{"id":1719,"date":"2017-03-18T22:05:48","date_gmt":"2017-03-18T14:05:48","guid":{"rendered":"http:\/\/clear.vimge.com\/?p=1719"},"modified":"2017-04-01T11:07:46","modified_gmt":"2017-04-01T03:07:46","slug":"google-jpeg-guetzli","status":"publish","type":"post","link":"https:\/\/blog.vimge.com\/archives\/other\/google-jpeg-guetzli.html","title":{"rendered":"\u63ed\u79d8\u80fd\u8ba9\u56fe\u7247\u4f53\u79ef\u51cf\u5c0f35%\u7684Google\u7f16\u7801\u5668Guetzli"},"content":{"rendered":"

\"Guetzli\"<\/a><\/p>\n

\u8fd9\u6bb5\u65f6\u95f4\u5934\u6761\u88ab\u4e00\u6761\u5173\u4e8eGoogle\u5f00\u6e90JPEG\u7f16\u7801\u5668\u300eGuetzli\u300f\u7684\u4fe1\u606f\u5237\u5c4f\uff0c\u300e\u8d28\u91cf\u4e0d\u53d8\uff0c\u4f53\u79ef\u51cf\u5c0f35%…\u300f,\u770b\u7740\u90fd\u8ba9\u4eba\u6fc0\u52a8\uff0c\u5982\u679c\u5c5e\u5b9e\u8fd9\u5e94\u8be5\u662f\u56fe\u7247\u538b\u7f29\u6280\u672f\u4e0a\u7684\u4e00\u6b21\u91cd\u5927\u7a81\u7834\uff0c\u5e26\u7740\u597d\u5947\u5fc3\u6211\u4ed4\u7ec6\u67e5\u9605\u4e86\u76f8\u5173\u6587\u6863\u5e76\u505a\u4e86\u4e00\u6b21\u5168\u9762\u6d4b\u8bd5\uff0c\u5f97\u5230\u7684\u7ed3\u8bba\u662f\uff1a\u57fa\u672c\u5c5e\u5b9e\uff0c\u4f46\u4e5f\u4e0d\u7528\u300e\u8fa3\u4e48\u9e21\u51bb\u300f\uff0c\u4e3a\u4ec0\u4e48\u6211\u4e0b\u9762\u4f1a\u544a\u8bc9\u4f60<\/p>\n

\u771f\u76f8\u4e00<\/h4>\n

\u4e0eWebP\u548cWebM\u7b49\u5176\u4ed6\u538b\u7f29\u6280\u672f\u4e0d\u4e00\u6837\u7684\u662f\uff0cGuetzli\u662f\u5168\u65b0\u7684JPEG\u7b97\u6cd5\uff0c\u5b8c\u5168\u517c\u5bb9\u6240\u6709\u652f\u6301JPEG\u56fe\u7247\u7684\u8bbe\u5907\u548cJPEG\u6807\u51c6<\/p>\n

\u771f\u76f8\u4e8c<\/h4>\n

Guetzli\u662f\u4e00\u4e2a\u6709\u635f\u538b\u7f29\u7b97\u6cd5\uff0c\u6574\u4f53\u538b\u7f29\u6548\u679c\u4e0a Guetzli \u6bd4 Libjpe \u4f18\uff0c\u538b\u7f29\u7387\u63d0\u9ad8\u4e8612%~35%\uff0c\u5728\u9ad8\u8d28\u91cf\u7cfb\u6570\u4e0bGuetzli\u8868\u73b0\u66f4\u4f18<\/p>\n

\"\u538b\u7f29\u7387\"<\/a><\/p>\n

\u538b\u7f29\u7387<\/p>\n

 <\/p>\n

\"\u8089\u773c\u8d28\u91cf\"<\/a>\u8089\u773c\u8d28\u91cf<\/p>\n

Guetzli\u4e0e\u5176\u4ed6\u7b97\u6cd5\u4e0d\u540c\u7684\u662f\u5b83\u5728\u538b\u7f29\u5206\u5c42\u9636\u6bb5\u6709\u4e00\u5b9a\u7684\u4f18\u52bf\uff0c\u5b83\u5c1d\u8bd5\u5728\u5206\u5c42\u9636\u6bb5\u51cf\u5c11\u5927\u91cf\u96be\u4ee5\u538b\u7f29\u7684\u65e0\u5e8f\u6570\u636e\uff0c\u5c06\u5176\u53d8\u4e3a\u6709\u5e8f\u6570\u636e\u8fdb\u884c\u538b\u7f29\u3002Guetzli\u662f\u57fa\u4e8e\u56fe\u7247\u89c6\u89c9\u5dee\u5f02\u8bc4\u4ef7\u5de5\u5177Butteraugli\uff0c\u8be5\u5de5\u5177\u5728\u4ee5\u4e0b\u4e09\u4e2a\u65b9\u9762\u6709\u5176\u72ec\u7279\u6027\uff1a<\/p>\n

