{"id":25019,"date":"2019-04-16T15:48:32","date_gmt":"2019-04-16T19:48:32","guid":{"rendered":"https:\/\/mjtsai.com\/blog\/?p=25019"},"modified":"2019-04-16T15:48:32","modified_gmt":"2019-04-16T19:48:32","slug":"core-image-filter-reference","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2019\/04\/16\/core-image-filter-reference\/","title":{"rendered":"Core Image Filter Reference"},"content":{"rendered":"<p><a href=\"https:\/\/noahgilmore.com\/blog\/cifilterio\/\">Noah Gilmore<\/a> (via <a href=\"https:\/\/twitter.com\/warpling\/status\/1117556249330163715\">Ryan McLeod<\/a>):<\/p>\n<blockquote cite=\"https:\/\/noahgilmore.com\/blog\/cifilterio\/\"><p>CIFilter.io is a project I&rsquo;ve been working on for the last few months, and today it&rsquo;s <a href=\"https:\/\/github.com\/noahsark769\/cifilter.io\/\">open source<\/a>. It has two parts:<\/p><ol><li>A website, <a href=\"https:\/\/cifilter.io\">https:\/\/cifilter.io<\/a>, which lists all the available <a href=\"https:\/\/developer.apple.com\/documentation\/coreimage\/cifilter\">CIFilters<\/a>, their information and examples of applying them<\/li><li><a href=\"https:\/\/itunes.apple.com\/us\/app\/cifilter-io\/id1457458557?mt=8\">An app<\/a> which allows you to apply each CIFilter to various inputs, tune their parameters, and apply them to camera and photo library images<\/li><\/ol><p>[&#8230;]<\/p><p>Apple has <a href=\"https:\/\/developer.apple.com\/library\/archive\/documentation\/GraphicsImaging\/Reference\/CoreImageFilterReference\/index.html#\/\/apple_ref\/doc\/uid\/TP40004346\">a page<\/a> listing about 85% of the available filters, but it&rsquo;s &ldquo;no longer being updated&rdquo;, and no new filters which were made available in iOS 10, 11, or 12 are listed there. If you Google <code>CIThermal<\/code>, for example, most of what you&rsquo;ll find is iOS header dumps.<\/p>\n<p>For the filters which are listed, many have incomplete documentation - for example, the <code>inputSharpness<\/code> parameter to <a href=\"https:\/\/cifilter.io#CICheckerboardGenerator\">CICheckerboardGenerator<\/a> says[&#8230;] but doesn&rsquo;t tell you what the parameter actually does. The examples on this page are also limited - for example, <a href=\"https:\/\/cifilter.io#CISourceOutCompositing\">CISourceOutCompositing<\/a> takes an <code>inputImage<\/code> and a <code>backgroundImage<\/code>. The page shows two images being composited, but doesn&rsquo;t specify which image is which[&#8230;]<\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"<p>Noah Gilmore (via Ryan McLeod): CIFilter.io is a project I&rsquo;ve been working on for the last few months, and today it&rsquo;s open source. It has two parts:A website, https:\/\/cifilter.io, which lists all the available CIFilters, their information and examples of applying themAn app which allows you to apply each CIFilter to various inputs, tune their [&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":"2019-04-16T19:48:35Z","apple_news_api_id":"0c4d890c-469b-4dc3-b87c-8fb169be99aa","apple_news_api_modified_at":"2019-04-16T19:48:36Z","apple_news_api_revision":"AAAAAAAAAAD\/\/\/\/\/\/\/\/\/\/w==","apple_news_api_share_url":"https:\/\/apple.news\/ADE2JDEabTcO4fI-xab6Zqg","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":[220,164,619,31,1610,30,1609,71],"class_list":["post-25019","post","type-post","status-publish","format-standard","hentry","category-programming-category","tag-coreimage","tag-documentation","tag-graphics","tag-ios","tag-ios-12","tag-mac","tag-macos-10-14","tag-programming"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/25019","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=25019"}],"version-history":[{"count":1,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/25019\/revisions"}],"predecessor-version":[{"id":25020,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/25019\/revisions\/25020"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=25019"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=25019"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=25019"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}