{"id":108437,"date":"2026-09-21T19:32:48","date_gmt":"2026-09-21T11:32:48","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/108437.html"},"modified":"2026-09-21T19:32:48","modified_gmt":"2026-09-21T11:32:48","slug":"opencv%e5%ad%a6%e4%b9%a0%ef%bc%9a%e6%80%a7%e5%88%ab%e4%b8%8e%e5%b9%b4%e9%be%84%e8%af%86%e5%88%ab","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/108437.html","title":{"rendered":"OpenCV\u5b66\u4e60\uff1a\u6027\u522b\u4e0e\u5e74\u9f84\u8bc6\u522b"},"content":{"rendered":"<h2>OpenCV\u5b66\u4e60&#xff1a;\u6027\u522b\u4e0e\u5e74\u9f84\u8bc6\u522b<\/h2>\n<p>\u524d\u8a00&#xff1a;\u524d\u9762\u51e0\u7bc7\u6211\u4eec\u5b66\u4e60\u4e86\u4eba\u8138\u68c0\u6d4b\u3001\u5173\u952e\u70b9\u68c0\u6d4b\u3001\u8f6e\u5ed3\u7ed8\u5236\u3001\u8868\u60c5\u8bc6\u522b\u548c\u75b2\u52b3\u68c0\u6d4b\u3002\u8fd9\u4e9b\u6280\u672f\u90fd\u662f\u57fa\u4e8e\u4eba\u8138\u5173\u952e\u70b9\u6216\u51e0\u4f55\u6bd4\u4f8b\u5b9e\u73b0\u7684\u3002\u672c\u7bc7\u6211\u4eec\u5c06\u5f15\u5165\u4e00\u4e2a\u66f4\u5f3a\u5927\u7684\u5de5\u5177\u2014\u2014OpenCV \u7684 DNN \u6a21\u5757&#xff0c;\u901a\u8fc7\u52a0\u8f7d\u9884\u8bad\u7ec3\u7684\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b&#xff0c;\u5b9e\u73b0\u6027\u522b\u548c\u5e74\u9f84\u8bc6\u522b\u3002\u53ea\u9700\u8981\u4e00\u5f20\u4eba\u8138\u56fe\u7247&#xff0c;\u6a21\u578b\u5c31\u80fd\u8f93\u51fa\u6027\u522b&#xff08;\u7537\/\u5973&#xff09;\u548c\u5e74\u9f84\u6bb5\u3002<\/p>\n<h3>\u76ee\u5f55<\/h3>\n<ul>\n<li>\u4e00\u3001\u9879\u76ee\u6982\u8ff0<\/li>\n<li>\u4e8c\u3001\u6a21\u578b\u51c6\u5907<\/li>\n<li>\u4e09\u3001DNN \u6a21\u5757\u57fa\u7840<\/li>\n<li>\u56db\u3001\u5b8c\u6574\u4ee3\u7801<\/li>\n<li>\u4e94\u3001\u7ed3\u679c\u8bf4\u660e<\/li>\n<li>\u516d\u3001\u603b\u7ed3<\/li>\n<\/ul>\n<h3>\u4e00\u3001\u9879\u76ee\u6982\u8ff0<\/h3>\n<h4>1.1 \u5b9e\u73b0\u76ee\u6807<\/h4>\n<p>\u901a\u8fc7\u6444\u50cf\u5934\u5b9e\u65f6\u68c0\u6d4b\u4eba\u8138&#xff0c;\u5224\u65ad\u753b\u9762\u4e2d\u4eba\u7269\u7684\u6027\u522b\u548c\u5e74\u9f84\u6bb5\u3002<\/p>\n<table>\n<tr>\u8bc6\u522b\u4efb\u52a1\u8f93\u51fa<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">\u6027\u522b<\/td>\n<td align=\"left\">\u7537\u6027 \/ \u5973\u6027<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u5e74\u9f84\u6bb5<\/td>\n<td align=\"left\">0-2\u5c81 \/ 4-6\u5c81 \/ 8-12\u5c81 \/ 15-20\u5c81 \/ 25-32\u5c81 \/ 38-43\u5c81 \/ 48-53\u5c81 \/ 60-100\u5c81<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u4e8c\u3001\u6a21\u578b\u51c6\u5907<\/h3>\n<h4>2.1 \u9700\u8981\u7684\u6a21\u578b\u6587\u4ef6<\/h4>\n<p>\u6027\u522b\u5e74\u9f84\u8bc6\u522b\u9700\u8981\u4e09\u7ec4\u6a21\u578b\u6587\u4ef6&#xff1a;<\/p>\n<table>\n<tr>\u7528\u9014\u914d\u7f6e\u6587\u4ef6\u6743\u91cd\u6587\u4ef6<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">\u4eba\u8138\u68c0\u6d4b<\/td>\n<td align=\"left\">opencv_face_detector.pbtxt<\/td>\n<td align=\"left\">opencv_face_detector_uint8.pb<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u5e74\u9f84\u8bc6\u522b<\/td>\n<td align=\"left\">deploy_age.prototxt<\/td>\n<td align=\"left\">age_net.caffemodel<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u6027\u522b\u8bc6\u522b<\/td>\n<td align=\"left\">deploy_gender.prototxt<\/td>\n<td align=\"left\">gender_net.caffemodel<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>2.2 \u6a21\u578b\u6587\u4ef6\u8bf4\u660e<\/h4>\n<table>\n<tr>\u6587\u4ef6\u7c7b\u578b\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">.prototxt \/ .pbtxt<\/td>\n<td align=\"left\">\u6a21\u578b\u7684\u914d\u7f6e\u6587\u4ef6&#xff0c;\u63cf\u8ff0\u7f51\u7edc\u7ed3\u6784<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">.caffemodel \/ .pb<\/td>\n<td align=\"left\">\u6a21\u578b\u7684\u6743\u91cd\u6587\u4ef6&#xff0c;\u5b58\u50a8\u8bad\u7ec3\u597d\u7684\u53c2\u6570<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u4e09\u3001DNN \u6a21\u5757\u57fa\u7840<\/h3>\n<h4>3.1 \u4ec0\u4e48\u662f DNN \u6a21\u5757<\/h4>\n<p>OpenCV \u7684 dnn \u6a21\u5757\u652f\u6301\u52a0\u8f7d\u591a\u79cd\u6df1\u5ea6\u5b66\u4e60\u6846\u67b6\u8bad\u7ec3\u597d\u7684\u6a21\u578b&#xff08;Caffe\u3001TensorFlow\u3001ONNX\u3001Darknet \u7b49&#xff09;&#xff0c;\u5e76\u8fdb\u884c\u524d\u5411\u63a8\u7406&#xff0c;\u65e0\u9700\u5b89\u88c5 TensorFlow \u6216 PyTorch\u3002<\/p>\n<h4>3.2 \u6838\u5fc3\u51fd\u6570<\/h4>\n<table>\n<tr>\u51fd\u6570\u7528\u9014<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">cv2.dnn.readNet(model, config)<\/td>\n<td align=\"left\">\u52a0\u8f7d\u6a21\u578b&#xff08;\u6743\u91cd &#043; \u914d\u7f6e&#xff09;<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">cv2.dnn.blobFromImage(image, &#8230;)<\/td>\n<td align=\"left\">\u5c06\u56fe\u50cf\u8f6c\u4e3a\u6a21\u578b\u53ef\u63a5\u53d7\u7684\u8f93\u5165\u683c\u5f0f<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">net.setInput(blob)<\/td>\n<td align=\"left\">\u8bbe\u7f6e\u6a21\u578b\u8f93\u5165<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">net.forward()<\/td>\n<td align=\"left\">\u6267\u884c\u524d\u5411\u63a8\u7406<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>3.3 blobFromImage \u53c2\u6570<\/h4>\n<table>\n<tr>\u53c2\u6570\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">image<\/td>\n<td align=\"left\">\u8f93\u5165\u56fe\u50cf<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">scalefactor<\/td>\n<td align=\"left\">\u7f29\u653e\u56e0\u5b50<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">size<\/td>\n<td align=\"left\">\u6a21\u578b\u8981\u6c42\u7684\u8f93\u5165\u5c3a\u5bf8<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">mean<\/td>\n<td align=\"left\">\u5747\u503c&#xff0c;\u7528\u4e8e\u51cf\u53bb\u56fe\u50cf\u5747\u503c<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">swapRB<\/td>\n<td align=\"left\">\u662f\u5426\u4ea4\u6362 R \u548c B \u901a\u9053<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">crop<\/td>\n<td align=\"left\">\u662f\u5426\u88c1\u526a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u56db\u3001\u5b8c\u6574\u4ee3\u7801<\/h3>\n<p><span class=\"token keyword\">import<\/span> cv2<br \/>\n<span class=\"token keyword\">from<\/span> PIL <span class=\"token keyword\">import<\/span> Image<span class=\"token punctuation\">,<\/span> ImageDraw<span class=\"token punctuation\">,<\/span> ImageFont  <span class=\"token comment\"># pip install pillow<\/span><br \/>\n<span class=\"token keyword\">import<\/span> numpy <span class=\"token keyword\">as<\/span> np<\/p>\n<p><span class=\"token comment\"># &#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061; \u6a21\u578b\u521d\u59cb\u5316 &#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;<\/span><br \/>\n<span class=\"token comment\"># \u6a21\u578b\u8def\u5f84&#xff1a;\u4eba\u8138\u68c0\u6d4b\u3001\u5e74\u9f84\u8bc6\u522b\u3001\u6027\u522b\u8bc6\u522b<\/span><br \/>\n<span class=\"token comment\"># .pbtxt\/.prototxt \u662f\u7f51\u7edc\u7ed3\u6784\u914d\u7f6e\u6587\u4ef6&#xff0c;.pb\/.caffemodel \u662f\u8bad\u7ec3\u597d\u7684\u6743\u91cd\u6587\u4ef6<\/span><br \/>\nfaceProto <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;models\/opencv_face_detector.pbtxt&#034;<\/span><br \/>\nfaceModel <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;models\/opencv_face_detector_uint8.pb&#034;<\/span><br \/>\nageProto <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;models\/deploy_age.prototxt&#034;<\/span><br \/>\nageModel <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;models\/age_net.caffemodel&#034;<\/span><br \/>\ngenderProto <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;models\/deploy_gender.prototxt&#034;<\/span><br \/>\ngenderModel <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;models\/gender_net.caffemodel&#034;<\/span><\/p>\n<p><span class=\"token comment\"># \u52a0\u8f7d\u7f51\u7edc&#xff1a;readNet \u63a5\u6536\u4e24\u4e2a\u53c2\u6570&#xff0c;\u5206\u522b\u662f\u6743\u91cd\u6587\u4ef6\u548c\u914d\u7f6e\u6587\u4ef6<\/span><br \/>\nageNet <span class=\"token operator\">&#061;<\/span> cv2<span class=\"token punctuation\">.