest amount of information required to convey a message, as in data compression. For example, consider the transmission of sequences comprising the...

IANA. Compression-only formats should often be denoted by the media type of the decompressed data, with a content coding indicating the compression format...

GIF images are compressed using the Lempel–Ziv–Welch (LZW) lossless data compression technique to reduce the file size without degrading the visual quality...

was intended as a replacement for LZW and other patent-encumbered data compression algorithms which, at the time, limited the usability of the compress...

particular type of optimal prefix code that is commonly used for lossless data compression. The process of finding or using such a code is Huffman coding, an...