{"id":6789,"date":"2013-01-08T17:38:52","date_gmt":"2013-01-08T22:38:52","guid":{"rendered":"http:\/\/mjtsai.com\/blog\/?p=6789"},"modified":"2013-01-08T17:38:53","modified_gmt":"2013-01-08T22:38:53","slug":"imageoptim-case-study","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2013\/01\/08\/imageoptim-case-study\/","title":{"rendered":"ImageOptim Case Study"},"content":{"rendered":"<p><a href=\"http:\/\/imageoptim.com\">ImageOptim<\/a> could have <a href=\"http:\/\/imageoptim.com\/tweetbot.html\">reduced the size of Tweetbot&rsquo;s images<\/a> from 26 MB to 9 MB (via <a href=\"https:\/\/twitter.com\/danwood\/status\/288690560133390336\">Dan Wood<\/a>):<\/p>\n<blockquote cite=\"http:\/\/imageoptim.com\/tweetbot.html\"><p>Although Xcode optimisation is assumed to improve decoding speed of PNG images, testing on an actual device disproves that [&#8230;] Xcode-optimized images were significantly slower to display. Decoding speed appears to be correlated to image file size more than anything else (most likely savings on byteswapping are <a href=\"http:\/\/imageoptim.com\/speed-scale.html\">negligible compared to additional disk I\/O<\/a> and extra data to decompress.)<\/p><\/blockquote>","protected":false},"excerpt":{"rendered":"<p>ImageOptim could have reduced the size of Tweetbot&rsquo;s images from 26 MB to 9 MB (via Dan Wood): Although Xcode optimisation is assumed to improve decoding speed of PNG images, testing on an actual device disproves that [&#8230;] Xcode-optimized images were significantly slower to display. Decoding speed appears to be correlated to image file size [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"","apple_news_api_id":"","apple_news_api_modified_at":"","apple_news_api_revision":"","apple_news_api_share_url":"","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":[4],"tags":[75,278,30,32,71],"class_list":["post-6789","post","type-post","status-publish","format-standard","hentry","category-programming-category","tag-developertool","tag-imageoptim","tag-mac","tag-macapp","tag-programming"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/6789","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=6789"}],"version-history":[{"count":1,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/6789\/revisions"}],"predecessor-version":[{"id":6790,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/6789\/revisions\/6790"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=6789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=6789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=6789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}