{"id":1253,"date":"2021-11-24T11:04:09","date_gmt":"2021-11-24T03:04:09","guid":{"rendered":"http:\/\/blog.fengyu-poi.cn:57650\/?p=1253"},"modified":"2022-08-19T22:49:08","modified_gmt":"2022-08-19T14:49:08","slug":"%e5%85%b3%e4%ba%8en-log%e9%82%a3%e7%82%b9%e4%ba%8b","status":"publish","type":"post","link":"http:\/\/www.fengyu-poi.cn\/?p=1253","title":{"rendered":"\u3010\u4e00\u70b9\u70b9\u8272\u5f69\u79d1\u5b66\u3011\u5982\u4f55\u653e\u5fc3\u4f7f\u7528N-Log &#8211; \u5c3c\u5eb7\u66f2\u7ebf\u90a3\u70b9\u4e8b"},"content":{"rendered":"<p>\u6700\u8fd1\u4fee\u6539\u4e8e2021-11-24<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u672c\u6587\u5305\u542b\u4ee5\u4e0b\u5185\u5bb9<\/h2>\n\n\n\n<ol class=\"wp-block-list\"><li>\u4e00\u4e9b\u8bef\u533a<\/li><li>N-Log\u57fa\u672c\u5b9a\u4e49(\u66f2\u7ebf \u8272\u57df\u7279\u6027)<\/li><li>N-Log\u57fa\u672c\u5904\u7406\u6d41\u7a0b<\/li><li>N-Log\u84dd\u8272\u6ea2\u51fa\u95ee\u9898<\/li><li>Input Device Transform - IDT FOR NLOG<\/li><\/ol>\n\n\n\n<div style=\"height:143px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">1.\u5f00\u59cb\u4e4b\u524d - \u4e00\u4e9b\u8bef\u533a<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>N-Log\u662f\u5c3c\u5eb7\u5f00\u53d1\u7684\u8272\u5f69\u7a7a\u95f4<\/p><cite>\u6ce8\u610f\uff01N-Log\u4e0d\u662f\u8272\u5f69\u7a7a\u95f4\u3002<br>\u8981\u5b8c\u6574\u5b9a\u4e49\u4e00\u4e2a\u8272\u5f69\u7a7a\u95f4\uff0c\u6700\u57fa\u672c\u9700\u8981\u4e24\u4e2a\u8981\u7d20\uff0c\u300cGamut\u300d\u300cGamma\u300d<br>Gamut\u662f\u4ec0\u4e48\uff0c\u5176\u5b9e\u5c31\u662f\u6211\u4eec\u5728CIE1931\u8272\u5ea6\u56fe\u4e0a\u770b\u5230\u7684\u90a3\u79cd\u4e09\u89d2\u5f62\uff0c\u6240\u4ee5\u4f60\u5c31\u660e\u767d\u4e86\uff0cGamut\u5c31\u53ef\u4ee5\u7406\u89e3\u4e3a\u8272\u57df\u3002<br>\u800cGamma\uff0c\u4fbf\u662f\u4e00\u6761\u7f16\u7801\u66f2\u7ebf\uff0c\u8868\u793a\u8f93\u5165\u8f93\u51fa\u7684\u4e00\u4e2a1\u7ef4\u5173\u7cfb\u3002<\/cite><\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>N-Log\u80fd\u8ba9\u5c3c\u5eb7\u76f8\u673a\u83b7\u5f97\u66f4\u5927\u7684\u5bbd\u5bb9\u5ea6<\/p><cite>N-Log\u5e76\u4e0d\u662f\u4e00\u4e2a\u6027\u80fd\u6307\u6807\uff0c\u800c\u662f\u4e00\u79cd\u573a\u666f\u4eae\u5ea6\u5982\u4f55\u5bf9\u5e94\u7f16\u7801\u503c\u7684\u5173\u7cfb<\/cite><\/blockquote>\n\n\n\n<div style=\"height:143px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">2.\u57fa\u672c\u5b9a\u4e49<\/h2>\n\n\n\n<p>\u8003\u8651\u5230\u5f88\u591a\u672c\u6587\u7ae0\u4e5f\u4f1a\u6709\u5f88\u591a\u57fa\u7840\u7528\u6237\u9605\u8bfb\uff0c\u56e0\u6b64\u6709\u5fc5\u8981\u5f3a\u8c03Log\u66f2\u7ebf\u672c\u8d28\uff0c\u5728N-Log \u5b98\u65b9\u767d\u76ae\u4e66\u4e2d\u7684\u4ecb\u7ecd\u662f\u8fd9\u6837\u7684<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>N-Log is designed to permit full use of sensor dynamic range in a professional movie workflow. The curve characteristics of N-Log balance shadows and highlights and are optimized for 10-bit movie recording.<\/p><\/blockquote>\n\n\n\n<p>\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5b98\u65b9\u63d0\u5230\u7684\u662f\u201c<span style=\"font-size: revert; color: initial;\">permit full use of sensor dynamic range<\/span>\u201d\uff0c\u800c\u4e0d\u662f\u201cto get more <span style=\"font-size: revert; color: initial;\">dynamic range<\/span>\u201d\uff0c\u610f\u601d\u5df2\u7ecf\u975e\u5e38\u660e\u786e\uff0c\u5373\uff1aN-Log\u7684\u8bbe\u8ba1\u76ee\u7684\u662f\u4e3a\u4e86\u6700\u5927\u5316\u5229\u7528\u4f20\u611f\u5668\u52a8\u6001\u8303\u56f4\u3002<\/p>\n\n\n\n<p>\u4f46\u5373\u4fbf\u8fd9\u6837\u8bf4\uff0c\u4f9d\u7136\u6709\u5927\u91cf\u7528\u6237\u4ee5\u4e3aLog\u753b\u9762\u5c31\u80fd\u8ba9\u76f8\u673a\u83b7\u5f97\u66f4\u591a\u7684\u52a8\u6001\u8303\u56f4\uff0c\u8fd9\u662f\u4e0d\u4e25\u8c28\u7684\u3002<\/p>\n\n\n\n<p>\u7531\u4e8e\u66dd\u5149\u6863\u4f4d(Exposure)\u8fd1\u4f3c\u4e8e\u7ebf\u6027\u5149(Scene Linear)\u6210\u5bf9\u6570\u5173\u7cfb\uff0c\u56e0\u6b64Log(L)\u7684\u4f5c\u7528\u5c31\u662f\u8ba9\u6574\u4e2a\u753b\u9762\u7684\u4e0d\u540c\u66dd\u5149\u533a\u300c\u76f8\u5bf9\u5e73\u5747\u300d\u7684\u5206\u914d\u5230\u6709\u9650\u7684\u7801\u503c\u4e2d(\u4f8b\u59820-1023)\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7f16\u7801<\/h2>\n\n\n\n<p>\u5c06\u573a\u666f\u5149\u8f6c\u6362\u4e3aN-Log\u51fd\u6570\u5982\u4e0b<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">OETF<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>if (y  0.328)\nx = 650 * (y + 0.0075)^(1\/3) \nelse\nx = 150*log(y)+619 \/\/log() is based on Log-e\nend<\/code><\/pre>\n\n\n\n<p>\u5c06N-Log\u7f16\u7801\u8f6c\u6362\u4e3a\u573a\u666f\u5149\u51fd\u6570\u5982\u4e0b<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">EOTF<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>if (x  452)\ny = (x\/650)^3 \u22120.0075 \nelse\ny = exp&#91;(x\u2212619)\/150] \nend\n\/\/y