{"id":32244,"date":"2023-12-30T14:21:44","date_gmt":"2023-11-25T02:42:24","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8opencv-opencv4nodejs-node-js%e5%af%b9%e5%9b%be%e5%83%8f%e8%bf%9b%e8%a1%8c%e4%ba%ba%e8%84%b8%e6%a3%80%e6%b5%8b%e5%b9%b6%e8%bf%9b%e8%a1%8c%e9%81%ae%e7%bd%a9%e5%a4%84%e7%90%86%e3%80%82\/"},"modified":"2024-05-04T16:01:19","modified_gmt":"2024-05-04T08:01:19","slug":"%e4%bd%bf%e7%94%a8opencv-opencv4nodejs-node-js%e5%af%b9%e5%9b%be%e5%83%8f%e8%bf%9b%e8%a1%8c%e4%ba%ba%e8%84%b8%e6%a3%80%e6%b5%8b%e5%b9%b6%e8%bf%9b%e8%a1%8c%e9%81%ae%e7%bd%a9%e5%a4%84%e7%90%86%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8opencv-opencv4nodejs-node-js%e5%af%b9%e5%9b%be%e5%83%8f%e8%bf%9b%e8%a1%8c%e4%ba%ba%e8%84%b8%e6%a3%80%e6%b5%8b%e5%b9%b6%e8%bf%9b%e8%a1%8c%e9%81%ae%e7%bd%a9%e5%a4%84%e7%90%86%e3%80%82\/","title":{"rendered":"\u4f7f\u7528opencv\/opencv4nodejs\/Node.js\u5bf9\u56fe\u50cf\u8fdb\u884c\u4eba\u8138\u68c0\u6d4b\u5e76\u8fdb\u884c\u906e\u7f69\u5904\u7406"},"content":{"rendered":"<h1>\u52a8\u673a<\/h1>\n<p>\u6211\u60f3\u8981\u521b\u5efa\u4e00\u4e2a\u5de5\u5177\uff0c\u53ef\u4ee5\u5bf9\u4f7f\u7528\u524d\u7f6e\u6444\u50cf\u5934\u62cd\u6444\u7684\u5e26\u6709\u4eba\u7269\u6216\u5e26\u6709\u8138\u90e8\u7167\u7247\u7684\u8bc1\u4ef6\u7167\u7247\u8fdb\u884c\u8138\u90e8\u906e\u7f69\u3002<\/p>\n<h1>\u9009\u62e9\u8bed\u8a00<\/h1>\n<p>\u5728\u5e94\u7528\u753b\u50cf\u5904\u7406\u5e93opencv\u65f6\uff0c\u652f\u6301\u7684\u8bed\u8a00\u6709C\/C++\u3001Java\u548cPython\u3002\u6839\u636e\u8fd9\u6b21\u7684\u52a8\u673a\uff0c\u6211\u8ba4\u4e3aPython\u662f\u6700\u9002\u5408\u7684\u9009\u62e9\u3002Python\u6709\u5927\u91cf\u7684\u793a\u4f8b\u4ee3\u7801\u53ef\u4f9b\u53c2\u8003\u3002\u4f46\u662f\uff0c\u6211\u5bf9Python\u7684\u77e5\u8bc6\u4e86\u89e3\u8f83\u5c11\uff0c\u62c5\u5fc3\u4f1a\u82b1\u8d39\u8f83\u957f\u65f6\u95f4\u3002\u7136\u800c\uff0c\u6211\u627e\u5230\u4e86\u4e00\u4e2a\u53ef\u4ee5\u5728Node.js\u73af\u5883\u4e0b\u4f7f\u7528opencv\u7684\u5e93opencv4nodejs\uff0c\u6240\u4ee5\u51b3\u5b9a\u8bd5\u8bd5\u770b\u3002<\/p>\n<h2>\u5751\u6d1e<\/h2>\n<p>opencv4nodejs \u662f\u4e00\u4e2a\u4f7f\u7528 JavaScript \u7f16\u5199\u7684 OpenCV \u7ed1\u5b9a\u5e93\uff0c\u5b83\u4e0e\u539f\u59cb\u7684 OpenCV \u76f8\u6bd4\uff0c\u4e0d\u4ec5\u5728\u7c7b\u578b\u548c\u65b9\u6cd5\u4e0a\u6709\u6240\u5dee\u5f02\uff0c\u800c\u4e14\u8fd8\u4e0e JavaScript \u7684\u8bed\u8a00\u89c4\u8303\u76f8\u4e00\u81f4\uff0c\u5305\u62ec\u53c2\u6570\u7b49\u65b9\u9762\u4e5f\u6709\u6240\u4e0d\u540c\u3002\u56e0\u6b64\uff0c\u65e0\u6cd5\u7b80\u5355\u5730\u5c06 Python \u4ee3\u7801\u76f4\u63a5\u66ff\u6362\u4e3a opencv4nodejs \u7684\u4f7f\u7528\u65b9\u5f0f\u3002\u6211\u4e4b\u524d\u5bf9\u8fd9\u4e00\u70b9\u8003\u8651\u5f97\u6709\u4e9b\u592a\u8fc7\u7b80\u5355\uff0c\u5bfc\u81f4\u9047\u5230\u4e86\u4e00\u4e9b\u95ee\u9898\u3002<\/p>\n<h1>\u73af\u5883\u8bbe\u7acb<\/h1>\n<p>Windows10(64\u4f4d)\u4e0a\u5b89\u88c5\u4e86Nodist(0.9.1) Node.js 11.13.0\uff0c\u5e76\u4e14\u5b89\u88c5\u4e86opencv4nodejs(5.5.0)\u3002<\/p>\n<p>\u8fd9\u4e2a\u516c\u5f0f\u7684\u6b65\u9aa4\u8bf7\u770b\u8fd9\u91cc\u3002<\/p>\n<h2>\u4e8b\u524d\u63d0\u9192<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b9\u30da\u30fc\u30b9\u3092\u542b\u3080\u30d1\u30b9\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u306a\u3044 \u2192 node-gyp \u3067\u30d1\u30b9\u304c\u8aad\u3081\u306a\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u65e5\u672c\u8a9e\u3092\u542b\u3080\u30d1\u30b9\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u306a\u3044 \u2192 opencv\u3067\u30d1\u30b9\u304c\u8aad\u3081\u306a\u3044<\/ul>\n<h2>\u5b89\u88c5 CMake<\/h2>\n<p>\u5728\u5b89\u88c5 opencv4nodejs \u65f6\u4f1a\u63d0\u793a\u8981\u6c42\u5b89\u88c5\uff0c\u5982\u679c\u6ca1\u6709\u5b89\u88c5\u4f1a\u51fa\u9519\u65e0\u6cd5\u7ee7\u7eed\u8fdb\u884c\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5b89\u88c5 CMake<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u5c06\u8def\u5f84\u6dfb\u52a0\u5230\u5305\u542b\u53ef\u6267\u884c\u6587\u4ef6\u7684\u6587\u4ef6\u5939 \u4f8b\u5982\uff1aG:\\Program Files\\CMake\\bin<\/ol>\n<h2>git<\/h2>\n<p>\u8bbe\u7f6egit\u5141\u8bb8\u957f\u6587\u4ef6\u540d\uff08\u7528\u4e8eopencv4nodejs\u5185\u7684C++\u7f16\u8bd1\uff09<br \/>\ngit config &#8211;system core.longpaths true<\/p>\n<h2>npm\uff1a\u4e00\u79cd\u7528\u4e8eJavaScript\u5305\u7ba1\u7406\u7684\u5de5\u5177\u3002<\/h2>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4ee5\u4e0b\u662f\u8fd9\u4e9b\u547d\u4ee4\u7684\u4e2d\u6587\u7ffb\u8bd1\uff1a<\/ol>\n<\/li>\n<\/ol>\n<p>\u5b89\u88c5 node-gyp<br \/>\nnpm install &#8211;global node-gyp<br \/>\n\u5b89\u88c5 windows-build-tools<br \/>\nnpm install &#8211;global windows-build-tools<br \/>\n\u203b\u53ef\u80fd\u9700\u8981\u4e00\u4e9b\u65f6\u95f4<br \/>\n\u5b89\u88c5 opencv4nodejs<br \/>\nnpm install opencv4nodejs<br \/>\n\u203b\u53ef\u80fd\u9700\u8981\u5f88\u957f\u65f6\u95f4<\/p>\n<h1>\u5b9e\u65bd<\/h1>\n<p>\u6211\u7528TypeScript\u6765\u5199\u7684\u3002<\/p>\n<h2>\u4eba\u8138\u68c0\u6d4b<\/h2>\n<p>\u6211\u76f4\u63a5\u4f7f\u7528\u4e86\u793a\u4f8b\u4ee3\u7801\u3002\u5728opencv4nodejs\u4e2d\uff0c\u6709\u8bb8\u591a\u4e30\u5bcc\u7684\u793a\u4f8b\u6e90\u4ee3\u7801\u53ef\u4f9b\u4f7f\u7528\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"o\">*<\/span> <span class=\"k\">as<\/span> <span class=\"nx\">cv<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">opencv4nodejs<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">feceMaskBlur<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span><span class=\"nx\">imagePath<\/span><span class=\"p\">:<\/span><span class=\"kr\">string<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n\r\n  <span class=\"c1\">\/\/ \u5bfe\u8c61\u753b\u50cf\u8aad\u8fbc<\/span>\r\n  <span class=\"kd\">const<\/span> <span class=\"nx\">image<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">cv<\/span><span class=\"p\">.<\/span><span class=\"nx\">imread<\/span><span class=\"p\">(<\/span><span class=\"nx\">imagePath<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"o\">!