<\/span>dnn<span class=\"token punctuation\">.<\/span>readNet<span class=\"token punctuation\">(<\/span>ageModel<span class=\"token punctuation\">,<\/span> ageProto<span class=\"token punctuation\">)<\/span>           <span class=\"token comment\"># \u5e74\u9f84\u6a21\u578b<\/span><br \/>\ngenderNet <span class=\"token operator\">&#061;<\/span> cv2<span class=\"token punctuation\">.<\/span>dnn<span class=\"token punctuation\">.<\/span>readNet<span class=\"token punctuation\">(<\/span>genderModel<span class=\"token punctuation\">,<\/span> genderProto<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u6027\u522b\u6a21\u578b<\/span><br \/>\nfaceNet <span class=\"token operator\">&#061;<\/span> cv2<span class=\"token punctuation\">.<\/span>dnn<span class=\"token punctuation\">.<\/span>readNet<span class=\"token punctuation\">(<\/span>faceModel<span class=\"token punctuation\">,<\/span> faceProto<span class=\"token punctuation\">)<\/span>        <span class=\"token comment\"># \u4eba\u8138\u6a21\u578b<\/span><\/p>\n<p><span class=\"token comment\"># &#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061; \u53d8\u91cf\u521d\u59cb\u5316 &#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;<\/span><br \/>\n<span class=\"token comment\"># \u5e74\u9f84\u6bb5\u6807\u7b7e&#xff1a;\u6a21\u578b\u8f93\u51fa 8 \u4e2a\u6982\u7387\u503c&#xff0c;\u5bf9\u5e94\u4e0b\u9762 8 \u4e2a\u5e74\u9f84\u6bb5&#xff0c;\u6982\u7387\u6700\u5927\u7684\u5373\u4e3a\u9884\u6d4b\u7ed3\u679c<\/span><br \/>\nageList <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;0-2\u5c81&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;4-6\u5c81&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;8-12\u5c81&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;15-20\u5c81&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;25-32\u5c81&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;38-43\u5c81&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;48-53\u5c81&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;60-100\u5c81&#039;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token comment\"># \u6027\u522b\u6807\u7b7e&#xff1a;\u6a21\u578b\u8f93\u51fa 2 \u4e2a\u6982\u7387\u503c&#xff0c;\u5206\u522b\u5bf9\u5e94\u7537\u6027\u3001\u5973\u6027<\/span><br \/>\ngenderList <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;\u7537\u6027&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;\u5973\u6027&#039;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token comment\"># \u6a21\u578b\u5747\u503c&#xff1a;\u8bad\u7ec3\u65f6\u8bbe\u5b9a\u7684\u56fa\u5b9a\u503c&#xff0c;\u63a8\u7406\u65f6\u9700\u8981\u51cf\u53bb\u8fd9\u4e2a\u5747\u503c&#xff08;\u4e0d\u8981\u6539\u52a8&#xff09;<\/span><br \/>\nmean <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">78.4263377603<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">87.7689143744<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">114.895847746<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">def<\/span> <span class=\"token function\">getBoxes<\/span><span class=\"token punctuation\">(<\/span>net<span class=\"token punctuation\">,<\/span> frame<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token triple-quoted-string string\">&#034;&#034;&#034;\u83b7\u53d6\u4eba\u8138\u5305\u56f4\u6846&#xff1a;\u8f93\u5165\u5f85\u68c0\u6d4b\u56fe\u50cf\u5e27&#xff0c;\u8fd4\u56de\u7ed8\u5236\u4e86\u4eba\u8138\u6846\u7684\u56fe\u50cf\u548c\u4eba\u8138\u6846\u5217\u8868&#034;&#034;&#034;<\/span><br \/>\n    frameHeight<span class=\"token punctuation\">,<\/span> frameWidth <span class=\"token operator\">&#061;<\/span> frame<span class=\"token punctuation\">.