{"id":2340,"date":"2017-02-15T16:22:09","date_gmt":"2017-02-15T07:22:09","guid":{"rendered":"http:\/\/daily.belltail.jp\/?p=2340"},"modified":"2018-06-07T14:35:43","modified_gmt":"2018-06-07T05:35:43","slug":"ubuntu%e3%81%a7opencv%e3%82%92libjpeg-turbo%e3%81%a4%e3%81%8d%e3%81%a7%e3%83%93%e3%83%ab%e3%83%89%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/daily.belltail.jp\/?p=2340","title":{"rendered":"Ubuntu\u3067OpenCV\u3092libjpeg-turbo\u3064\u304d\u3067\u30d3\u30eb\u30c9\u3059\u308b"},"content":{"rendered":"<p>\u90fd\u9053\u5e9c\u770c\u5225\u306e\u4e00\u4eba\u3042\u305f\u308a\u9b5a\u4ecb\u985e\u6d88\u8cbb\u91cf\u3067\u306f\u3001\u9752\u68ee\u770c\u304c\u30c8\u30c3\u30d7\u3067\u3001\u4ee5\u4e0b\u79cb\u7530\u3001\u9ce5\u53d6\u3001\u65b0\u6f5f\u3001\u5bcc\u5c71\u3068\u65e5\u672c\u6d77\u5074\u306e\u770c\u304c\u7d9a\u304d\u307e\u3059\u3002\u5cf6\u56fd\u30fb\u6c96\u7e04\u304c\u610f\u5916\u306b\u3082\u6700\u4e0b\u4f4d\u3067\u3059\u3002<\/p>\n<p>\u3055\u3066\u3001OpenCV\u3067\u753b\u50cf\u3092\u30ed\u30fc\u30c9\u3059\u308b\u306e\u3092\u901f\u304f\u3057\u305f\u304f\u3066\u3001JPEG\u306b\u3064\u3044\u3066\u306flibjpeg-turbo\u3068\u3044\u3046\u306e\u304c\u4f7f\u3048\u308b\u3053\u3068\u3092\u77e5\u308a\u307e\u3057\u305f\u3002<br \/>\nlibjpeg-turbo\u306flibjpeg\u3092SIMD\u306a\u3069\u306b\u3088\u3063\u3066\u9ad8\u901f\u5316\u3057\u305f\u3082\u306e\u3067API\u30ec\u30d9\u30eb\u306e\u4e92\u63db\u6027\u3092\u4fdd\u3063\u3066\u3044\u307e\u3059\u3002<br \/>\n\u6761\u4ef6\u304c\u826f\u3051\u308c\u3070\u30c7\u30b3\u30fc\u30c9\u304c\u6570\u500d\u901f\u304f\u306a\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u3053\u308c\u3092OpenCV\u306b\u7d44\u307f\u8fbc\u3093\u3067\u30d3\u30eb\u30c9\u3059\u308b\u65b9\u6cd5\u3092\u30e1\u30e2\u3002<\/p>\n<blockquote class=\"twitter-tweet\" data-lang=\"ja\">\n<p lang=\"ja\" dir=\"ltr\">OpenCV\u30d3\u30eb\u30c9\u8077\u4eba\u306e\u671d\u306f\u65e9\u3044\u3002\u300ccontrib\u304c\u5fc5\u8981\u306a\u4ed5\u4e8b\u3060\u3068\u7dca\u5f35\u304c\u8d70\u308b\u306d\u300d\u30d7\u30ed\u30bb\u30c3\u30b5\u3084OS\u306b\u5fdc\u3058\u3066\u6700\u9069\u306a\u8a2d\u5b9a\u3067\u30d3\u30eb\u30c9\u3059\u308b\u306e\u304c\u5f7c\u306e\u4ed5\u4e8b\u3060\u3002ARM\u3078\u306f\u4eba\u4e00\u500d\u306e\u3053\u3060\u308f\u308a\u3092\u898b\u305b\u308b\u3002\u300cCUDA\u3055\u3048\u5207\u308c\u3070\u3082\u306e\u306e\u6570\u5206\u3067\u7d42\u308f\u308b\u3093\u3060\u304c\u306a\u2026\u300d\u305d\u3046\u8a9e\u308b\u80cc\u4e2d\u306b\u306f\u3001\u7a4d\u307f\u91cd\u306d\u305f\u7d4c\u9a13\u5024\u306e\u9ad8\u3055\u304c\u306b\u3058\u3080\u3002<\/p>\n<p>&mdash; \u304a\u3055\u304b\u306a\u3055\u3093 (@sakanazensen) <a href=\"https:\/\/twitter.com\/sakanazensen\/status\/826696291304353792\">2017\u5e742\u67081\u65e5<\/a><\/p><\/blockquote>\n<p><script async src=\"\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p><!--more--><\/p>\n<p>** libjpeg-turbo\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\uff06\u30d3\u30eb\u30c9<\/p>\n<p>\u6700\u8fd1\u306eubuntu\u306e\u5834\u5408\u306fapt-get\u3067\u5165\u308b\u305d\u3046\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u91ce\u826f\u30d3\u30eb\u30c9\u304b\u3089\u8aac\u660e\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>libjpeg-turbo\u306e\u6700\u65b0\u7248\u306f\u3053\u3061\u3089\u3067\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3067\u304d\u307e\u3059\u3002<br \/>\nhttps:\/\/sourceforge.net\/projects\/libjpeg-turbo\/files\/<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\n% sudo apt-get install nasm\r\n% cd \/tmp\r\n% wget https:\/\/jaist.dl.sourceforge.net\/project\/libjpeg-turbo\/1.5.1\/libjpeg-turbo-1.5.1.tar.gz\r\n% tar xf libjpeg-turbo-1.5.1.tar.gz\r\n% cd libjpeg-turbo-1.5.1\r\n% CFLAGS='-O3' .