is reflectance<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><noscript><img decoding=\"async\" width=\"2480\" height=\"3509\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/nlog-1.png\" alt class=\"wp-image-1393\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1.png 2480w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1-212x300.png 212w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1-724x1024.png 724w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1-768x1087.png 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1-1086x1536.png 1086w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1-1447x2048.png 1447w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1-400x566.png 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1-940x1330.png 940w\" sizes=\"(max-width: 2480px) 100vw, 2480px\"><\/noscript><img decoding=\"async\" width=\"2480\" height=\"3509\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%202480%203509%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1393 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%202480%203509%22%3E%3C%2Fsvg%3E 2480w\" sizes=\"(max-width: 2480px) 100vw, 2480px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1.png 2480w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1-212x300.png 212w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1-724x1024.png 724w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1-768x1087.png 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1-1086x1536.png 1086w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1-1447x2048.png 1447w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1-400x566.png 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-1-940x1330.png 940w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/nlog-1.png\"><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8272\u57df<\/h3>\n\n\n\n<p>\u4e09\u8272\u57fa\u70b9\u4e0e\u767d\u70b9\u5b9a\u4e49\u5982\u4e0b<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>WP<\/td><td>0.3127<\/td><td>0.3290<\/td><\/tr><tr><td>R<\/td><td>0.708<\/td><td>0.292<\/td><\/tr><tr><td>G<\/td><td>0.170<\/td><td>0.797<\/td><\/tr><tr><td>B<\/td><td>0.131<\/td><td>0.046<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u662f\u4e0d\u662f\u89c9\u5f97\uff0c\u8fd9\u4e2a\u4e09\u8272\u57fa\u5750\u6807\u548c\u67d0\u4e2a\u73b0\u6709\u7684\u6807\u51c6\u8272\u57df\u6709\u70b9\u50cf\u5462\uff1f<\/p>\n\n\n\n<p>\u5bf9\u5566\uff01\u5c31\u662fITU-R BT.2020\uff01\u5927\u540d\u9f0e\u9f0e\u7684Rec.2020\u8272\u57df\uff0c\u8fd9\u4e00\u70b9\u5728\u5b98\u65b9\u6587\u6863\u91cc\u4e5f\u6709\u8bf4\u660e\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>The gamut for N-Log is same as the wide color gamut known as \u201cITU-R BT.2020\u201d.<\/p><\/blockquote>\n\n\n\n<p>\u6839\u636e\u5b98\u65b9\u767d\u76ae\u4e66\uff0cN-Log\u4e0eBT2020\u642d\u914d\u4f7f\u7528\uff08\u8fd9\u91cc\u4e5f\u8bc1\u660e\u4e86N-Log\u672c\u8eab\u5e76\u4e0d\u662f\u4e00\u4e2a\u8272\u5f69\u7a7a\u95f4\uff0c\u800c\u662f\u4e00\u6761Gamma\u66f2\u7ebf\uff0c\u8fd9\u5bb9\u6613\u5728\u7528\u6237\u77e5\u8bc6\u4e0d\u5168\u9762\u7684\u60c5\u51b5\u4e0b\u6df7\u6dc6\uff09<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u767d\u70b9<\/h3>\n\n\n\n<p>N-Log\u4f7f\u7528D65\u767d\u70b9\uff0c\u8fd9\u4e0e\u5176\u4f7f\u7528ITU-R BT.2020\u7684\u8272\u57df\u76f8\u543b\u5408\uff0c\u5373\u53ef\u4ee5\u7406\u89e3\u4e3a Rec.2020 (D65)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u957f\u5565\u6837\uff1f<\/h2>\n\n\n\n<p>N-Log\u8ddf\u5176\u4ed6log\u753b\u9762\u4e00\u6837\uff0c\u4e5f\u662f\u957f\u5f97\u7070\u7070\u7684\u54af<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-1024x576.jpg\" alt class=\"wp-image-1302\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1302 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1.jpg 1920w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-1024x576.jpg\"><\/figure>\n\n\n\n<div style=\"height:143px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">3.N-Log\u57fa\u672c\u5904\u7406\u6d41\u7a0b<\/h2>\n\n\n\n<p>N-log\u4e0e\u6240\u6709\u6444\u5f71\u673a\u7684Log\u4e00\u6837\uff0c\u5904\u7406\u65b9\u5f0f\u5927\u81f4\u53ef\u4ee5\u5206\u4e3a3\u79cd\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\u4f7f\u7528\u624b\u5de5\u8c03\u8272\u8fdb\u884c\u8fd8\u539f<\/li><li>\u4f7f\u7528\u5339\u914d\u7684LUT\uff08\u67e5\u627e\u8868\uff09\u8fdb\u884c\u8fd8\u539f<\/li><li>\u4f7f\u7528\u8272\u5f69\u7ba1\u7406\u7cfb\u7edf\uff08CMS\uff09\u8fdb\u884c\u8fd8\u539f<\/li><\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f7f\u7528\u624b\u5de5\u8c03\u8272\u8fdb\u884c\u8fd8\u539f<\/h3>\n\n\n\n<p>\u6ca1\u5565\u53ef\u8bf4\u7684\uff0c\u5e72\u5c31\u5b8c\u4e86\uff0c\u4e0d\u5c31\u662f\u624b\u5de5Mapping\u5417\uff1f\uff08\u80f6\u7247\u8c03\u8272\u65f6\u4ee3\u8001\u5e08\u5085\u72c2\u559c\uff09<\/p>\n\n\n\n<p>\u9971\u548c\u5ea6\u52a0\u4e0a\u53bb\uff0c\u66f2\u7ebf\u62c9\u62c9\u5bf9\u6bd4\u5ea6\uff0c\u5927\u529f\u544a\u6210\uff01<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"526\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/nlog-man-dr-1024x526.png\" alt