{"id":2882,"date":"2016-07-18T05:49:48","date_gmt":"2016-07-18T09:49:48","guid":{"rendered":"http:\/\/local.brightwhiz\/?p=2882"},"modified":"2016-07-18T05:49:48","modified_gmt":"2016-07-18T09:49:48","slug":"lepton-dropbox-image-compression","status":"publish","type":"post","link":"http:\/\/local.brightwhiz\/lepton-dropbox-image-compression\/","title":{"rendered":"Lepton, Dropbox&#8217;s Image Compression Tool Open Sourced"},"content":{"rendered":"<p>Dropbox has announced the release of open source Lepton. This image compression format has been released under the Apache license.<\/p>\n<p>Lepton is not just a file format for losslessly compressing JPEGs by an average of 22%. It is also doubles as an image compression tool. Dropbox has been using this tool to compress billions of JPEG images hosted on their infrastructure saving them petabytes of storage space.<!--more--><\/p>\n<h2>What Lepton can Do No One Does it Better<\/h2>\n<p>Compressing JPEG files at 5 Megabytes per second, the tool is able to preserve the original file bit-for-bit without any loss of data. It is then able to decode the JPEG compression at a rate of 15 Megabytes per seconds with a minimal footprint of 24 MB.<\/p>\n<p>All this is done using some clever mathematical algorithms working with coefficients that are the result of a reversible transformations. It also leverages kernel-protected, read-only memory for compressed files to guarantee they are immutable during the full verification process.<\/p>\n<p>There is more to the entire process and Dropbox has <a href=\"https:\/\/blogs.dropbox.com\/tech\/2016\/07\/lepton-image-compression-saving-22-losslessly-from-images-at-15mbs\/\" target=\"_blank\" rel=\"noopener\" class=\"broken_link\">this insightful blog post<\/a> that explains Lepton in finer details.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dropbox has announced the release of open source Lepton. This image compression format has been released under the Apache license. Lepton is not just a file format for losslessly compressing&#8230;<\/p>\n","protected":false},"author":1,"featured_media":2883,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[206,309,348,350,433,449,591],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Lepton Image Compression by Dropbox Open Sourced<\/title>\n<meta name=\"description\" content=\"The highly efficient and powerful Lepton image compression by Dropbox has been released as open source to the general public\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/local.brightwhiz\/lepton-dropbox-image-compression\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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