<\/span>shape<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">:<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span>  <span class=\"token comment\"># \u83b7\u53d6\u56fe\u50cf\u7684\u9ad8\u5ea6\u548c\u5bbd\u5ea6<\/span><\/p>\n<p>    <span class=\"token comment\"># \u56fe\u50cf\u9884\u5904\u7406&#xff1a;\u5c06\u56fe\u50cf\u8f6c\u4e3a DNN \u6a21\u578b\u8981\u6c42\u7684 blob \u683c\u5f0f<\/span><br \/>\n    <span class=\"token comment\"># scalefactor&#061;1.0&#xff1a;\u4e0d\u7f29\u653e\u50cf\u7d20\u503c<\/span><br \/>\n    <span class=\"token comment\"># size&#061;(300, 300)&#xff1a;\u4eba\u8138\u68c0\u6d4b\u6a21\u578b\u8981\u6c42\u8f93\u5165 300\u00d7300<\/span><br \/>\n    <span class=\"token comment\"># mean&#061;[104, 117, 123]&#xff1a;\u51cf\u53bb\u5747\u503c&#xff0c;\u8fd9\u662f\u4eba\u8138\u68c0\u6d4b\u6a21\u578b\u8bad\u7ec3\u65f6\u8bbe\u5b9a\u7684<\/span><br \/>\n    <span class=\"token comment\"># swapRB&#061;True&#xff1a;\u4ea4\u6362 R \u548c B \u901a\u9053&#xff08;OpenCV \u9ed8\u8ba4 BGR&#xff0c;\u6a21\u578b\u8981\u6c42 RGB&#xff09;<\/span><br \/>\n    <span class=\"token comment\"># crop&#061;False&#xff1a;\u4e0d\u88c1\u526a<\/span><br \/>\n    blob <span class=\"token operator\">&#061;<\/span> cv2<span class=\"token punctuation\">.<\/span>dnn<span class=\"token punctuation\">.<\/span>blobFromImage<span class=\"token punctuation\">(<\/span>frame<span class=\"token punctuation\">,<\/span> scalefactor<span class=\"token operator\">&#061;<\/span><span class=\"token number\">1.0<\/span><span class=\"token punctuation\">,<\/span> size<span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">300<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">300<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                                 mean<span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">[<\/span><span class=\"token number\">104<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">117<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">123<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> swapRB<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">,<\/span> crop<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">False<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    net<span class=\"token punctuation\">.<\/span>setInput<span class=\"token punctuation\">(<\/span>blob<span class=\"token punctuation\">)<\/span>          <span class=\"token comment\"># \u5c06 blob \u8bbe\u7f6e\u4e3a\u7f51\u7edc\u7684\u8f93\u5165<\/span><br \/>\n    detections <span class=\"token operator\">&#061;<\/span> net<span class=\"token punctuation\">.<\/span>forward<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u524d\u5411\u4f20\u64ad&#xff0c;\u5f97\u5230\u68c0\u6d4b\u7ed3\u679c&#xff08;\u56db\u7ef4\u6570\u7ec4&#xff09;<\/span><\/p>\n<p>    faceBoxes <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>  <span class=\"token comment\"># \u5b58\u50a8\u68c0\u6d4b\u5230\u7684\u4eba\u8138\u6846\u5750\u6807<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span>detections<span class=\"token punctuation\">.<\/span>shape<span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># detections \u5f62\u72b6\u4e3a [1, 1, N, 7]&#xff0c;\u6bcf\u4e00\u884c 7 \u4e2a\u6570\u636e<\/span><br \/>\n        <span class=\"token comment\"># \u7b2c 3 \u4e2a\u6570\u636e&#xff08;\u7d22\u5f15 2&#xff09;\u662f\u7f6e\u4fe1\u5ea6&#xff0c;\u8868\u793a\u8fd9\u91cc\u662f\u8138\u7684\u6982\u7387<\/span><br \/>\n        <span class=\"token comment\"># \u7b2c 4~7 \u4e2a\u6570\u636e&#xff08;\u7d22\u5f15 3~6&#xff09;\u662f\u4eba\u8138\u6846\u7684\u5f52\u4e00\u5316\u5750\u6807&#xff08;0~1 \u4e4b\u95f4&#xff09;<\/span><br \/>\n        confidence <span class=\"token operator\">&#061;<\/span> detections<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> i<span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> confidence <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0.7<\/span><span class=\"token punctuation\">:<\/span>  <span class=\"token comment\"># \u7f6e\u4fe1\u5ea6\u5927\u4e8e 0.7 \u624d\u8ba4\u4e3a\u662f\u4eba\u8138&#xff08;\u8fc7\u6ee4\u6389\u8bef\u68c0&#xff09;<\/span><br \/>\n            <span class=\"token comment\"># \u5f52\u4e00\u5316\u5750\u6807 \u00d7 \u56fe\u50cf\u5c3a\u5bf8 &#061; \u5b9e\u9645\u50cf\u7d20\u5750\u6807<\/span><br \/>\n            x1 <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">(<\/span>detections<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> i<span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">*<\/span> frameWidth<span class=\"token punctuation\">)<\/span>   <span class=\"token comment\"># \u5de6\u4e0a\u89d2 x<\/span><br \/>\n            y1 <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">(<\/span>detections<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> i<span class=\"token punctuation\">,<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">*<\/span> frameHeight<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u5de6\u4e0a\u89d2 y<\/span><br \/>\n            x2 <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">(<\/span>detections<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> i<span class=\"token punctuation\">,<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">*<\/span> frameWidth<span class=\"token punctuation\">)<\/span>   <span class=\"token comment\"># \u53f3\u4e0b\u89d2 x<\/span><br \/>\n            y2 <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">(<\/span>detections<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> i<span class=\"token punctuation\">,<\/span> <span class=\"token number\">6<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">*<\/span> frameHeight<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u53f3\u4e0b\u89d2 y<\/span><br \/>\n            faceBoxes<span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span>x1<span class=\"token punctuation\">,<\/span> y1<span class=\"token punctuation\">,<\/span> x2<span class=\"token punctuation\">,<\/span> y2<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u4fdd\u5b58\u4eba\u8138\u6846<\/span><\/p>\n<p>            <span class=\"token comment\"># \u7ed8\u5236\u4eba\u8138\u6846&#xff08;\u7eff\u8272\u77e9\u5f62&#xff09;<\/span><br \/>\n            <span class=\"token comment\"># thickness \u6839\u636e\u56fe\u50cf\u9ad8\u5ea6\u52a8\u6001\u8ba1\u7b97&#xff0c;\u4fdd\u8bc1\u4e0d\u540c\u5206\u8fa8\u7387\u4e0b\u7ebf\u5bbd\u5408\u9002<\/span><br \/>\n            cv2<span class=\"token punctuation\">.<\/span>rectangle<span class=\"token punctuation\">(<\/span>frame<span class=\"token punctuation\">,<\/span> pt1<span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">(<\/span>x1<span class=\"token punctuation\">,<\/span> y1<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> pt2<span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">(<\/span>x2<span class=\"token punctuation\">,<\/span> y2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                          color<span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">255<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                          thickness<span class=\"token operator\">&#061;<\/span><span class=\"token builtin\">int<\/span><span class=\"token punctuation\">(<\/span><span class=\"token builtin\">round<\/span><span class=\"token punctuation\">(<\/span>frameHeight <span class=\"token operator\">\/<\/span> <span class=\"token number\">150<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                          lineType<span