class=\"wp-image-1417\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-man-dr-1024x526.png 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-man-dr-300x154.png 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-man-dr-768x395.png 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-man-dr-1536x790.png 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-man-dr-2048x1053.png 2048w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-man-dr-400x206.png 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-man-dr-940x483.png 940w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"526\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20526%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1417 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20526%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-man-dr-1024x526.png 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-man-dr-300x154.png 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-man-dr-768x395.png 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-man-dr-1536x790.png 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-man-dr-2048x1053.png 2048w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-man-dr-400x206.png 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/nlog-man-dr-940x483.png 940w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/nlog-man-dr-1024x526.png\"><figcaption>\u4f7f\u7528\u66f2\u7ebf\u4e5f\u53ef\u4ee5\u76f4\u63a5\u5b8c\u6210\u5c06N-Log\u8f83\u7070\u7684\u753b\u9762\u8fd8\u539f\u5230\u4e0d\u9519\u7684\u7ed3\u679c\uff0c\u7528\u6237\u53ef\u4ee5\u5b8c\u5168\u81ea\u5df1\u51b3\u5b9a\u753b\u9762\u7684\u53cd\u5dee\u5173\u7cfb<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f7f\u7528\u5339\u914d\u7684LUT\uff08\u67e5\u627e\u8868\uff09\u8fdb\u884c\u8fd8\u539f<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"491\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-1024x491.png\" alt class=\"wp-image-1421\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-1024x491.png 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-300x144.png 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-768x368.png 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-1536x736.png 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-2048x981.png 2048w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-400x192.png 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-940x450.png 940w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"491\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20491%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1421 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20491%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-1024x491.png 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-300x144.png 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-768x368.png 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-1536x736.png 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-2048x981.png 2048w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-400x192.png 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-940x450.png 940w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/n-log-LUT-dr-1024x491.png\"><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>\u6b64\u65b9\u6cd5\u4e3a\u4e00\u952e\u65b9\u6cd5\uff0c\u76f4\u63a5\u80fd\u591f\u83b7\u5f97\u6b63\u5e38\u7ed3\u679c\uff0c\u56e0\u6b64\u4e0d\u8d58\u8ff0\u3002<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link\" href=\"http:\/\/fileaccess.fengyu-poi.cn\/chfs\/shared\/FTP\/Resources\/LUT\/N-Log_709Netural_sdk.cube.zip\">\u70b9\u51fb\u6b64\u5904\u4e0b\u8f7dN-Log\u8fd8\u539fLUT<\/a><\/div>\n<\/div>\n\n\n\n<p>\u6b64\u5904\u63d0\u4f9b\u7528\u4e8e\u8fd8\u539f\u768433Point LUT\u3002\u8be5LUT\u5df2\u7ecf\u505a\u8fc7\u5916\u89c2\u5fae\u8c03\uff0c\u4ee5\u9002\u914dN-Log\u8fd8\u539f\u540e\u7684\u8272\u5f69\u7279\u6027\uff0c\u56e0\u6b64\u7ed3\u679c\u4e0eCMS\u8fd8\u539f\u7ed3\u679c\u6709\u4e00\u5b9a\u5dee\u5f02\u3002\u5982\u679c\u4f60\u9700\u8981\u5feb\u901f\u5c06N-Log\u753b\u9762\u8f6c\u6362\u5230\u4e00\u4e2a\u5e72\u51c0\u901a\u900f\u7684\u76ee\u6807\u72b6\u6001\uff0c\u8fd9\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u9009\u62e9\u3002\u4f46\u5982\u679c\u4f60\u6709\u8f83\u9ad8\u8981\u6c42\uff0c\u4f8b\u5982\u60f3\u6267\u884cSR-DR\u7684\u8f6c\u6362\uff0c\u5219\u4e0d\u63a8\u8350\u4f7f\u7528\u8be5LUT\uff0c\u56e0\u4e3a\u8be5LUT\u5e76\u4e0d\u662f\u4e00\u4e2a\u53ef\u9006\u9009\u62e9<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f7f\u7528\u8272\u5f69\u7ba1\u7406\u7cfb\u7edf\u8fdb\u884c\u8fd8\u539f<\/h3>\n\n\n\n<p>\u6839\u636e\u521a\u521a\u7684\u5b9a\u4e49\uff0c\u53ef\u4ee5\u76f4\u63a5\u628aN-Log\u7d20\u6750\u7684\u8272\u57df\u5f53\u4f5cBT2020\u6765\u4f7f\u7528\uff0c\u56e0\u6b64Mapping\u8fc7\u7a0b\u53ef\u4ee5\u63cf\u8ff0\u4e3a\uff1a<\/p>\n\n\n\n<p>Rec.2020\/N-Log -&gt; Rec.709 \/ BT.1886 (Gamma2.4 + OOTF)<\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"524\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-1024x524.png\" alt class=\"wp-image-1422\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-1024x524.png 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-300x154.png 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-768x393.png 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-1536x786.png 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-2048x1049.png 2048w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-400x205.png 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-940x481.png 940w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"524\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20524%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1422 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20524%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-1024x524.png 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-300x154.png 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-768x393.png 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-1536x786.png 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-2048x1049.png 2048w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-400x205.png 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-940x481.png 940w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/n-log-CMS-dr-1024x524.png\"><\/figure>\n\n\n\n<p>\u5728\u6b64\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u7559\u610f\u5b9a\u4e49\u57df\u53d8\u5316\u5bfc\u81f4\u7684\u4fe1\u53f7\u8d85\u6807\u95ee\u9898\u3002\u9009\u62e9\u6b63\u786e\u7684Tone Mapping Method\u4ee5\u53caGamut Mapping Method\u662f\u6709\u5fc5\u8981\u7684\u3002<\/p>\n\n\n\n<p>\u5bf9\u4e8eCMS\u4e2d\u6ca1\u6709N-Log\u5b9a\u4e49\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u81ea\u5df1\u5229\u7528N-Log\u516c\u5f0f\u8fdb\u884c\u8f6c\u6362\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u7528\u6237\u4f7f\u75282065-1\u4f53\u7cfb\uff0c\u53ef\u4ee5\u4f7f\u7528\u672c\u6587\u672b\u5c3e\u7684IDT\u51fd\u6570\u6765\u5b9e\u73b0\u8f6c\u6362\u3002<\/p>\n\n\n\n<div style=\"height:143px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">4.\u7956\u4f20\u84dd\u8272\u95ee\u9898<\/h2>\n\n\n\n<p>\u5728\u4e4b\u524d\u5df2\u7ecf\u6709\u5927\u91cf\u7f51\u4e0a\u7684\u8a00\u8bba\u8bf4\u660e\u4e86N-log\u5728\u62cd\u6444\u4e00\u4e9b\u989c\u8272\u7eaf\u5ea6\u9ad8\u7684\u84dd\u8272\u706f\u5149\u65f6\u5019\uff0c\u4f1a\u51fa\u73b0\u4e0d\u5229\u7684\u300c\u6ea2\u51fa\u300d\u95ee\u9898\u3002\u7b80\u800c\u8a00\u4e4b\uff0c\u5f53\u84dd\u8272\u706f\u5149\u9971\u548c\u5ea6\u8db3\u591f\u9ad8\u7684\u65f6\u5019\uff0c\u660e\u4eae\u7684\u84dd\u8272\u6e10\u53d8\u7a81\u7136\u9006\u8f6c\uff0c\u53d8\u6210\u6697\u800c\u7eaf\u7684\u84dd\u8272\uff0c\u6b64\u65f6\u5982\u679c\u7528\u53d6\u8272\u5668\uff0c\u7528\u6237\u80fd\u591f\u6ce8\u610f\u5230\u8fd9\u4e9b\u533a\u57df\u51e0\u4e4e\u6ca1\u6709R\uff0cG \u901a\u9053\u7684\u4fe1\u606f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-1024x576.jpg\" alt class=\"wp-image-1309\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1309 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1.jpg 1920w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-1024x576.jpg\"><figcaption>N-Log\u753b\u9762\uff0c\u6ce8\u610f\u706f\u73e0\u7684\u989c\u8272\u53d8\u5316\uff0c\u706f\u73e0\u7684\u53d1\u5149\u70b9\u5e94\u8be5\u662f\u660e\u4eae\u7684\uff0c\u4f46\u662f\u6b64\u65f6\u5374\u6210\u4e3a\u4e86\u6697\u84dd\u8272<\/figcaption><\/figure>\n\n\n\n<p>\u5728\u6211\u4eec\u7684\u5b9e\u9a8c\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e00\u4e2a\u84dd\u8272\u5c5e\u6027\u7684\u7167\u660e\u73af\u5883\uff0c\u5e76\u9010\u6e10\u589e\u52a0\u5176\u9971\u548c\u5ea6\uff0c\u53ef\u4ee5\u7559\u610f\u4e00\u4e0b\u753b\u9762\u7684\u8272\u5f69\u4fe1\u606f\u662f\u5982\u4f55\u968f\u7740\u7167\u660e\u73af\u5883\u53d8\u5316\u800c\u6539\u53d8\u7684\u3002\u540c\u65f6\u53ef\u4ee5\u6ce8\u610f\u6bcf\u4e00\u5f20\u56fe\u50cf\u7684\u7167\u660e\u73af\u5883\u5bf9\u5e94\u7684\u8272\u54c1\u5750\u6807\uff08\u5c31\u662f\u5728CIE1931\u56fe\u4e0a\u9762\u7684\u90a3\u4e2a\u70b9\u70b9\uff09<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-1 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><noscript><img decoding=\"async\" width=\"1920\" height=\"1080\" data-id=\"1302\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1.jpg\" alt class=\"wp-image-1302\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1.jpg 