{"id":136,"date":"2020-04-22T22:38:40","date_gmt":"2020-04-22T14:38:40","guid":{"rendered":"http:\/\/iotch.xyz\/?p=136"},"modified":"2020-04-22T22:38:40","modified_gmt":"2020-04-22T14:38:40","slug":"%e3%80%90%e6%89%8b%e6%8a%8a%e6%89%8b%e6%95%99%e5%ad%a6-%e8%b6%85%e7%ae%80%e5%8d%95%e3%80%91%e6%a0%91%e8%8e%93%e6%b4%be%e5%ae%89%e8%a3%85opencv-3","status":"publish","type":"post","link":"https:\/\/www.iotch.xyz\/?p=136","title":{"rendered":"\u3010\u624b\u628a\u624b\u6559\u5b66\u2014\u8d85\u7b80\u5355\u3011\u6811\u8393\u6d3e\u5b89\u88c5OpenCV 3"},"content":{"rendered":"\n<p>\u66f4\u65b0\uff1a<br>\u542c\u8bf4\u5927\u5bb6OpenCV \u7684\u5b89\u88c5\u8fc7\u7a0b\u51fa\u73b0\u5f88\u591a\u6211\u8fd9\u7bc7\u535a\u5ba2\u5e76\u6ca1\u6709\u5217\u4e3e\u7684\u5751\uff0c\u6240\u4ee5\u4e3a\u4e86\u4e00\u63a2\u7a76\u7adf\uff0c\u6211\u91cd\u65b0\u7528\u53e6\u4e00\u5757\u6811\u8393\u6d3e\u5b89\u88c5\u4e86\u4e00\u6b21OpenCV\uff0c\u7279\u6b64\u8bb0\u5f55\u5e76\u5bf9\u535a\u5ba2\u4f5c\u51fa\u4e00\u4e9b\u4fee\u6539\u3002<\/p>\n\n\n\n<p>\u9996\u5148\u628a\u51c6\u5907\u5de5\u4f5c\u505a\u597d\uff0c\u5148\u786e\u4fdd\u5df2\u7ecf\u66f4\u6362\u597d\u6e90\uff1a\u6811\u8393\u6d3e\u6362\u6e90<br>\u9996\u5148\u8bf4\u8bf4\u914d\u7f6e\uff1a\u6211\u7684\u6811\u8393\u6d3e\u662f2018\u5e7411\u6708\u4efd\u4e70\u7684\uff0c\u7cfb\u7edf\u662f2018-11-13-raspbian-stretch<br>\u9644\u4e0a\uff1a\u6811\u8393\u6d3e\u7cfb\u7edf\u4e0b\u8f7d\u5730\u5740<br>\u672c\u6587\u4ee3\u7801\u5747\u53ef\u76f4\u63a5\u590d\u5236\u8fdbshell<br>1.\u5b89\u88c5OpenCV \u4f9d\u8d56\u5305\uff1a<br>a. \u66f4\u65b0\u8f6f\u4ef6\u6e90 + \u5347\u7ea7\u5b89\u88c5\u5305 + \u5347\u7ea7\u56fa\u4ef6<br>sudo apt-get update<br>1<br>sudo apt-get upgrade<br>1<br>\u56fa\u4ef6\u8f83\u65b0\u6216Ubuntu \u5219\u53ef\u5ffd\u7565\u6b64\u6b65\uff1a<br>sudo rpi-update<br>1<br>b. \u5b89\u88c5\u6784\u5efaOpenCV \u76f8\u5173\u7684\u5de5\u5177<br>sudo apt-get install build-essential cmake git pkg-config<br>1<br>\u5176\u4e2d\u5305\u62ecbuild-essential\u3001cmake\u3001git\u548cpkg-config<br>c. \u5b89\u88c5\u5e38\u7528\u56fe\u50cf\u5de5\u5177\u5305<br>jpeg\u683c\u5f0f\u56fe\u50cf\u5de5\u5177\u5305\uff1a<br>sudo apt-get install libjpeg8-dev<br>1<br>tif\u683c\u5f0f\u56fe\u50cf\u5de5\u5177\u5305\uff1a<br>sudo apt-get install libtiff5-dev<br>1<br>jpeg-2000\u56fe\u50cf\u5de5\u5177\u5305\uff1a<br>sudo apt-get install libjasper-dev<br>1<br>png\u56fe\u50cf\u5de5\u5177\u5305\uff1a<br>sudo apt-get install