<\/span><span class=\"nx\">image<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nb\">Error<\/span><span class=\"p\">(<\/span><span class=\"s2\">`No file <\/span><span class=\"p\">${<\/span><span class=\"nx\">imagePath<\/span><span class=\"p\">}<\/span><span class=\"s2\">`<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"kd\">const<\/span> <span class=\"nx\">classifier<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">cv<\/span><span class=\"p\">.<\/span><span class=\"nx\">CascadeClassifier<\/span><span class=\"p\">(<\/span><span class=\"nx\">cv<\/span><span class=\"p\">.<\/span><span class=\"nx\">HAAR_FRONTALFACE_ALT2<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"c1\">\/\/ detect faces<\/span>\r\n  <span class=\"kd\">const<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">objects<\/span><span class=\"p\">,<\/span> <span class=\"nx\">numDetections<\/span> <span class=\"p\">}<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">classifier<\/span><span class=\"p\">.<\/span><span class=\"nx\">detectMultiScale<\/span><span class=\"p\">(<\/span><span class=\"nx\">image<\/span><span class=\"p\">.<\/span><span class=\"nx\">bgrToGray<\/span><span class=\"p\">());<\/span>\r\n\r\n\r\n  <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"o\">!<\/span><span class=\"nx\">objects<\/span><span class=\"p\">.<\/span><span class=\"nx\">length<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nb\">Error<\/span><span class=\"p\">(<\/span><span class=\"s2\">`No faces detected!  <\/span><span class=\"p\">${<\/span><span class=\"nx\">imagePath<\/span><span class=\"p\">}<\/span><span class=\"s2\">`<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\u9854\u691c\u51fa\u3057\u305f\u9818\u57df:<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">objects<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\u78ba\u5ea6:<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">numDetections<\/span><span class=\"p\">);<\/span>\r\n\r\n  <span class=\"c1\">\/\/ draw detection<\/span>\r\n  <span class=\"kd\">let<\/span> <span class=\"na\">blurImage<\/span><span class=\"p\">:<\/span><span class=\"nx\">cv<\/span><span class=\"p\">.<\/span><span class=\"nx\">Mat<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nx\">blurImage<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">image<\/span><span class=\"p\">.<\/span><span class=\"nx\">copy<\/span><span class=\"p\">();<\/span>\r\n  <span class=\"nx\">objects<\/span><span class=\"p\">.<\/span><span class=\"nx\">forEach<\/span><span class=\"p\">((<\/span><span class=\"nx\">rect<\/span><span class=\"p\">,<\/span> <span class=\"nx\">i<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"c1\">\/\/ \u9854\u691c\u51fa\u3057\u305f\u90e8\u5206\u306b\u5bfe\u3057\u3066\u30de\u30b9\u30af\u3092\u5b9f\u65bd<\/span>\r\n    <span class=\"nx\">blurImage<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">drawBlurRect<\/span><span class=\"p\">(<\/span><span class=\"nx\">blurImage<\/span><span class=\"p\">,<\/span> <span class=\"nx\">rect<\/span><span class=\"p\">,<\/span> <span class=\"nx\">numDetections<\/span><span class=\"p\">[<\/span><span class=\"nx\">i<\/span><span class=\"p\">]);<\/span>\r\n  <span class=\"p\">});<\/span>\r\n\r\n  <span class=\"c1\">\/\/ file \u4fdd\u5b58<\/span>\r\n  <span class=\"nx\">cv<\/span><span class=\"p\">.