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  2. libjpeg - Wikipedia

    en.wikipedia.org/wiki/Libjpeg

    In 2019, libjpeg-turbo became the ISO and ITU endorsed reference implementation for the JPEG format. [14] In April 2024, Google introduced Jpegli, a new JPEG coding library that offers enhanced capabilities and a 35% compression ratio improvement at high quality compression settings, while the coding speed is comparable with MozJPEG. [15]

  3. Lossless compression - Wikipedia

    en.wikipedia.org/wiki/Lossless_compression

    Most lossless compression programs do two things in sequence: the first step generates a statistical model for the input data, and the second step uses this model to map input data to bit sequences in such a way that "probable" (i.e. frequently encountered) data will produce shorter output than "improbable" data.

  4. Lempel–Ziv–Markov chain algorithm - Wikipedia

    en.wikipedia.org/wiki/Lempel–Ziv–Markov_chain...

    LZMA2 compression, which is an improved version of LZMA, [13] is now the default compression method for the .7z format, starting with version 9.30 on October 26, 2012. [ 14 ] The reference open source LZMA compression library was originally written in C++ but has been ported to ANSI C , C# , and Java . [ 11 ]

  5. Comparison of file archivers - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_file_archivers

    0.5.4.23 [33] 2024-02-29 Inactive GPL-2.0-or-later No cost ZipGenius: Matteo Riso of M.Dev Software 2003-05 Windows Active Proprietary No cost ZPAQ: Matt Mahoney 2009-03 Cross-platform 7.15 [34] 2016-09-22 Active Public domain MIT [35] No cost File archivers Developer Initial release Platform Latest release version Latest release date Status ...

  6. Chroma subsampling - Wikipedia

    en.wikipedia.org/wiki/Chroma_subsampling

    In JPEG, 4:4:2 and 4:2:1 half the vertical resolution of Cb compared to 4:4:4 and 4:4:0. [19] In another version of 4:2:1, Cb horizontal resolution is half that of Cr (and a quarter of the horizontal resolution of Y). 4:1:0.5 or 4:1:0.25 are variants of 4:1:0 with reduced horizontal resolution on Cb, similar to VHS quality.

  7. The Overdue, Under-Told Story Of The Clitoris

    projects.huffingtonpost.com/cliteracy/intro

    From ancient history to the modern day, the clitoris has been discredited, dismissed and deleted -- and women's pleasure has often been left out of the conversation entirely. Now, an underground art movement led by artist Sophia Wallace is emerging across the globe to challenge the lies, question the myths and rewrite the rules around sex and the female body.