1920w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.1.1_1.1.1-940x529.jpg 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src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1.jpg\" alt class=\"wp-image-1304\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1.jpg 1920w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-520x293.jpg 520w\" sizes=\"(max-width: 1920px) 100vw, 1920px\"><\/noscript><img decoding=\"async\" width=\"1920\" height=\"1080\" data-id=\"1304\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201920%201080%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1304 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201920%201080%22%3E%3C%2Fsvg%3E 1920w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1.jpg 1920w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-940x529.jpg 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sizes=\"(max-width: 1920px) 100vw, 1920px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1.jpg 1920w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-520x293.jpg 520w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1.jpg\"><\/figure>\n<\/figure>\n\n\n\n<p>\u663e\u7136\uff0c\u5f53\u7167\u660e\u5149\u7684\u8272\u54c1\u5750\u6807\u9760\u8fd1CIE1931xy(0.1494, 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class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1308\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-1024x576.jpg\" alt class=\"wp-image-1308\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1308\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1308 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1.jpg 1920w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.13.1_1.13.1-1024x576.jpg\"><figcaption>N-Log\u753b\u9762\uff0c\u9ad8\u66dd\u5149\u8bbe\u5b9a\u4e0b\uff0c\u753b\u9762\u57fa\u672c\u4e0d\u4f1a\u51fa\u73b0Spilling<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1309\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-1024x576.jpg\" alt class=\"wp-image-1309\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1309\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1309 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1.jpg 1920w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.17.1_1.17.1-1024x576.jpg\"><figcaption>N-Log\u753b\u9762\uff0c\u4f4e\u66dd\u5149\u8bbe\u5b9a\u4e0b\uff0c\u753b\u9762\u4e2d\u706f\u73e0\u5bb9\u6613\u51fa\u73b0\u5f02\u5e38<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"has-text-align-center wp-block-heading\">\u4ec0\u4e48\uff0c\u4f60\u8bf4\u5c3c\u5eb7\u4e0d\u80fd\u62cd\u89c6\u9891\uff1f<\/h2>\n\n\n\n<p>\u7531\u4e8e\u8fd9\u4e2a\u73b0\u8c61\u7684\u5b58\u5728\uff0c\u4fbf\u51fa\u73b0\u4e86\u5927\u91cf\u300c\u952e\u6444\u300d\u5f00\u59cb\u8bf4N-Log\u5783\u573e\uff0c\u6216\u8005\u76f4\u63a5\u8bf4N-Log\u4e0d\u9002\u5408\u62cd\u89c6\u9891\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\u8bb2\u4e2a\u7b11\u8bdd\uff0c\u5f53\u6211\u95ee\u53ca\u8fd9\u4e9b\u7816\u5bb6\u4e3a\u4ec0\u4e48\u4f1a\u51fa\u73b0\u8fd9\u6837\u7684\u73b0\u8c61\u7684\u65f6\u5019\uff0c\u4ed6\u4eec\u603b\u7ed9\u51fa\u60ca\u4eba\u76f8\u4f3c\u7684\u7b54\u6848\uff1a\u5bbd\u5bb9\u5ea6\u4e0d\u591f<\/p><\/blockquote>\n\n\n\n<p>\u4e8b\u5b9e\u4e0a\uff0c\u84dd\u8272\u6ea2\u51fa\u7684\u95ee\u9898\uff0cN-Log\u5e76\u4e0d\u662f\u4e3b\u8981\u5143\u51f6\uff0c\u8fd9\u91cc\u6211\u4eec\u9700\u8981\u5f3a\u8c03\u4e00\u4e2a\u65b0\u95ee\u9898<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">N-Log\u5e76\u4e0d\u662f\u4e00\u4e2a\u8272\u5f69\u7a7a\u95f4<\/h3>\n\n\n\n<p>\u8981\u5b8c\u6574\u5b9a\u4e49\u4e00\u4e2a\u8272\u5f69\u7a7a\u95f4\uff0c\u6700\u57fa\u672c\u9700\u8981\u4e24\u4e2a\u8981\u7d20\uff0c\u300cGamut\u300d\u300cGamma\u300d<\/p>\n\n\n\n<p>Gamut\u662f\u4ec0\u4e48\uff0c\u5176\u5b9e\u5c31\u662f\u6211\u4eec\u5728CIE1931\u8272\u5ea6\u56fe\u4e0a\u770b\u5230\u7684\u90a3\u79cd\u4e09\u89d2\u5f62\uff0c\u6240\u4ee5\u4f60\u5c31\u660e\u767d\u4e86\uff0cGamut\u5c31\u53ef\u4ee5\u7406\u89e3\u4e3a\u8272\u57df\u3002<\/p>\n\n\n\n<p>\u800cGamma\uff0c\u4fbf\u662f\u4e00\u6761\u7f16\u7801\u66f2\u7ebf\uff0c\u8868\u793a\u8f93\u5165\u8f93\u51fa\u7684\u4e00\u4e2a1\u7ef4\u5173\u7cfb\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u4f60\u80fd\u7406\u89e3\u8fd9\u4e2a\uff0c\u90a3\u4e48n-log\u7684\u6ea2\u51fa\u95ee\u9898\u5c31\u80fd\u5f97\u5230\u66f4\u591a\u89e3\u91ca\u4e86<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u539f\u6765\u662fGamut\u7684\u8d85\u6807\u554a<\/h3>\n\n\n\n<p>\u4e4b\u524d\u5df2\u7ecf\u63d0\u5230\u8fc7\uff0cN-Log\u4f7f\u7528Rec2020\u8272\u5f69\u7a7a\u95f4\uff0c\u663e\u7136\u8fd9\u4e2a\u7a7a\u95f4\u7684\u5927\u5c0f\u662f\u6709\u9650\u7684\uff0c\u90a3\u4e48\u5982\u679c\u5f53\u73b0\u573a\u5149\u7684\u8272\u5ea6\u5750\u6807\u5927\u4e8e\u4e86\u8fd9\u4e2a\u7a7a\u95f4\uff0c\u5c31\u4f1a\u53d1\u751f\u300c\u8d85\u6807\u300d\u7684\u95ee\u9898\u3002\u4e0d\u4ec5\u5982\u6b64\uff0c\u5176\u4ed6\u6444\u5f71\u673a\u7684\u7d20\u6750\u5728\u5904\u7406\u6d41\u7a0b\u4e2d\u4e5f\u4e0d\u53ef\u907f\u514d\u9047\u5230\u8fd9\u4e2a\u95ee\u9898\uff0c\u66f4\u5e7f\u6cdb\u7684\u8bf4\uff0c\u5f53\u6211\u4eec\u5728Rec709 