<\/span><span class=\"nx\">imwrite<\/span><span class=\"p\">(<\/span><span class=\"nx\">imagePath<\/span><span class=\"p\">,<\/span> <span class=\"nx\">blurImage<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"p\">}<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u5750\u6807\u548c\u5927\u5c0f\u83b7\u53d6\u68c0\u6d4b\u5230\u7684\u533a\u57df\u3002<\/p>\n<pre class=\"post-pre\"><code>\u9854\u691c\u51fa\u3057\u305f\u9818\u57df: [ Rect { height: 525, width: 525, y: 1188, x: 1923 },\r\n  Rect { height: 262, width: 262, y: 3214, x: 2298 },\r\n  Rect { height: 584, width: 584, y: 878, x: 2714 } ]\r\n\u78ba\u5ea6: [ 8, 4, 11 ]\r\n<\/code><\/pre>\n<h2>\u8986\u76d6\u90e8\u5206\u7684\u56fe\u7247<\/h2>\n<p>\u9488\u5bf9\u4e0a\u8ff0\u83b7\u53d6\u7684\u533a\u57df\uff0c\u6211\u4eec\u4f1a\u5e94\u7528\u63a9\u7801\u3002\u5728Python\u4e2d\uff0c\u56fe\u50cf\u6570\u636e\u4ee5\u4e8c\u7ef4\u6570\u7ec4\u7684\u5f62\u5f0f\u52a0\u8f7d\uff0c\u56e0\u6b64\u53ef\u4ee5\u901a\u8fc7\u6307\u5b9a\u5750\u6807\u4f4d\u7f6e\u8fdb\u884c\u8d4b\u503c\u3002\u4f46\u662f\u5728opencv4nodejs\u4e2d\uff0c\u7531\u4e8e\u683c\u5f0f\u4e0d\u540c\uff0c\u8ba9\u6211\u6709\u4e9b\u56f0\u60d1\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">def<\/span> <span class=\"nf\">mosaic_area<\/span><span class=\"p\">(<\/span><span class=\"n\">src<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span><span class=\"p\">,<\/span> <span class=\"n\">y<\/span><span class=\"p\">,<\/span> <span class=\"n\">width<\/span><span class=\"p\">,<\/span> <span class=\"n\">height<\/span><span class=\"p\">,<\/span> <span class=\"n\">ratio<\/span><span class=\"o\">=<\/span><span class=\"mf\">0.1<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"n\">dst<\/span> <span class=\"o\">=<\/span> <span class=\"n\">src<\/span><span class=\"p\">.<\/span><span class=\"n\">copy<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"n\">dst<\/span><span class=\"p\">[<\/span><span class=\"n\">y<\/span><span class=\"p\">:<\/span><span class=\"n\">y<\/span> <span class=\"o\">+<\/span> <span class=\"n\">height<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span><span class=\"p\">:<\/span><span class=\"n\">x<\/span> <span class=\"o\">+<\/span> <span class=\"n\">width<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"n\">mosaic<\/span><span class=\"p\">(<\/span><span class=\"n\">dst<\/span><span class=\"p\">[<\/span><span class=\"n\">y<\/span><span class=\"p\">:<\/span><span class=\"n\">y<\/span> <span class=\"o\">+<\/span> <span class=\"n\">height<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span><span class=\"p\">:<\/span><span class=\"n\">x<\/span> <span class=\"o\">+<\/span> <span class=\"n\">width<\/span><span class=\"p\">],<\/span> <span class=\"n\">ratio<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">dst<\/span>\r\n\r\n<span class=\"n\">dst_area<\/span> <span class=\"o\">=<\/span> <span class=\"n\">mosaic_area<\/span><span class=\"p\">(<\/span><span class=\"n\">src<\/span><span class=\"p\">,<\/span> <span class=\"mi\">100<\/span><span class=\"p\">,<\/span> <span class=\"mi\">50<\/span><span class=\"p\">,<\/span> <span class=\"mi\">100<\/span><span class=\"p\">,<\/span> <span class=\"mi\">150<\/span><span class=\"p\">)<\/span>\r\n<span class=\"n\">cv2<\/span><span class=\"p\">.