http://fileformats.archiveteam.org/api.php?action=feedcontributions&feedformat=atom&user=Janwas 2026-04-15T12:34:36Z User contributions MediaWiki 1.19.2 http://fileformats.archiveteam.org/wiki/JPEG_XL 2020-10-12T18:19:27Z

<p>Janwas: Update file format based on reference software, add links</p> <hr /> <div>{{FormatInfo<br /> |formattype=electronic<br /> |subcat=Graphics<br /> |extensions={{ext|jxl}}<br /> |released=2019 (draft)<br /> }}<br /> '''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.<br /> <br /> 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.<br /> <br /> == Identification ==<br /> 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}}.<br /> Codestreams may also be wrapped in an ISOBMFF-based file format ([https://gitlab.com/wg1/jpeg-xl/-/blob/master/tools/box/box.cc implementation]).<br /> <br /> == Specifications ==<br /> * [https://arxiv.org/abs/1908.03565 Committee Draft of JPEG XL] (2019-08)<br /> * [https://www.iso.org/standard/77977.html ISO/IEC 18181]<br /> <br /> == Software ==<br /> * [https://gitlab.com/wg1/jpeg-xl Open-source reference software]<br /> <br /> == Links ==<br /> * [https://jpeg.org/jpegxl/ Overview of JPEG XL]<br /> * [https://jpeg.org/items/20171107_cfp_jpeg_xl.html Next-Generation Image Compression (JPEG XL) Draft Call for Proposals] (2017-11)<br /> * [https://jpeg.org/items/20180221_cfp_jpeg_xl.html Revised Draft Call for Proposals] (2018-02)<br /> * [https://jpeg.org/items/20180423_cfp_jpeg_xl.html Final Call for Proposals] (2018-04)<br /> * [http://gigazine.net/gsc_news/en/20170815-jpeg-xl-call-for-draft/ Gigazine article] (2017-08-15)<br /> * [https://www.slideshare.net/cloudinarymarketing/imagecon-2019-jon-sneyer Slides from Imagecon 2019 presentation]<br /> * [https://www.spiedigitallibrary.org/proceedings/Download?fullDOI=10.1117%2F12.2529237 Introductory paper (open access)]<br /> * [https://doi.org/10.1117/12.2556264 Benchmarking JPEG XL image compression]<br /> * [https://cloudinary.com/blog/how_jpeg_xl_compares_to_other_image_codecs How JPEG XL Compares to Other Image Codecs] (2020-05-26)<br /> <br /> [[Category:JPEG (organization)]]<br /> [[Category:JPEG]]</div>

Janwas http://fileformats.archiveteam.org/wiki/JPEG_XL 2020-01-09T10:29:54Z

<p>Janwas: Add reference software and paper</p> <hr /> <div>{{FormatInfo<br /> |formattype=electronic<br /> |subcat=Graphics<br /> |extensions={{ext|jxl}}<br /> |released=2019 (draft)<br /> }}<br /> '''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.<br /> <br /> == Identification ==<br /> Based on draft information, JPEG XL is technically defined as a union of three different top-level formats:<br /> * Normal JPEG XL files, which start with bytes {{magic|ff 0a}}.<br /> * Lossless JPEG1 recompressed files, which start with {{magic|0a 04 42 d2 d5 4e}} (see [[Brunsli]]).<br /> * Most standard [[JPEG]] files, which start with {{magic|ff d8 ff e0}}.<br /> <br /> == Links ==<br /> * [https://jpeg.org/jpegxl/ Overview of JPEG XL]<br /> * [https://jpeg.org/items/20171107_cfp_jpeg_xl.html Next-Generation Image Compression (JPEG XL) Draft Call for Proposals] (2017-11)<br /> * [https://jpeg.org/items/20180221_cfp_jpeg_xl.html Revised Draft Call for Proposals] (2018-02)<br /> * [https://jpeg.org/items/20180423_cfp_jpeg_xl.html Final Call for Proposals] (2018-04)<br /> * [http://gigazine.net/gsc_news/en/20170815-jpeg-xl-call-for-draft/ Gigazine article] (2017-08-15)<br /> * [https://arxiv.org/abs/1908.03565 Committee Draft of JPEG XL] (2019-08)<br /> * [https://www.iso.org/standard/77977.html ISO/IEC 18181]<br /> * [https://www.slideshare.net/cloudinarymarketing/imagecon-2019-jon-sneyer Slides from Imagecon 2019 presentation]<br /> * [https://google.github.io/brunsli/ JPEG ↔ JPEG XL transcoder]<br /> * [https://gitlab.com/wg1/jpeg-xl Open-source reference software]<br /> * [https://www.spiedigitallibrary.org/proceedings/Download?fullDOI=10.1117%2F12.2529237 Introductory paper (open access)]<br /> <br /> [[Category:JPEG (organization)]]<br /> [[Category:JPEG]]</div>

Janwas http://fileformats.archiveteam.org/wiki/JPEG_XL 2019-08-20T13:10:30Z

<p>Janwas: Added Committee Draft</p> <hr /> <div>{{FormatInfo<br /> |formattype=electronic<br /> |subcat=Graphics<br /> }}<br /> '''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.<br /> <br /> == Links ==<br /> * [https://jpeg.org/items/20171107_cfp_jpeg_xl.html Next-Generation Image Compression (JPEG XL) Draft Call for Proposals] (2017-11)<br /> * [https://jpeg.org/items/20180221_cfp_jpeg_xl.html Revised Draft Call for Proposals] (2018-02)<br /> * [https://jpeg.org/items/20180423_cfp_jpeg_xl.html Final Call for Proposals] (2018-04)<br /> * [http://gigazine.net/gsc_news/en/20170815-jpeg-xl-call-for-draft/ Gigazine article] (2017-08-15)<br /> * [https://arxiv.org/abs/1908.03565 Committee Draft of JPEG XL] (2019-08)</div>

Janwas