OR sRGB\u8fd9\u4e9b\u5de5\u4f5c\u7a7a\u95f4\u5de5\u4f5c\u7684\u65f6\u5019\uff0c\u5c31\u5fc5\u987b\u8981\u9762\u5bf9\u6444\u5f71\u673a\u66f4\u5927\u8272\u57df\uff0c\u5230\u663e\u793a\u5668\u7684\u66f4\u5c0f\u8272\u57df\u7684\u8f6c\u6362\u95ee\u9898\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u8981\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u5c31\u9700\u8981\u4f7f\u7528Mapping\u6765\u5c06\u8d85\u51fa\u6765\u7684\u4e1c\u897f\uff0c\u5f80\u56de\u6536\u4e00\u6536\uff0c\u4ee5\u9632\u5728\u540e\u7eed\u5904\u7406\uff08\u8ba1\u7b97\uff09\u4e2d\u51fa\u73b0\u66f4\u591a\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ec0\u4e48\uff1f\u4f60\u6ca1\u6709\u611f\u89c9\u5230<\/h3>\n\n\n\n<p>\u5012\u4e5f\u6b63\u5e38\uff0c\u56e0\u4e3a\u73b0\u5728\u7684\u5927\u90e8\u5206\u56fe\u50cf\u5904\u7406\u8f6f\u4ef6\uff0c\u90fd\u5728\u540e\u53f0\u5e2e\u52a9\u7528\u6237\u5b8c\u6210\u4e86\u8fd9\u4e9b\u300c\u590d\u6742\u300d\u7684\u6570\u5b66\u53d8\u6362\uff0c\u7528\u6237\u57fa\u672c\u611f\u77e5\u4e0d\u5230\u3002\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5f53\u4f60\u7528PS\u7684Camera RAW\u6253\u5f00\u4e00\u5f20RAW\u56fe\u50cf\u7684\u65f6\u5019\uff0cPS\u5c31\u81ea\u52a8\u5b8c\u6210\u4e86\u7531\u6444\u5f71\u673a\u8272\u57df\uff08\u53ef\u80fd\u6709ProPhotoRGB\u90a3\u4e48\u5927\uff09\u5230\u663e\u793a\u8272\u57df\uff08\u53ef\u80fd\u662fsRGB\uff09\u7684\u8f6c\u6362\u3002\u7136\u800cN-Log\u7684\u7d20\u6750\u201c\u770b\u8d77\u6765\u201c\u5e76\u6ca1\u6709\u5e2e\u52a9\u6211\u4eec\u6765\u505a\u597d\u8fd9\u4e2a\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u90a3\u5c31\u5f00\u5de5\u5457<\/h3>\n\n\n\n<p>\u538b\u7f29\u8272\u5f69\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u6700\u5e38\u89c1\u7684\u5c31\u662f\u4f7f\u7528\u9971\u548c\u5ea6\u66f2\u7ebf\uff0c\u4ee5\u53ca\u786cClip\u5de5\u5177\u6765\u5b9e\u73b0\uff0c\u6240\u4ee5\u5176\u5b9e\u5982\u679c\u529f\u592b\u5230\u5bb6\uff0c\u4e00\u6839RGB\u66f2\u7ebf\u4e5f\u80fd\u5b8c\u6210\u4efb\u52a1\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8272\u57df\u538b\u7f29\u7b97\u6cd5(Gamut Compress)<\/h3>\n\n\n\n<p>\u4e0b\u9762\u4ee5SMPTE2065-1\u7684CMS\u6d41\u7a0b\u4e2d\u4e3a\u4f8b\uff0c\u6f14\u793a\u5efa\u7acb\u4e8e\u51cf\u8272\u6cd5(CMY+Achromatic)\u4e2d\u8272\u57df\u538b\u7f29\u57fa\u672c\u6b65\u9aa4\uff0c\u8be5\u7b97\u6cd5\u5df2\u7ecf\u6709\u5f00\u6e90\u601d\u8def\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8bfb\u53d6\u8f93\u5165\u56fe\u50cf<\/li><li>\u8f6c\u6362\u56fe\u50cf\u5230AP1 Linear\u8272\u5f69\u7a7a\u95f4<\/li><li>\u5229\u7528RGB\u91cd\u5efaAchromatic\uff0c\u8ba1\u7b97\u51fa\u7684\u6d88\u8272\u901a\u9053\u4e3a ach<\/li><li>\u8ba1\u7b97\u51cf\u8272\u7cfb\u7edf\u4e2d\u7684\u8272\u5ea6\u4fe1\u606f<\/li><li>\u5bf9\u8272\u5ea6\u901a\u9053\u8fdb\u884c\u538b\u7f29<\/li><li>Achromatic\u4e0eChroma\u901a\u9053\u5408\u5e76+\u9006\u8fd0\u7b97\u8ba1\u7b97RGB<\/li><li>\u8f6c\u6362\u5230SMPTE2065-1 (AP0 Linear)\u8272\u5f69\u7a7a\u95f4<\/li><li>\u8fc7\u7a0b\u7ed3\u675f<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u538b\u7f29\u6838\u5fc3\u7b97\u6cd5<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>float compress(float dist, float lim, float thr, float pwr, bool invert)\n{\n    float comprDist;\n    float scl;\n    float nd;\n    float p;\n\n    if (dist  thr) {\n        comprDist = dist; \/\/ No compression below threshold\n    }\n    else {\n        \/\/ Calculate scale factor for y = 1 intersect\n        scl = (lim - thr) \/ pow(pow((1.0 - thr) \/ (lim - thr), -pwr) - 1.0, 1.0 \/ pwr);\n\n        \/\/ Normalize distance outside threshold by scale factor\n        nd = (dist - thr) \/ scl;\n        p = pow(nd, pwr);\n\n        if (!invert) {\n            comprDist = thr + scl * nd \/ (pow(1.0 + p, 1.0 \/ pwr)); \/\/ Compress\n        }\n        else {\n            if (dist &gt; (thr + scl)) {\n                comprDist = dist; \/\/ Avoid singularity\n            }\n            else {\n                comprDist = thr + scl * pow(-(p \/ (p - 1.0)), 1.0 \/ pwr); \/\/ Uncompress\n            }\n        }\n    }\n\n    return comprDist;\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">STEP1 \u8bfb\u53d6\u8f93\u5165\u56fe\u50cf<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>float ap0&#91;3] = {rIn, gIn, bIn};<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">STEP2 <span style=\"color: revert; font-size: revert; font-weight: revert;\">\u8f6c\u6362\u56fe\u50cf\u5230AP1 Linear\u8272\u5f69\u7a7a\u95f4<\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>float