<\/span><span class=\"n\">imwrite<\/span><span class=\"p\">(<\/span><span class=\"s\">'data\/dst\/opencv_mosaic_area.jpg'<\/span><span class=\"p\">,<\/span> <span class=\"n\">dst_area<\/span><span class=\"p\">)<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u4f7f\u7528Python\u548cOpenCV\u5bf9\u56fe\u50cf\u8fdb\u884c\u9a6c\u8d5b\u514b\u5904\u7406\uff08\u5168\u56fe\u3001\u5c40\u90e8\u3001\u4eba\u8138\u7b49\uff09\u3002<\/p>\n<p>\u6211\u5728\u641c\u7d22\u4e2d\u627e\u5230\u4e86\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"c1\">\/\/ \u5bfe\u8c61\u306eRect\u3092\u5857\u308a\u3064\u3076\u3057<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">drawBlurRect<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span><span class=\"nx\">image<\/span><span class=\"p\">:<\/span> <span class=\"nx\">cv<\/span><span class=\"p\">.<\/span><span class=\"nx\">Mat<\/span><span class=\"p\">,<\/span> <span class=\"nx\">rect<\/span><span class=\"p\">:<\/span> <span class=\"nx\">cv<\/span><span class=\"p\">.<\/span><span class=\"nx\">Rect<\/span><span class=\"p\">,<\/span> <span class=\"nx\">numDetection<\/span><span class=\"p\">:<\/span> <span class=\"kr\">number<\/span><span class=\"p\">):<\/span><span class=\"nx\">cv<\/span><span class=\"p\">.<\/span><span class=\"nx\">Mat<\/span>  <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"c1\">\/\/ \u9818\u57df\u306e\u5207\u308a\u51fa\u3057<\/span>\r\n  <span class=\"kd\">const<\/span> <span class=\"na\">srcRoi<\/span><span class=\"p\">:<\/span><span class=\"nx\">cv<\/span><span class=\"p\">.<\/span><span class=\"nx\">Mat<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">image<\/span><span class=\"p\">.<\/span><span class=\"nx\">getRegion<\/span><span class=\"p\">(<\/span><span class=\"nx\">rect<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"c1\">\/\/ \u5207\u308a\u51fa\u3057\u305f\u90e8\u5206\u306b\u30de\u30b9\u30af\u3092\u304b\u3051\u308b<\/span>\r\n  <span class=\"kd\">const<\/span> <span class=\"nx\">masked<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">cv<\/span><span class=\"p\">.<\/span><span class=\"nx\">blur<\/span><span class=\"p\">(<\/span><span class=\"nx\">srcRoi<\/span><span class=\"p\">,<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">cv<\/span><span class=\"p\">.<\/span><span class=\"nx\">Size<\/span><span class=\"p\">(<\/span><span class=\"nx\">rect<\/span><span class=\"p\">.<\/span><span class=\"nx\">width<\/span><span class=\"p\">,<\/span><span class=\"nx\">rect<\/span><span class=\"p\">.<\/span><span class=\"nx\">height<\/span><span class=\"p\">));<\/span>\r\n  <span class=\"c1\">\/\/ \u5207\u308a\u51fa\u3057\u305f\u90e8\u5206\u3092\u5143\u753b\u50cf\u306b\u5408\u6210<\/span>\r\n  <span class=\"nx\">masked<\/span><span class=\"p\">.<\/span><span class=\"nx\">copyTo<\/span><span class=\"p\">(<\/span><span class=\"nx\">image<\/span><span class=\"p\">.