\/configure --prefix=$HOME\r\n% make\r\n% make install\r\n<\/pre>\n<p>$HOME\u4e0b\u306einclude\u304a\u3088\u3073lib\u306e\u4e2d\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>make\u4e2d\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\uff1f\u304c\u51fa\u307e\u3057\u305f\u304c\u3001\u624b\u5143\u3067\u306f\u653e\u7f6e\u3057\u3066\u554f\u984c\u306a\u3055\u305d\u3046\u3067\u3057\u305f\uff08\u653e\u7f6e\u305b\u305a\u306b\u9811\u5f35\u3063\u305f\u3089\u3082\u3063\u3068\u901f\u304f\u306a\u308b\u3001\u3068\u304b\u3042\u308b\u306e\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u3068\u308a\u3042\u3048\u305a\u6df1\u8ffd\u3044\u3057\u3066\u3044\u307e\u305b\u3093\uff09\u3002<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\r\nlibtool:   error: ignoring unknown tag NASM\r\n<\/pre>\n<p>** OpenCV\u306e\u30d3\u30eb\u30c9<\/p>\n<p>\u57fa\u672c\u7684\u306b\u306f\u624b\u52d5\u3067OpenCV\u3092\u30d3\u30eb\u30c9\u3059\u308b\u3068\u304d\u306b\u3001cmake\u306b\u5bfe\u3057\u3066\u3044\u304f\u3064\u304b\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u8ffd\u52a0\u3059\u308b\u306e\u307f\u3067\u3059\u3002<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\n% cd \/tmp\r\n% git clone https:\/\/github.com\/opencv\/opencv.git\r\n% cd opencv\r\n% mkdir build\r\n% cd build\r\n% cmake -D WITH_JPEG=ON -D BUILD_JPEG=OFF -D JPEG_INCLUDE_DIR=$HOME\/include -D JPEG_LIBRARY=$HOME\/lib\/libjpeg.so ..\r\n% make -j128\r\n% make install\r\n<\/pre>\n<p>BUILD_JPEG\u306f3rdparty\u306b\u542b\u307e\u308c\u305flibjpeg\u3092OpenCV\u3068\u4e00\u7dd2\u306b\u30d3\u30eb\u30c9\u3059\u308b\u8a2d\u5b9a\u306a\u306e\u3067\u30aa\u30d5\u306b\u3057\u307e\u3059\u3002<br \/>\nJPEG_INCLUDE_DIR\u304a\u3088\u3073JPEG_LIBRARY_PATH\u306b\u6307\u5b9a\u3059\u308b\u30d1\u30b9\u306f\u3001libjpeg-turbo\u306e\u30d3\u30eb\u30c9\u6642\u306b\u6307\u5b9a\u3057\u305f\u5834\u6240\u306b\u5f93\u3063\u3066\u3088\u308d\u3057\u304f\u66f8\u304d\u63db\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>** \u30d9\u30f3\u30c1\u30de\u30fc\u30af<\/p>\n<p>\u4e0b\u8a18\u306e\u3088\u3046\u306a\u304b\u3093\u305f\u3093\u306aPython3\u30b3\u30fc\u30c9\u3067\u3001JPEG\u753b\u50cf\u306e\u30c7\u30b3\u30fc\u30c9\u901f\u5ea6\u3092\u6e2c\u3063\u3066\u307f\u307e\u3057\u305f\u3002<br \/>\n\u306a\u304a\u3001\u3053\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3092\u8d70\u3089\u305b\u308b\u306b\u306fPython3\u30b5\u30dd\u30fc\u30c8\u3064\u304d\u3067\u306eOpenCV\u30d3\u30eb\u30c9\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\uff08\u4e0a\u8a18cmake\u30aa\u30d7\u30b7\u30e7\u30f3\u306b\u306f\u542b\u307e\u308c\u3066\u3044\u307e\u305b\u3093\uff09\u3002<br \/>\nOpenCV with Python\u30b5\u30dd\u30fc\u30c8\u306e\u30d3\u30eb\u30c9\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u4ed6\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<br \/>\n[http:\/\/daily.belltail.jp\/?p=2523:title=OpenCV\u91ce\u826f\u30d3\u30eb\u30c9\u6642\u306bCMake\u304c\u6307\u5b9a\u3057\u305fPython\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u3046\u307e\u304f\u898b\u3064\u3051\u3066\u304f\u308c\u306a\u3044\u6642\u306f | \u3055\u304b\u306a\u524d\u7dda]\u306a\u3069\u304c\u53c2\u8003\u306b\u306a\u308c\u3070\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p><script src=\"https:\/\/gist.github.com\/belltailjp\/fed98e975cae577864cc5e4114a2b3d9.js\"><\/script><\/p>\n<p>Before<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\r\nmean=16.60989224910736ms, stdev=1.9476584857329726ms\r\n<\/pre>\n<p>After<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\r\nmean=9.50382836163044ms, stdev=1.1629280634224415ms\r\n<\/pre>\n<p>2\u500d\u8fd1\u304f\u9ad8\u901f\u306b\u306a\u308a\u307e\u3057\u305f\u3002<br \/>\n\u5727\u7e2e\u7387\u3084\u753b\u50cf\u30b5\u30a4\u30ba\u3084\u3082\u3061\u308d\u3093\u753b\u50cf\u306e\u5185\u5bb9\u306b\u3088\u3063\u3066\u3082\u5909\u308f\u308b\u3068\u306f\u601d\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u304a\u3044\u3057\u3044\u30d5\u30ea\u30fc\u30e9\u30f3\u30c1\u3067\u3059\u3002<\/p>\n<p>** \u53c2\u8003<\/p>\n<p>&#8211; [https:\/\/github.com\/atinfinity\/lab\/wiki\/OpenCV%E3%81%AEJPEG%E8%AA%AD%E3%81%BF%E6%9B%B8%E3%81%8D%E3%81%ABlibjpeg-turbo%E3%82%92%E4%BD%BF%E3%81%86:title=OpenCV\u306eJPEG\u8aad\u307f\u66f8\u304d\u306blibjpeg turbo\u3092\u4f7f\u3046 \u00b7 atinfinity\/lab Wiki]<br \/>\n&#8211; [http:\/\/unanancyowen.com\/opencv-with-libjpeg-turbo\/:title=Speed-Up JPEG Encode\/Decode Processing for OpenCV using libjpeg-turbo \u2013 Summary Blog]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u90fd\u9053\u5e9c\u770c\u5225\u306e\u4e00\u4eba\u3042\u305f\u308a\u9b5a\u4ecb\u985e\u6d88\u8cbb\u91cf\u3067\u306f\u3001\u9752\u68ee\u770c\u304c\u30c8\u30c3\u30d7\u3067\u3001\u4ee5\u4e0b\u79cb\u7530\u3001\u9ce5\u53d6\u3001\u65b0\u6f5f\u3001\u5bcc\u5c71\u3068\u65e5\u672c\u6d77\u5074\u306e\u770c\u304c\u7d9a\u304d\u307e\u3059\u3002\u5cf6\u56fd\u30fb\u6c96\u7e04\u304c\u610f\u5916\u306b\u3082\u6700\u4e0b\u4f4d\u3067\u3059\u3002 \u3055\u3066\u3001OpenCV\u3067\u753b\u50cf\u3092\u30ed\u30fc\u30c9\u3059\u308b\u306e\u3092\u901f\u304f\u3057\u305f\u304f\u3066\u3001JPEG\u306b\u3064\u3044\u3066\u306fli [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[31,7,17,38,10],"class_list":["post-2340","post","type-post","status-publish","format-standard","hentry","category-1","tag-computer-vision","tag-linux","tag-opencv","tag-38","tag-10"],"_links":{"self":[{"href":"https:\/\/daily.belltail.jp\/index.php?rest_route=\/wp\/v2\/posts\/2340","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/daily.belltail.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/daily.belltail.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/daily.belltail.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/daily.belltail.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2340"}],"version-history":[{"count":12,"href":"https:\/\/daily.belltail.jp\/index.php?rest_route=\/wp\/v2\/posts\/2340\/revisions"}],"predecessor-version":[{"id":2534,"href":"https:\/\/daily.belltail.jp\/index.php?rest_route=\/wp\/v2\/posts\/2340\/revisions\/2534"}],"wp:attachment":[{"href":"https:\/\/daily.belltail.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/daily.belltail.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/daily.belltail.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}