    \n
  1. \u4eba\u773c\u5bf9\u5f3a\u9ec4\u8272\u5149\u9644\u8fd1\u84dd\u5149\u53d8\u5316\u662f\u4e0d\u654f\u611f\u7684\uff0c\u56e0\u6b64\u9ec4\u5149\u533a\u57df\u9644\u8fd1\u7684\u84dd\u5149\u53ef\u4ee5\u7528\u66f4\u5c11\u7684bit\u6765\u7f16\u7801<\/li>\n
  2. \u4eba\u773c\u5bf9\u84dd\u5149\u6709\u7740\u8f83\u4f4e\u7684\u7a7a\u95f4\u5206\u8fa8\u7387\uff0c\u89c6\u7f51\u819c\u4e2d\u7528\u4e8e\u5206\u8fa8\u9ad8\u6e05\u7ec6\u8282\u7684\u533a\u57df\u6ca1\u6709\u84dd\u8272\u5149\u7684\u53d7\u4f53\uff0c\u6545\u9ad8\u9891\u533a\u57df\u7684\u84dd\u8272\u5149\u90e8\u5206\u53ef\u4ee5\u7528\u66f4\u7c97\u7684\u7c92\u5ea6\u7f16\u7801\u3002<\/li>\n
  3. \u5c06\u56fe\u50cf\u4e2d\u7684\u566a\u58f0\u533a\u57df\u5206\u8fa8\u51fa\u6765\u8fdb\u884c\u7c97\u7c92\u5ea6\u7684\u7f16\u7801\u3002<\/li>\n<\/ol>\n

    \u57fa\u4e8e\u6b64Guetzli\u5176\u5b9e\u662f\u5c06\u4eba\u773c\u4e0d\u654f\u611f\u7684\u90e8\u5206\u989c\u8272\u505a\u4e86\u53d6\u820d\uff0c\u4e0b\u9762\u662fGoogle\u5b9e\u9a8c\u5ba4\u5de5\u7a0b\u5e08\u7684\u89e3\u91ca<\/p>\n

    Guetzli \u5728\u8f7b\u5fae\u5931\u771f\u548c\u66f4\u5c0f\u7684\u6587\u4ef6\u5c3a\u5bf8\u4e0a\u53d6\u5f97\u4e86\u66f4\u597d\u7684\u5e73\u8861\uff0c\u5176\u501f\u52a9\u4e86\u641c\u7d22\u7b97\u6cd5\u6765\u5c1d\u8bd5\u514b\u670d JPEG \u683c\u5f0f\u4e2d\u7269\u7406\u5efa\u6a21\u7684\u5dee\u522b\uff0c\u8272\u51c6\u548c\u89c6\u89c9\u63a9\u853d\u6548\u679c\u66f4\u4f73\u8be6\u5c3d\u901a\u900f\u3002<\/p><\/blockquote>\n

    \u771f\u76f8\u4e09<\/h4>\n

    \u5982\u679c\u4f60\u5bf9\u56fe\u7247\u538b\u7f29\u65f6\u6548\u6027\u8981\u6c42\u6bd4\u8f83\u9ad8\u7684\u8bdd\uff0cGuetzli\u5c06\u4f1a\u4ee4\u4f60\u5931\u671b<\/p>\n

    Guetzli\u603b\u7684\u5904\u7406\u6d41\u7a0b\u662f\u5c1d\u8bd5\u591a\u79cd\u91cf\u5316\u8868\u53caDCT\u7cfb\u6570\u4e24\u4e2a\u65b9\u9762\u7684\u53ef\u80fd\u6027\uff0c\u7136\u540e\u5206\u522b\u5c06\u5c1d\u8bd5\u7684\u7ed3\u679c\u653e\u5230Butteraugli\u8bc4\u6d4b\u5de5\u5177\u4e2d\u8bc4\u5206\uff0c\u6700\u540e\u9009\u62e9\u4e00\u5f20\u5b83\u8ba4\u4e3a\u6700\u597d\u7684\u7ed3\u679c\u8fd4\u56de\u7ed9\u7528\u6237\u3002\u6240\u4ee5\u5b83\u7684\u5904\u7406\u65f6\u5ef6\u7279\u522b\u957f\u3002\u7528verbose\u53c2\u6570\u6253\u5f00Guetzli\u7684log\u53ef\u4ee5\u53d1\u73b0\uff0c\u5e73\u5747\u4e00\u5f20\u56fe\u5927\u6982\u5b83\u5c06\u5c1d\u8bd5\u63a5\u8fd130\u6b21\u7684\u8fed\u4ee3\u3002<\/p>\n