libpng12-dev<br>1<br>d. \u5b89\u88c5\u89c6\u9891I\/O\u5305<br>sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev<br>1<br>e. \u5b89\u88c5gtk2.0<br>sudo apt-get install libgtk2.0-dev<br>1<br>f. \u4f18\u5316\u51fd\u6570\u5305<br>sudo apt-get install libatlas-base-dev gfortran<br>1<br>\u81f3\u6b64\uff0cOpenCV \u4f9d\u8d56\u5305\u5df2\u7ecf\u5168\u90e8\u5b89\u88c5\u5b8c\u6210\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\"><li>\u7f16\u8bd1OpenCV\u6e90\u4ee3\u7801\u7684\u51c6\u5907\u5de5\u4f5c\uff1a<br>a. \u4e0b\u8f7dOpenCV<br>\u4f7f\u7528wget\u5de5\u5177\u4e0b\u8f7dOpenCV \u538b\u7f29\u5305\u5230\u7528\u6237\u76ee\u5f55\u4e0b\uff1a<br>wget -O opencv-3.4.1.zip https:\/\/github.com\/Itseez\/opencv\/archive\/3.4.1.zip<br>1<br>\u89e3\u538bOpenCV\uff1a<br>unzip opencv-3.4.1.zip<br>1<br>\u4e0b\u8f7dOpenCV_contrib\u5e93\uff1a<br>wget -O opencv_contrib-3.4.1.zip https:\/\/github.com\/Itseez\/opencv_contrib\/archive\/3.4.1.zip<br>1<br>\u89e3\u538bOpenCV_contrib\u5e93\uff1a<br>unzip opencv_contrib-3.4.1.zip<br>1<br>b. \u8fdb\u5165\u89e3\u538b\u540e\u7684OpenCV \u6e90\u7801\u6587\u4ef6\u5939<br>cd opencv-3.4.1<br>1<br>c. \u65b0\u5efa\u4e00\u4e2a\u540d\u4e3arelease\u7684\u6587\u4ef6\u5939\u7528\u6765\u5b58\u653ecmake\u7f16\u8bd1\u65f6\u4ea7\u751f\u7684\u4e34\u65f6\u6587\u4ef6<br>mkdir release<br>1<br>cd release<br>1<br>d. \u914d\u7f6ecmake\u7f16\u8bd1\u53c2\u6570<br>\u6b64\u5904\u6709\u7b2c\u4e00\u4e2a\u5751<br>sudo cmake -D CMAKE_BUILD_TYPE=RELEASE \\<br>-D CMAKE_INSTALL_PREFIX=\/usr\/local \\<br>-D OPENCV_EXTRA_MODULES_PATH=~\/opencv_contrib-3.4.1\/modules \\<br>-D INSTALL_PYTHON_EXAMPLES=ON \\<br>-D BUILD_EXAMPLES=ON ..<br>12345<br>\u5176\u4e2d\u53c2\u6570\u7b80\u4ecb\uff1a<\/li><\/ol>\n\n\n\n<p>\u53c2\u6570<br>\u4f5c\u7528<\/p>\n\n\n\n<p>CMAKE_BUILD_TYPE=RELEASE<br>\u7f16\u8bd1\u65b9\u5f0f<\/p>\n\n\n\n<p>CMAKE_INSTALL_PREFIX<br>\u5b89\u88c5\u76ee\u5f55<\/p>\n\n\n\n<p>OPENCV_EXTRA_MODULES_PATH<br>\u52a0\u8f7d\u989d\u5916\u6a21\u5757<\/p>\n\n\n\n<p>INSTALL_PYTHON_EXAMPLES<br>\u5b89\u88c5\u5b98\u65b9python\u4f8b\u7a0b<\/p>\n\n\n\n<p>BUILD_EXAMPLES<br>\u7f16\u8bd1\u4f8b\u7a0b<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\"><li>\u6b63\u5f0f\u5f00\u59cb\u7f16\u8bd1\uff1a<br>\u6b64\u5904\u6709\u7b2c\u4e8c\u4e2a\u5751<br>a. \u7f16\u8bd1<br>\u6b64\u8fc7\u7a0b\u6781\u4e3a\u6f2b\u957f\uff0c\u6211\u4e00\u5171\u7f16\u8bd1\u4e864\u4e2a\u5c0f\u65f6\uff01\uff01\uff01<br>sudo make<br>1<br>b. \u5b89\u88c5<br>sudo make install<br>1<br>c. \u66f4\u65b0\u52a8\u6001\u94fe\u63a5\u5e93<br>sudo