{"id":3584,"date":"2025-01-11T02:54:37","date_gmt":"2025-01-10T18:54:37","guid":{"rendered":"https:\/\/www.fengyu-poi.cn\/?p=3584"},"modified":"2025-01-11T03:04:43","modified_gmt":"2025-01-10T19:04:43","slug":"icc%e5%88%86%e4%ba%ab%ef%bc%8c%e7%94%a8%e4%ba%8e%e8%bd%ac%e6%8d%a2rec-2020hlg2%e7%85%a7%e7%89%87","status":"publish","type":"post","link":"http:\/\/www.fengyu-poi.cn\/?p=3584","title":{"rendered":"ICC\u5206\u4eab\uff0c\u7528\u4e8e\u8f6c\u6362Rec.2020+HLG2\u7167\u7247"},"content":{"rendered":"<p>\u9996\u5148\u62ff\u5230\u8fd9\u4e2a\u9700\u6c42\u5413\u5f97\u6211\u53c8\u91cd\u65b0\u53bb\u7d22\u5c3c\u627e\u4e86\u4e00\u4e0b\u8fd9\u51e0\u4e2aHLG\u5230\u5e95\u662f\u4ec0\u4e48\u73a9\u610f\uff0c\u56e0\u4e3a\u603b\u6240\u5468\u77e5HLG\u6709\u4e14\u53ea\u6709\u4e00\u4e2a\u5373ITU-R BT.2100 HLG\uff0c\u6ce8\u610f\u8fd9\u91cc\u63d0\u51faHLG\u66f2\u7ebf\u7684\u5e76\u4e0d\u662fRec.2020\u800c\u662fRec.2100\uff08\u53ee\u53ee\uff0c\u8bf7\u8bb0\u4f4f\u8fd9\u4e2a\u51b7\u77e5\u8bc6\uff0c\u867d\u7136\u6ca1\u5565\u7528\uff09\u3002\u56e0\u4e3aRec.2020\u63d0\u51fa\u7684\u662f\u6211\u4eec\u5e73\u65f6\u6240\u8bf4\u76842020\u8272\u57df\u6807\u51c6\uff0c\u4ee5\u5339\u914d\u8d85\u9ad8\u6e05\u5e7f\u64ad\u7535\u89c6\u7684\u9700\u8981\uff0c\u800c\u5177\u4f53\u7684\u4f20\u9012\u51fd\u6570\u7531Rec.2100\u5b9a\u4e49\u3002<\/p>\n\n\n\n<p>\u6839\u636e\u7d22\u5c3c\u5b98\u65b9\u6240\u8ff0\uff0cHLG2\u53ea\u662f\u8f7b\u5fae\u7684\u9b54\u6539\u4e86\u4e00\u4e0b\u539f\u6709\u7684HLG\u66f2\u7ebf\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u7d22\u6027\u5f53\u4f5c\u6807\u51c6HLG\u66f2\u7ebf\u6765\u5904\u7406\u3002\uff08\u5982\u679c\u6548\u679c\u4e0d\u597d\u8bf7\u602a\u7d22\u5c3c\uff09<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>HLG: Gamma curve for HDR recording. Equivalent to the HDR standard Hybrid Log-Gamma, ITU-R BT.2100.<br>HLG1: Gamma curve for HDR recording. Emphasizes noise reduction. However, shooting is restricted to a narrower dynamic range than with [HLG2] or [HLG3].<br>HLG2: Gamma curve for HDR recording. Provides a balance of dynamic range and noise reduction.<br>HLG3: Gamma curve for HDR recording. Wider dynamic range than [HLG2]. However, noise may increase.<br>[HLG1], [HLG2], and [HLG3] all apply a gamma curve with the same characteristics, but each offers a different balance between dynamic range and noise reduction. Each has a different maximum video output level, as follows: [HLG1]: approx. 87%, [HLG2]: approx. 95%, [HLG3]: approx. 100%.