{"id":42871,"date":"2024-04-17T13:04:01","date_gmt":"2024-04-17T17:04:01","guid":{"rendered":"https:\/\/mjtsai.com\/blog\/?p=42871"},"modified":"2024-04-17T13:04:01","modified_gmt":"2024-04-17T17:04:01","slug":"jpegli","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2024\/04\/17\/jpegli\/","title":{"rendered":"Jpegli"},"content":{"rendered":"<p><a href=\"https:\/\/opensource.googleblog.com\/2024\/04\/introducing-jpegli-new-jpeg-coding-library.html\">Google<\/a> (via <a href=\"https:\/\/news.ycombinator.com\/item?id=39920644\">Hacker News<\/a>):<\/p>\n<blockquote cite=\"https:\/\/opensource.googleblog.com\/2024\/04\/introducing-jpegli-new-jpeg-coding-library.html\"><p>To improve on this, we are introducing <a href=\"https:\/\/github.com\/libjxl\/libjxl\/tree\/main\/lib\/jpegli\">Jpegli<\/a>, an advanced JPEG coding library that maintains high backward compatibility while offering enhanced capabilities and a 35% compression ratio improvement at high quality compression settings.<\/p><p>[&#8230;]<\/p><p>When images are compressed or decompressed through Jpegli, more precise and psychovisually effective computations are performed and images will look clearer and have fewer observable artifacts.<\/p><p>[&#8230;]<\/p><p>While improving on image quality\/compression density ratio, Jpegli&rsquo;s coding speed is comparable to traditional approaches, such as libjpeg-turbo and MozJPEG.<\/p><p>[&#8230;]<\/p><p>Jpegli can be encoded with 10+ bits per component. Traditional JPEG coding solutions offer only 8 bit per component dynamics causing visible banding artifacts in slow gradients. Jpegli&rsquo;s 10+ bits coding happens in the original 8-bit formalism and the resulting images are fully interoperable with 8-bit viewers. 10+ bit dynamics are available as an API extension and application code changes are needed to benefit from it.<\/p><\/blockquote>\n\n<p>Previously:<\/p>\n<ul>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2017\/03\/16\/guetzli-a-new-open-source-jpeg-encoder\/\">Guetzli: A New Open Source JPEG Encoder<\/a><\/li>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2016\/07\/15\/lepton-image-compression\/\">Lepton Image Compression<\/a><\/li>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2015\/09\/23\/brotli\/\">Brotli<\/a><\/li>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2014\/11\/25\/jpeg-image-compression\/\">JPEG Image Compression<\/a><\/li>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2013\/02\/28\/zopfli\/\">Zopfli<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Google (via Hacker News): To improve on this, we are introducing Jpegli, an advanced JPEG coding library that maintains high backward compatibility while offering enhanced capabilities and a 35% compression ratio improvement at high quality compression settings.[&#8230;]When images are compressed or decompressed through Jpegli, more precise and psychovisually effective computations are performed and images will [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"2024-04-17T17:04:04Z","apple_news_api_id":"65ae64ae-346b-4083-82d2-89520ea6d55b","apple_news_api_modified_at":"2024-04-17T17:04:04Z","apple_news_api_revision":"AAAAAAAAAAD\/\/\/\/\/\/\/\/\/\/w==","apple_news_api_share_url":"https:\/\/apple.news\/AZa5krjRrQIOC0olSDqbVWw","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[2],"tags":[289,566,357,51,34,177,74,71],"class_list":["post-42871","post","type-post","status-publish","format-standard","hentry","category-technology","tag-algorithm","tag-color","tag-compression","tag-google","tag-graphicdesign","tag-jpeg","tag-opensource","tag-programming"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/42871","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=42871"}],"version-history":[{"count":1,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/42871\/revisions"}],"predecessor-version":[{"id":42872,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/42871\/revisions\/42872"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=42871"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=42871"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=42871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}