ldconfig<br>1<br>\u606d\u559c\uff01\u60a8\u5df2\u6210\u529f\u5b89\u88c5OpenCV\uff01<br>\u4e0b\u9762\u5c31\u6765\u5229\u7528\u4e00\u4e2a\u7b80\u5355\u7684Python \u7a0b\u5e8f\u68c0\u9a8c\u4e00\u4e0bOpenCV \u662f\u5426\u6b63\u5e38\u5de5\u4f5c<\/li><\/ol>\n\n\n\n<h1 class=\"wp-block-heading\">--coding:utf-8--<\/h1>\n\n\n\n<p>import cv2<br>import numpy as np<br>cv2.namedWindow(\"gray\")<br>img = np.zeros((512,512),np.uint8) #\u751f\u6210\u4e00\u5f20\u7a7a\u7684\u7070\u5ea6\u56fe\u50cf<br>cv2.line(img,(0,0),(511,511),255,5) #\u7ed8\u5236\u4e00\u6761\u767d\u8272\u76f4\u7ebf<br>cv2.imshow(\"gray\",img) #\u663e\u793a\u56fe\u50cf<\/p>\n\n\n\n<p>while True: #\u5faa\u73af\u7b49\u5f85\uff0c\u6309q\u952e\u9000\u51fa<br>key=cv2.waitKey(1)<br>if key==ord(\"q\"):<br>break<br>cv2.destoryWindow(\"gray\")<br>12345678910111213<br>\u82e5OpenCV \u6b63\u5e38\u5de5\u4f5c\uff0c\u5219\u5c4f\u5e55\u663e\u793a\u4e00\u6761\u767d\u8272\u659c\u7ebf\uff1a<\/p>\n\n\n\n<p>\u6700\u540e\u8bf4\u4e00\u53e5\uff0c\u5728\u6b64\u6211\u6781\u5ea6\u5efa\u8bae\u5927\u5bb6\u5907\u4efd\u4e00\u4e0b\uff0c\u4e0d\u7136\u82b1\u4e86\u90a3\u4e48\u957f\u65f6\u95f4\u5b89\u88c5\u597d\uff0c\u4e07\u4e00\u51fa\u4e86\u70b9\u5dee\u9519\uff0cTF\u5361\u574f\u4e86\uff0c\u90a3\u771f\u662f\u2026\u54d4\u4e86\u72d7\u4e86<br>\u586b\u5751<br>\u4e00\u3001<br>\u82e5\u4e0a\u8ff0\u7b2c\u4e00\u4e2a\u5751\u5904\u4e0d\u80fd\u6b63\u5e38\u7f16\u8bd1\uff0c\u8bd5\u7740\u628a\u540e\u97623\u4e2a\u53c2\u6570\u53bb\u6389\uff0c\u5373\uff1a<br>sudo cmake -D CMAKE_BUILD_TYPE=RELEASE \\<br>-D CMAKE_INSTALL_PREFIX=\/usr\/local ..<br>12<br>\u4e8c\u3001\u6e90\u7801\u9519\u8bef<br>\u8fd9\u91cc\u51fa\u95ee\u9898\u4e86\uff0c\u4e00\u5b9a\u8981\u4ed4\u7ec6\u770b\u9519\u8bef\u4fe1\u606f\uff0c\u627e\u51fa\u6765Error \u5230\u5e95\u662f\u4ec0\u4e48\u3002<br>\u8fd9\u91cc\u5c31\u51fa\u73b0\u4e86\u4e00\u4e2a\u56e0\u4e3a\u6e90\u7801\u95ee\u9898\u800c\u4e0d\u80fd\u6b63\u5e38\u8fdb\u884c\u4e0b\u53bb\u7684\u9519\u8bef\uff1a<br>error: invalid conversion from 'const char<em>' to 'char<\/em>'<br>1<br>\u89e3\u51b3\u529e\u6cd5\u5728\u6b64\uff1ahttps:\/\/bugs.gentoo.org\/691480<br>\u5373\u627e\u5230\u9519\u8bef\u4fe1\u606f\u4e2d\u63d0\u5230\u7684\u6587\u4ef6\u5e76\u6253\u5f00\uff0c\u7136\u540e\u4fee\u6539\uff1a<br>if(!obj || obj == Py_None)<br>return true;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>char* str = PyString_AsString(obj);<\/li><li>const char* str = PyString_AsString(obj);<br>if(!str)<br>return false;<br>value = String(str);<br>1234567<br>\u53bb\u6389char* str = PyString_AsString(obj);\uff0c\u52a0\u4e0aconst char* str = PyString_AsString(obj);<\/li><\/ul>\n\n\n\n<p class=\"has-text-color has-vivid-red-color\">\u6700\u540e\uff0c\u82e5\u9047\u4e0a\u4ec0\u4e48\u95ee\u9898\uff0c\u53ef\u4ee5\u770b\u770b\u8fd9\u91cc\u6709\u6ca1\u6709\u89e3\u51b3\u65b9\u6848\uff1a<br><a href=\"https:\/\/bugs.gentoo.org\/691480\nhttp:\/\/cn.waterlin.org\/CVCG\/OpenCV-installation-error.html\nhttps:\/\/www.jianshu.com\/p\/259a6140da9d\nhttps:\/\/github.com\/opencv\/opencv\/issues\/12957\" target=\"_blank\"  rel=\"nofollow\" >https:\/\/bugs.gentoo.org\/691480<br>http:\/\/cn.waterlin.org\/CVCG\/OpenCV-installation-error.html<br>https:\/\/www.jianshu.com\/p\/259a6140da9d<br>https:\/\/github.com\/opencv\/opencv\/issues\/12957<\/a><br>\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014<br>\u7248\u6743\u58f0\u660e\uff1a\u672c\u6587\u4e3aCSDN\u535a\u4e3b\u300cWaao666\u300d\u7684\u539f\u521b\u6587\u7ae0\uff0c\u9075\u5faa CC 4.0 BY-SA \u7248\u6743\u534f\u8bae\uff0c\u8f6c\u8f7d\u8bf7\u9644\u4e0a\u539f\u6587\u51fa\u5904\u94fe\u63a5\u53ca\u672c\u58f0\u660e\u3002<br>\u539f\u6587\u94fe\u63a5\uff1a<a href=\"https:\/\/blog.csdn.net\/weixin_40973138\/java\/article\/details\/84197532\" target=\"_blank\"  rel=\"nofollow\" >https:\/\/blog.csdn.net\/weixin_40973138\/java\/article\/details\/84197532<\/a><\/p>\n<button class=\"simplefavorite-button\" data-postid=\"136\" data-siteid=\"1\" data-groupid=\"1\" data-favoritecount=\"0\" style=\"\">\u6536\u85cf <i class=\"sf-icon-star-empty\"><\/i><\/button>","protected":false},"excerpt":{"rendered":"<p>\u66f4\u65b0\uff1a\u542c\u8bf4\u5927\u5bb6OpenCV \u7684\u5b89\u88c5\u8fc7\u7a0b\u51fa\u73b0\u5f88\u591a\u6211\u8fd9\u7bc7\u535a\u5ba2\u5e76\u6ca1\u6709\u5217\u4e3e\u7684\u5751\uff0c\u6240\u4ee5\u4e3a\u4e86\u4e00\u63a2\u7a76\u7adf\uff0c\u6211\u91cd\u65b0\u7528\u53e6\u4e00\u5757\u6811\u8393\u6d3e\u5b89\u88c5\u4e86\u4e00\u6b21OpenC &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-136","post","type-post","status-publish","format-standard","hentry","category-11"],"_links":{"self":[{"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=\/wp\/v2\/posts\/136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=136"}],"version-history":[{"count":0,"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=\/wp\/v2\/posts\/136\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iotch.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}