linAP1&#91;3] = mult_f3_ap0_ap1(ap0);\/\/\u8bf7\u6ce8\u610f\u8fd9\u662f\u4e2a\u62bd\u8c61\u65b9\u6cd5<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">STEP3 \u5229\u7528RGB\u91cd\u5efaAchromatic\uff0c\u8ba1\u7b97\u51fa\u7684\u6d88\u8272\u901a\u9053\u4e3a ach<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>floatfloat ach = max_f3(linAP1)<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">STEP4 \u8ba1\u7b97\u51cf\u8272\u7cfb\u7edf\u4e2d\u7684\u8272\u5ea6\u4fe1\u606f<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>float dist&#91;3];\n    if (ach == 0.0) {\n        dist&#91;0] = 0.0;\n        dist&#91;1] = 0.0;\n        dist&#91;2] = 0.0;\n    }\n    else {\n        dist&#91;0] = (ach - linAP1&#91;0]) \/ fabs(ach);\n        dist&#91;1] = (ach - linAP1&#91;1]) \/ fabs(ach);\n        dist&#91;2] = (ach - linAP1&#91;2]) \/ fabs(ach);\n    }<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">STEP5 Mapping\u5927\u6cd5<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ Compress distance with parameterized shaper function\n    float comprDist&#91;3] = {\n        compress(dist&#91;0], LIM_CYAN, THR_CYAN, PWR, invert),\n        compress(dist&#91;1], LIM_MAGENTA, THR_MAGENTA, PWR, invert),\n        compress(dist&#91;2], LIM_YELLOW, THR_YELLOW, PWR, invert)\n    };<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">STEP6 \u901a\u9053\u5408\u5e76 \u91cd\u5efa\u65b0\u7684RGB\u901a\u9053<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>float comprLinAP1&#91;3] = {\n        ach - comprDist&#91;0] * fabs(ach),\n        ach - comprDist&#91;1] * fabs(ach),\n        ach - comprDist&#91;2] * fabs(ach)\n    };<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">STEP7 \u81ea\u5df1\u5b8c\u6210\u540e\u7eed\u6b65\u9aa4\u5427<\/h3>\n\n\n\n<p>\uff08\u5199\u4e0d\u52a8\u4e86\uff09<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u54e6\u5bf9\u4e86 \u5fd8\u4e86\u7ed9\u51faDefault\u4e86<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>\n\/* --- Gamut Compress Parameters --- *\/\n\/\/ Distance from achromatic which will be compressed to the gamut boundary\n\/\/ Values calculated to encompass the encoding gamuts of common digital cinema cameras\nconst float LIM_CYAN =  1.147;\nconst float LIM_MAGENTA = 1.264;\nconst float LIM_YELLOW = 1.312;\n\n\/\/ Percentage of the core gamut to protect\n\/\/ Values calculated to protect all the colors of the ColorChecker Classic 24 as given by\n\/\/ ISO 17321-1 and Ohta (1997)\nconst float THR_CYAN = 0.815;\nconst float THR_MAGENTA = 0.803;\nconst float THR_YELLOW = 0.880;\n\n\/\/ Aggressiveness of the compression curve\nconst float PWR = 1.2;\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u6548\u679c\u5448\u73b0<\/h3>\n\n\n\n<p>\u4e0b\u5217\u5bf9\u6bd4\u56fe\u5c55\u793a\u4e86\u8be5\u65b9\u6cd5\u5728\u6291\u5236\u8272\u5f69\u6ea2\u51fa\u65b9\u9762\u7684\u6548\u679c\u3002<\/p>\n\n\n\n<p>\u5de6\u4fa7\u4e00\u6392\u5206\u522b\u4e3a\u4f4e\u9971\u548c\u5ea6\u3001\u4e2d\u9971\u548c\u5ea6\u3001\u9ad8\u9971\u548c\u5ea6\u7167\u660e\u6761\u4ef6\uff0c\u4ee5\u53ca\u62cd\u6444\u7eaf\u53d1\u5149\u7269\u4f53\u7684\u753b\u9762\uff1b\u53f3\u4fa7\u4e3a\u5bf9\u5e94\u7684\u4f7f\u7528\u538b\u7f29\u7b97\u6cd5\u4e86\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-2 is-cropped wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1337\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-1024x576.jpg\" alt class=\"wp-image-1337\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1337\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1337 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1.jpg 1920w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.2.1_1.2.1-1-1024x576.jpg\"><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1338\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-1024x576.jpg\" alt class=\"wp-image-1338\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1338\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1338 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2.jpg 1920w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.2.2_1.2.2-1024x576.jpg\"><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1339\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-1024x576.jpg\" alt class=\"wp-image-1339\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1339\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1339 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1.jpg 1920w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.3.1_1.3.1-1-1024x576.jpg\"><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1340\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-1024x576.jpg\" alt class=\"wp-image-1340\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1340\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1340 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2.jpg 