<\/span><span class=\"nx\">getRegion<\/span><span class=\"p\">(<\/span><span class=\"nx\">rect<\/span><span class=\"p\">));<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"nx\">image<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<\/code><\/pre>\n<h1>\u6267\u884c<\/h1>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d10ab37434c4406bf1942\/32-0.jpeg\" alt=\"undefined\" \/><\/div>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d10ab37434c4406bf1942\/33-0.jpeg\" alt=\"undefined\" \/><\/div>\n<h1>\u603b\u7ed3\u548c\u89c9\u5bdf<\/h1>\n<p>\u5982\u679c\u8981\u4ece\u56fe\u50cf\u4e2d\u8bc6\u522b\u51fa\u67d0\u7269\uff0c\u53ef\u4ee5\u4f7f\u7528\u8bc6\u522b\u5668\uff0cOpenCV\u4e2d\u5df2\u7ecf\u51c6\u5907\u4e86\u7528\u4e8e\u6b64\u8bc6\u522b\u7684\u9884\u8bad\u7ec3\u6587\u4ef6\u3002<\/p>\n<p>\u8fd9\u6b21\u6211\u4eec\u4f7f\u7528\u4e86Haar Cascade\u8bc6\u522b\u5668\u7684haarcascade_frontalface_alt2.xml\uff08\u5728\u4ee3\u7801\u4e2d\u88ab\u79f0\u4e3acv.HAAR_FRONTALFACE_ALT2\uff09\uff08\u5982\u793a\u4f8b\u6240\u793a\uff09\u3002<\/p>\n<p>\u8003\u8651\u5230\u672c\u6b21\u4e3b\u8981\u4f7f\u7528\u524d\u7f6e\u6444\u50cf\u5934\u62cd\u6444\u6b63\u9762\u7167\u7247\uff0c\u56e0\u6b64\u9762\u90e8\u8bc6\u522b\u5339\u914d\u6210\u529f\uff0c\u4f46\u662f\u9700\u8981\u6ce8\u610f\u7684\u662f\u4fa7\u8138\u7684\u8bc6\u522b\u8f83\u56f0\u96be\u3002<\/p>\n<h1>\u8bf7\u63d0\u4f9b\u66f4\u591a\u4e0a\u4e0b\u6587\u3002<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u3010\u5165\u9580\u8005\u5411\u3051\u89e3\u8aac\u3011openCV\u9854\u691c\u51fa\u306e\u4ed5\u7d44\u3068\u5b9f\u8df5(detectMultiScale)<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">OpenCV-CookBook \u753b\u50cf\u51e6\u7406<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u52a8\u673a \u6211\u60f3\u8981\u521b\u5efa\u4e00\u4e2a\u5de5\u5177\uff0c\u53ef\u4ee5\u5bf9\u4f7f\u7528\u524d\u7f6e\u6444\u50cf\u5934\u62cd\u6444\u7684\u5e26\u6709\u4eba\u7269\u6216\u5e26\u6709\u8138\u90e8\u7167\u7247\u7684\u8bc1\u4ef6\u7167\u7247\u8fdb\u884c\u8138\u90e8\u906e\u7f69\u3002 \u9009\u62e9\u8bed\u8a00  [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-32244","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized 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\u6211\u60f3\u8981\u521b\u5efa\u4e00\u4e2a\u5de5\u5177\uff0c\u53ef\u4ee5\u5bf9\u4f7f\u7528\u524d\u7f6e\u6444\u50cf\u5934\u62cd\u6444\u7684\u5e26\u6709\u4eba\u7269\u6216\u5e26\u6709\u8138\u90e8\u7167\u7247\u7684\u8bc1\u4ef6\u7167\u7247\u8fdb\u884c\u8138\u90e8\u906e\u7f69\u3002 \u9009\u62e9\u8bed\u8a00 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528opencv-opencv4nodejs-node-js\u5bf9\u56fe\u50cf\u8fdb\u884c\u4eba\u8138\u68c0\u6d4b\u5e76\u8fdb\u884c\u906e\u7f69\u5904\u7406\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-11-25T02:42:24+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-04T08:01:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d10ab37434c4406bf1942\/32-0.jpeg\" \/>\n<meta name=\"author\" content=\"\u5b87, \u534e\" \/>\n<meta name=\"twitter:card\" 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