<\/p>\n<\/blockquote>\n\n\n\n<p>\u7b80\u800c\u8a00\u4e4b\uff0c\u9762\u5bf9Rec.2020 HLG2\u7684\u7167\u7247\uff0c\u6211\u4eec\u7684\u5904\u7406\u5c31\u7406\u5e94\u662f\u5f53\u4f5cRec.2020\/BT.2100 HLG (Scene)\u6765\u8f6c\u6362\u4e86\u3002<\/p>\n\n\n\n<p>\u4e0b\u8f7d\u4e4b\u540e\u4f60\u4f1a\u5f97\u5230.cube\u683c\u5f0f\u7684LUT\u6587\u4ef6\uff08\u61d2\u4eba\u4f7f\u7528\uff09\u4ee5\u53ca\u5b89\u88c5\u5728\u7cfb\u7edf\u8272\u5f69\u914d\u7f6e\u5e93\u4e2d\u7684ICC\u683c\u5f0f\u6587\u4ef6\uff0c\u7528\u6237\u53ef\u4ee5\u6839\u636e\u9700\u8981\u4f7f\u7528\u4e24\u6b3e\u6587\u4ef6\u3002\u5176\u4e2dcube\u683c\u5f0f\u7684LUT\u5728\u8fbe\u82ac\u5947\u548cPS\u4e2d\u90fd\u53ef\u4ee5\u4f7f\u7528\u3002<\/p>\n\n\n\n<div class=\"wp-block-file\"><a id=\"wp-block-file--media-418ffce1-c715-415d-995a-4983322af459\" 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aria-describedby=\"wp-block-file--media-418ffce1-c715-415d-995a-4983322af459\">\u4e0b\u8f7d<\/a><\/div>\n\n\n\n<p>\u9700\u8981\u989d\u5916\u6ce8\u610f\u7684\u662f\uff0c\u7531HLG\u8f6c\u6362\u5230sRGB\u672c\u8eab\u662f\u4e00\u4e2aHDR-SDR\u7684\u8fc7\u7a0b\uff0c\u4e0d\u53ef\u907f\u514d\u51fa\u73b0\u52a8\u6001\u8303\u56f4\u51cf\u5c11\u7684\u60c5\u51b5\uff0c\u5176\u4e2d\u6309\u7167Rec.2100\u4e2d\u7684\u6807\u51c6\uff0cHLG\u4e2d\u768475%\u7535\u5e73\uff08203nits\uff09\u5c06\u4f1a\u5bf9\u5e94SDR\u7684100%\u7535\u5e73\uff08100nits\uff09\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0cHLG\u7f16\u7801\u8d85\u8fc775%\u7684\u90e8\u5206\u4e3aSDR\u4e0d\u53ef\u518d\u73b0\u7684\u8303\u56f4\uff0c\u5373\u51fa\u73b0\u8fc7\u66dd<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><noscript><img decoding=\"async\" width=\"693\" height=\"197\" src=\"https:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2025\/01\/image.png\" alt class=\"wp-image-3589\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2025\/01\/image.png 693w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2025\/01\/image-300x85.png 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2025\/01\/image-400x114.png 400w\" sizes=\"(max-width: 693px) 100vw, 693px\"><\/noscript><img decoding=\"async\" width=\"693\" height=\"197\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20693%20197%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-3589 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20693%20197%22%3E%3C%2Fsvg%3E 693w\" sizes=\"(max-width: 693px) 100vw, 693px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2025\/01\/image.png 693w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2025\/01\/image-300x85.png 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2025\/01\/image-400x114.png 400w\" data-src=\"https:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2025\/01\/image.png\"><figcaption class=\"wp-element-caption\"><strong>ITU-R