{"id":2186,"date":"2017-11-27T16:42:24","date_gmt":"2017-11-27T08:42:24","guid":{"rendered":"http:\/\/www.51cos.com\/?p=2186"},"modified":"2017-11-27T16:42:24","modified_gmt":"2017-11-27T08:42:24","slug":"yuv%e5%90%84%e7%a7%8d%e6%a0%bc%e5%bc%8f%e6%89%80%e5%8d%a0%e7%9a%84%e5%86%85%e5%ad%98%e7%9a%84%e5%a4%a7%e5%b0%8f%e6%80%bb%e7%bb%93","status":"publish","type":"post","link":"http:\/\/www.51cos.com\/?p=2186","title":{"rendered":"YUV\u5404\u79cd\u683c\u5f0f\u6240\u5360\u7684\u5185\u5b58\u7684\u5927\u5c0f\u603b\u7ed3"},"content":{"rendered":"<p>YUV\u5b9a\u4e49\uff1a\u5206\u4e3a\u4e09\u4e2a\u5206\u91cf\uff0c<\/p>\n<p>\u201cY\u201d\u8868\u793a\u660e\u4eae\u5ea6\uff08Luminance\u6216Luma\uff09\uff0c\u4e5f\u5c31\u662f\u7070\u5ea6\u503c\uff1b\u800c\u201cU\u201d\u548c\u201cV\u201d 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width=\"644\" height=\"470\" \/><\/a><a href=\"http:\/\/www.51cos.com\/wp-content\/uploads\/2017\/11\/24439730_13282389538k8V.jpg\">\u4ee5\u9ed1\u70b9\u8868\u793a\u91c7\u6837\u8be5\u50cf\u7d20\u70b9\u7684Y\u5206\u91cf\uff0c\u4ee5\u7a7a\u5fc3\u5706\u5708\u8868\u793a\u91c7\u7528\u8be5\u50cf\u7d20\u70b9\u7684UV\u5206\u91cf\u3002<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2188\" src=\"http:\/\/www.51cos.com\/wp-content\/uploads\/2017\/11\/24439730_13282389538k8V.jpg\" alt=\"\" width=\"930\" height=\"255\" \/><\/a><\/p>\n<p>YUV444\u683c\u5f0f\u6ca1\u6709\u8fdb\u884c\u538b\u7f29\uff0c\u5360\u7528\u7a7a\u95f4\u4e3awith*height*3\uff0c\u4e0eRGB\u5360\u7528\u7a7a\u95f4\u76f8\u540c<\/p>\n<p>YUV420\u683c\u5f0f<br \/>\n\u5982\u679cw = 4\uff0ch = 2\uff0c\u5219\uff1a<br \/>\nyyyy<br \/>\nyyyy<br \/>\nuu<br \/>\nvv<br \/>\n\u5185\u5b58\u5219\u662f\uff1ayyyyyyyyuuvv<br \/>\n\u9700\u8981\u5360\u7528\u7684\u5185\u5b58\uff1aw * h * 3 \/ 2<br 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2<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>YUV\u5b9a\u4e49\uff1a\u5206\u4e3a\u4e09\u4e2a\u5206\u91cf\uff0c \u201cY\u201d\u8868\u793a\u660e\u4eae\u5ea6\uff08Luminance\u6216Luma\uff09\uff0c\u4e5f\u5c31\u662f\u7070\u5ea6\u503c\uff1b\u800c\u201cU\u201d\u548c\u201cV\u201d  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