JPEG XL

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'''JPEG XL''' is a plan to develop a compressed image format and/or file format that will be yet another attempt to be the next [[JPEG]]. It was first announced around 2017-08.
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'''JPEG XL''' is a work-in-progress compressed image format and/or file format that is yet another attempt to be the next [[JPEG]]. It was first announced around 2017-08. It is expected to be published as ISO/IEC 18181.
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JPEG XL is expected to be based in part on [[FUIF]] and [[PIK]] formats.[https://github.com/cloudinary/fuif/blob/3ed48249a9cbe68740aa4ea58098ab0cd4b87eaa/README.md] The standard also supports recompression of JPEG files with bit-exact reconstruction.
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== Identification ==
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Based on the [https://gitlab.com/wg1/jpeg-xl/-/blob/master/jxl/dec_file.cc reference implementation], JPEG XL codestreams start with bytes {{magic|ff 0a}}.
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Codestreams may also be wrapped in an ISOBMFF-based file format ([https://gitlab.com/wg1/jpeg-xl/-/blob/master/tools/box/box.cc implementation]).
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== Specifications ==
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* [https://arxiv.org/abs/1908.03565 Committee Draft of JPEG XL] (2019-08)
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* [https://www.iso.org/standard/77977.html ISO/IEC 18181]
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== Software ==
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* [https://gitlab.com/wg1/jpeg-xl Open-source reference software]
  
 
== Links ==
 
== Links ==
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* [https://jpeg.org/jpegxl/ Overview of JPEG XL]
 
* [https://jpeg.org/items/20171107_cfp_jpeg_xl.html Next-Generation Image Compression (JPEG XL) Draft Call for Proposals] (2017-11)
 
* [https://jpeg.org/items/20171107_cfp_jpeg_xl.html Next-Generation Image Compression (JPEG XL) Draft Call for Proposals] (2017-11)
 
* [https://jpeg.org/items/20180221_cfp_jpeg_xl.html Revised Draft Call for Proposals] (2018-02)
 
* [https://jpeg.org/items/20180221_cfp_jpeg_xl.html Revised Draft Call for Proposals] (2018-02)
 
* [https://jpeg.org/items/20180423_cfp_jpeg_xl.html Final Call for Proposals] (2018-04)
 
* [https://jpeg.org/items/20180423_cfp_jpeg_xl.html Final Call for Proposals] (2018-04)
 
* [http://gigazine.net/gsc_news/en/20170815-jpeg-xl-call-for-draft/ Gigazine article] (2017-08-15)
 
* [http://gigazine.net/gsc_news/en/20170815-jpeg-xl-call-for-draft/ Gigazine article] (2017-08-15)
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* [https://www.slideshare.net/cloudinarymarketing/imagecon-2019-jon-sneyer Slides from Imagecon 2019 presentation]
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* [https://www.spiedigitallibrary.org/proceedings/Download?fullDOI=10.1117%2F12.2529237 Introductory paper (open access)]
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* [https://doi.org/10.1117/12.2556264 Benchmarking JPEG XL image compression]
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* [https://cloudinary.com/blog/how_jpeg_xl_compares_to_other_image_codecs How JPEG XL Compares to Other Image Codecs] (2020-05-26)
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[[Category:JPEG (organization)]]
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[[Category:JPEG]]
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[[Category:Box file format]]

Revision as of 14:26, 18 October 2020

File Format
Name JPEG XL
Ontology
Extension(s) .jxl
Released 2019 (draft)

JPEG XL is a work-in-progress compressed image format and/or file format that is yet another attempt to be the next JPEG. It was first announced around 2017-08. It is expected to be published as ISO/IEC 18181.

JPEG XL is expected to be based in part on FUIF and PIK formats.[1] The standard also supports recompression of JPEG files with bit-exact reconstruction.

Contents

Identification

Based on the reference implementation, JPEG XL codestreams start with bytes ff 0a. Codestreams may also be wrapped in an ISOBMFF-based file format (implementation).

Specifications

Software

Links

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