     <\/p>\n

    \"\u5ef6\u65f6\"<\/a>\u538b\u7f29\u5ef6\u65f6<\/p>\n

    Guetzli\u7b97\u6cd5\u7684\u538b\u7f29\u5ef6\u65f6\u8fdc\u8fdc\u9ad8\u4e8elibjpg\u548cwebp\uff0c\u524d\u8005\u5230\u5206\u949f\uff0c\u540e\u8005\u4e0d\u5230\u79d2\u3002\u4e5f\u5c31\u662f\u8bf4\u4e1a\u52a1\u7528Guetzli\u7b97\u6cd5\uff0c\u5355\u4e2a\u8282\u76ee\u6216\u8005\u4e13\u8f91\u7684\u56fe\u7247\u8f6c\u4e94\u6863\u56fe\uff0c\u4e0d\u7b97\u4efb\u52a1\u6392\u961f\u65f6\u95f4\uff0c\u8f6c\u7801\u5c31\u9700\u89811\u5206\u949f\u3002\u800c\u4e14\u538b\u7f29\u56fe\u7247\u8017\u65f6\u8ddf\u56fe\u7247\u5927\u5c0f\u7a0b\u79bb\u6563\u76f8\u5173\uff0c\u56fe\u7247\u8d8a\u5927\uff0c\u8017\u65f6\u8d8a\u4e45\u3002<\/p>\n

    \u5f88\u663e\u7136Guetzil\u5f88\u96be\u9002\u5e94\u6211\u4eec\u5927\u90e8\u5206\u7684\u5728\u7ebf\u5b9e\u65f6\u538b\u7f29\u8981\u6c42\uff0c\u597d\u5728Guetzli\u5b8c\u5168\u7b26\u5408JPEG\u6807\u51c6\uff0c\u89e3\u538b\u6027\u80fd\u4e0a\u9762\u4e0elibjpe\u548cwebp\u76f8\u5f53\uff0c\u6709\u4e9b\u5730\u65b9\u751a\u81f3\u8981\u4f18\u4e8e\u4e24\u8005<\/p>\n

    \u771f\u76f8\u56db<\/h4>\n

    Guetzli\u5904\u7406\u7c7b\u578b\u5c40\u9650\u6027\uff0c\u5e76\u4e0d\u80fd\u5e94\u5bf9\u5168\u90e8\u7c7b\u578b\u7684\u56fe\u7247\u3002\u53ea\u80fd\u5904\u7406YUV\u989c\u8272\u7f16\u7801\u7684\u56fe\u7247<\/p>\n

    \u81f3\u6b64\uff0c\u6211\u60f3\u5927\u5bf9\u5bb6Guetzli\u5e94\u8be5\u6709\u4e86\u4e00\u4e2a\u66f4\u52a0\u6e05\u6670\u548c\u7406\u6027\u7684\u8ba4\u8bc6\u4e86\u5427<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u8fd9\u6bb5\u65f6\u95f4\u5934\u6761\u88ab\u4e00\u6761\u5173\u4e8eGoogle\u5f00\u6e90JPEG\u7f16\u7801\u5668\u300eGuetzli\u300f\u7684\u4fe1\u606f\u5237\u5c4f\uff0c\u300e\u8d28\u91cf\u4e0d\u53d8\uff0c\u4f53\u79ef\u51cf\u5c0f35%& […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.vimge.com\/wp-json\/wp\/v2\/posts\/1719"}],"collection":[{"href":"https:\/\/blog.vimge.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.vimge.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.vimge.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.vimge.com\/wp-json\/wp\/v2\/comments?post=1719"}],"version-history":[{"count":6,"href":"https:\/\/blog.vimge.com\/wp-json\/wp\/v2\/posts\/1719\/revisions"}],"predecessor-version":[{"id":1729,"href":"https:\/\/blog.vimge.com\/wp-json\/wp\/v2\/posts\/1719\/revisions\/1729"}],"wp:attachment":[{"href":"https:\/\/blog.vimge.com\/wp-json\/wp\/v2\/media?parent=1719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.vimge.com\/wp-json\/wp\/v2\/categories?post=1719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.vimge.com\/wp-json\/wp\/v2\/tags?post=1719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}