BT.2408<\/strong>\u4e2d\u7684\u5efa\u8bae<\/figcaption><\/figure>\n\n\n\n<p>HDR\u7684\u65e9\u671f\u6709\u4e9bHLG\u4ea7\u54c1\u53c2\u8003\u767d\u662f50%\u7535\u5e73\uff0cBT.2408\u7edf\u4e00\u53c2\u8003\u767d\u4e3a75%HLG\uff0c\u5373100%SDR\u52a8\u6001\u3002\u7531\u4e8eHLG\u4e3a\u76f8\u5bf9\u4eae\u5ea6\u7cfb\u7edf\uff0c\u56e0\u6b64\u5f5375%HLG\u5bf9\u5e94100nit\u53c2\u8003\u767d\u65f6\uff0c\u5bf9\u5e94\u6700\u5927\u4eae\u5ea6\u4e3a600nit\uff0c\u800c\u6700\u5927\u4eae\u5ea61000nit\u5bf9\u5e94203nit\u53c2\u8003\u767d\u3002\u8fd9\u662fSDR\u548cHDR\u7cfb\u7edf\u4e4b\u95f4\u7684\u5206\u754c\u7ebf\u3002\u672cLUT\u662f\u7b26\u5408BT2408\u8f6c\u6362\u6807\u51c6\u800c\u8bbe\u8ba1\u7684\uff0c\u662f\u7cbe\u786e\u7684\uff0c\u56e0\u6b64\u4f7f\u7528\u4e4b\u540e\u8d85\u8fc775%HLG\u7684\u90e8\u5206\u4f1a\u88ab\u88c1\u5207\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u53ef\u4ee5\u5728LUT\u4e2d\u4f7f\u7528\u8f6f\u88c1\u5207\u7684\u65b9\u5f0f\uff0c\u6216\u8005\u5728\u8c03\u8272\u5f00\u59cb\u4e4b\u524d\u5148\u624b\u5de5\u63a7\u5236\u9ad8\u5149\u90e8\u5206\u3002\u4f46\u4e3a\u4e86\u628a\u6240\u6709\u7684\u9ad8\u5149\u90e8\u5206\u51b3\u5b9a\u6743\u5c3d\u53ef\u80fd\u7559\u7ed9\u521b\u4f5c\u8005\uff0c\u6211\u4eec\u5728\u8bbe\u8ba1LUT\u7684\u65f6\u5019\uff0c\u6ca1\u6709\u91c7\u7528\u8f6f\u88c1\u5207\uff0c\u800c\u662f\u76f4\u63a5\u5bf9\u539f\u59cb\u56fe\u50cf\u964d\u4f4e1\u6863\u66dd\u5149\uff0c\u518d\u4f7f\u7528HLG-sRGB\u7684\u8f6c\u6362\uff0c\u8fd9\u6837\u4e00\u6765\u53ef\u4ee5\u6362\u53d6\u4e00\u6863\u9ad8\u5149\u52a8\u6001\u8303\u56f4\u7684\u540c\u65f6\uff0c\u6574\u4f53\u89c6\u89c9\u4e0a\u7684\u89c2\u611f\u662f\u76f8\u5bf9\u5e73\u8861\u7684\uff0c\u540c\u65f6\u7528\u6237\u53ef\u4ee5\u81ea\u884c\u51b3\u5b9a\u9ad8\u5149\u90e8\u5206\u7684\u5904\u7406\u3002<\/p>\n\n\n\n<p>\u53cb\u60c5\u63d0\u9192\uff0c\u7528\u6237\u7684\u9ad8\u5149\u63a7\u5236\u9700\u8981\u5728\u5e94\u7528LUT\u4e4b\u524d\u5b8c\u6210\uff0c\u5426\u5219LUT\u88c1\u5207\u6389\u7684\u7ec6\u8282\u5c31\u627e\u4e0d\u56de\u6765\u4e86\uff01<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148\u62ff\u5230\u8fd9\u4e2a\u9700\u6c42\u5413\u5f97\u6211\u53c8\u91cd\u65b0\u53bb\u7d22\u5c3c\u627e\u4e86\u4e00\u4e0b\u8fd9\u51e0\u4e2aHLG\u5230\u5e95\u662f\u4ec0\u4e48\u73a9\u610f\uff0c\u56e0\u4e3a\u603b\u6240\u5468\u77e5HLG\u6709\u4e14\u53ea\u6709\u4e00\u4e2a\u5373ITU-&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":3604,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_s2mail":"yes","footnotes":""},"categories":[14],"tags":[],"class_list":["post-3584","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dimg"],"_links":{"self":[{"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/posts\/3584","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3584"}],"version-history":[{"count":16,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/posts\/3584\/revisions"}],"predecessor-version":[{"id":3602,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/posts\/3584\/revisions\/3602"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/media\/3604"}],"wp:attachment":[{"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3584"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3584"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}