1920w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.3.2_1.3.2-1024x576.jpg\"><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><noscript><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1341\" src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1-1024x576.jpg\" alt class=\"wp-image-1341\" srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><\/noscript><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"1341\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E\" alt class=\"wp-image-1341 lazyload\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201024%20576%22%3E%3C%2Fsvg%3E 1024w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1-1024x576.jpg 1024w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.5.1_1.5.1-1-940x529.jpg 940w, 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http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.16.2_1.16.2-300x169.jpg 300w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.16.2_1.16.2-768x432.jpg 768w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.16.2_1.16.2-1536x864.jpg 1536w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.16.2_1.16.2-400x225.jpg 400w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.16.2_1.16.2-940x529.jpg 940w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.16.2_1.16.2-520x293.jpg 520w, http:\/\/www.fengyu-poi.cn\/wp-content\/uploads\/2021\/11\/1.16.2_1.16.2.jpg 1920w\" data-src=\"http:\/\/blog.fengyu-poi.cn:57650\/wp-content\/uploads\/2021\/11\/1.16.2_1.16.2-1024x576.jpg\"><\/figure>\n<\/figure>\n\n\n\n<p>\u80fd\u591f\u6ce8\u610f\u5230\u8be5\u65b9\u6cd5\u80fd\u591f\u6709\u6548\u7684\u5728\u90e8\u5206\u901a\u9053\u4fe1\u606f\u5df2\u7ecf\u4e22\u5931\u7684\u60c5\u51b5\u4e0b\uff0c\u8f83\u597d\u7684\u91cd\u5efa\u4eae\u5ea6\u4fe1\u606f\uff0c\u5e76\u6709\u6548\u6291\u5236\u8d85\u6807\u7684\u989c\u8272\u3002<\/p>\n\n\n\n<p>\u6700\u91cd\u8981\u7684\u4e00\u70b9\u662f\uff0c\u8be5\u65b9\u6cd5\u80fd\u591f\u6709\u6548\u4fdd\u6301\u753b\u9762\u4e2d\u7684\u6574\u4f53\u9971\u548c\u5ea6\uff0c\u4ee5\u53ca\u9664\u4e86\u300c\u6ea2\u51fa\u300d\u4e4b\u5916\u7684\u5176\u4ed6\u753b\u9762\u989c\u8272\u3002\u7559\u610f\u753b\u9762\u4e2d\u7684CIE\u56fe\u548c\u8272\u677f\uff0c\u9664\u4e86\u84dd\u8272\u4ee5\u5916\u7684\u989c\u8272\u57fa\u672c\u4e0d\u88ab\u5f71\u54cd\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8fd8\u8981\u5e72\u5565\uff1f\u5f53\u7136\u662f\u7ee7\u7eed\u8c03\u8272\u4e86\u5457\uff01<\/h3>\n\n\n\n<p>\u505a\u5b8c\u8fd9\u4e00\u6b65\uff0c\u8c03\u8272\u5e08\u5c31\u53ef\u4ee5\u548c\u5904\u7406\u5176\u4ed6\u6b63\u5e38\u753b\u9762\u4e00\u6837\uff0c\u5c55\u5f00\u5e38\u89c4\u8c03\u8272\u4e86\uff01<\/p>\n\n\n\n<p><\/p>\n\n\n\n<div style=\"height:143px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">5.IDT<\/h2>\n\n\n\n<p>\u63d0\u4f9b\u7ed9\u6709\u4e00\u5b9a\u57fa\u7840\u7684\u7528\u6237\u4f7f\u7528<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\n__DEVICE__ inline float Log_to_linear(float inv)\n{\nfloat outv;\nif (inv &gt; (452.0f\/1023.0f) ) { outv = _powf(2.7182818284f, (1023.0f\/150.0f * inv - 619.0f\/150.0f)); } else { outv = _powf( inv \/ (650.0f\/1023.0f), 3.0f ) - 0.0075f; }\nreturn outv;\n}\n\n__DEVICE__ float3 transform(int p_Width, int p_Height, int p_X, int p_Y, float p_R, float p_G, float p_B)\n{\nconst float mtx&#91;9] = {0.6788911506598102f,0.15886842237789234f,0.16224042703562752f, 0.04557083087232135f,0.8607127720474108f,0.0937163970408747f, -0.0004857103518124508f,0.025060195735059528f,0.9754255145687619f};\n\nfloat r1 = Log_to_linear(p_R);\nfloat g1 = Log_to_linear(p_G);\nfloat b1 = Log_to_linear(p_B);\nfloat r2 = r1 * mtx&#91;0] + g1 * mtx&#91;1] + b1 * mtx&#91;2];\nfloat g2 = r1 * mtx&#91;3] + g1 * mtx&#91;4] + b1 * mtx&#91;5];\nfloat b2 = r1 * mtx&#91;6] + g1 * mtx&#91;7] + b1 * mtx&#91;8];\n\nreturn make_float3(r2, g2, b2);\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u4fee\u6539\u4e8e2021-11-24 \u672c\u6587\u5305\u542b\u4ee5\u4e0b\u5185\u5bb9 \u4e00\u4e9b\u8bef\u533a N-Log\u57fa\u672c\u5b9a\u4e49(\u66f2\u7ebf \u8272\u57df\u7279\u6027) N-Log\u57fa&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":1337,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_s2mail":"yes","footnotes":""},"categories":[14],"tags":[],"class_list":["post-1253","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\/1253","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=1253"}],"version-history":[{"count":101,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/posts\/1253\/revisions"}],"predecessor-version":[{"id":2196,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/posts\/1253\/revisions\/2196"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=\/wp\/v2\/media\/1337"}],"wp:attachment":[{"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1253"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.fengyu-poi.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}