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arXiv · 1908.03565

Committee Draft of JPEG XL Image Coding System

Alexander Rhatushnyak·Jan Wassenberg·Jon Sneyers·Jyrki Alakuijala·Lode Vandevenne·Luca Versari·Robert Obryk·Zoltan Szabadka·Evgenii Kliuchnikov·Iulia-Maria Comsa·Krzysztof Potempa·Martin Bruse·Moritz Firsching·Renata Khasanova·Ruud van Asseldonk·Sami Boukortt·Sebastian Gomez·Thomas Fischbacher
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Abstract

JPEG XL is a practical approach focused on scalable web distribution and efficient compression of high-quality images. It provides various benefits compared to existing image formats: 60% size reduction at equivalent subjective quality; fast, parallelizable decoding and encoding configurations; features such as progressive, lossless, animation, and reversible transcoding of existing JPEG with 22% size reduction; support for high-quality applications including wide gamut, higher resolution/bit depth/dynamic range, and visually lossless coding. The JPEG XL architecture is traditional block-transform coding with upgrades to each component.

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Alexander Rhatushnyak, Jan Wassenberg, Jon Sneyers, Jyrki Alakuijala, Lode Vandevenne, Luca Versari, Robert Obryk, Zoltan Szabadka, Evgenii Kliuchnikov, Iulia-Maria Comsa, Krzysztof Potempa, Martin Bruse, Moritz Firsching, Renata Khasanova, Ruud van Asseldonk, Sami Boukortt, Sebastian Gomez, Thomas Fischbacher. 2019-08-12. Committee Draft of JPEG XL Image Coding System. https://arxiv.org/abs/1908.03565

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