class=\"token operator\">&#061;<\/span><span class=\"token number\">6<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> frame<span class=\"token punctuation\">,<\/span> faceBoxes  <span class=\"token comment\"># \u8fd4\u56de\u7ed8\u5236\u4e86\u4eba\u8138\u6846\u7684\u56fe\u50cf\u548c\u4eba\u8138\u6846\u5217\u8868<\/span><\/p>\n<p><span class=\"token keyword\">def<\/span> <span class=\"token function\">cv2AddChineseText<\/span><span class=\"token punctuation\">(<\/span>img<span class=\"token punctuation\">,<\/span> text<span class=\"token punctuation\">,<\/span> position<span class=\"token punctuation\">,<\/span> textColor<span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">255<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> textSize<span class=\"token operator\">&#061;<\/span><span class=\"token number\">30<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token triple-quoted-string string\">&#034;&#034;&#034;\u5728\u56fe\u50cf\u4e0a\u7ed8\u5236\u4e2d\u6587&#xff08;OpenCV \u7684 putText \u4e0d\u652f\u6301\u4e2d\u6587&#xff0c;\u9700\u501f\u52a9 PIL&#xff09;&#034;&#034;&#034;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token builtin\">isinstance<\/span><span class=\"token punctuation\">(<\/span>img<span class=\"token punctuation\">,<\/span> np<span class=\"token punctuation\">.<\/span>ndarray<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># OpenCV \u662f BGR&#xff0c;PIL \u662f RGB&#xff0c;\u5148\u8f6c\u6362<\/span><br \/>\n        img <span class=\"token operator\">&#061;<\/span> Image<span class=\"token punctuation\">.<\/span>fromarray<span class=\"token punctuation\">(<\/span>cv2<span class=\"token punctuation\">.<\/span>cvtColor<span class=\"token punctuation\">(<\/span>img<span class=\"token punctuation\">,<\/span> cv2<span class=\"token punctuation\">.<\/span>COLOR_BGR2RGB<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    draw <span class=\"token operator\">&#061;<\/span> ImageDraw<span class=\"token punctuation\">.<\/span>Draw<span class=\"token punctuation\">(<\/span>img<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token comment\"># \u52a0\u8f7d\u4e2d\u6587\u5b57\u4f53&#xff1a;simsun.ttc \u662f\u5b8b\u4f53&#xff0c;Windows \u7cfb\u7edf\u81ea\u5e26<\/span><br \/>\n    fontStyle <span class=\"token operator\">&#061;<\/span> ImageFont<span class=\"token punctuation\">.<\/span>truetype<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;simsun.ttc&#034;<\/span><span class=\"token punctuation\">,<\/span> textSize<span class=\"token punctuation\">,<\/span> encoding<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;utf-8&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token comment\"># \u5728\u6307\u5b9a\u4f4d\u7f6e\u7ed8\u5236\u6587\u672c<\/span><br \/>\n    draw<span class=\"token punctuation\">.<\/span>text<span class=\"token punctuation\">(<\/span>position<span class=\"token punctuation\">,<\/span> text<span class=\"token punctuation\">,<\/span> textColor<span class=\"token punctuation\">,<\/span> font<span class=\"token operator\">&#061;<\/span>fontStyle<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token comment\"># \u8f6c\u56de OpenCV \u7684 BGR \u683c\u5f0f<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> cv2<span class=\"token punctuation\">.<\/span>cvtColor<span class=\"token punctuation\">(<\/span>np<span class=\"token punctuation\">.<\/span>asarray<span class=\"token punctuation\">(<\/span>img<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> cv2<span class=\"token punctuation\">.<\/span>COLOR_RGB2BGR<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># &#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061; \u6253\u5f00\u6444\u50cf\u5934 &#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;&#061;<\/span><br \/>\n<span class=\"token comment\"># CAP_DSHOW \u662f Windows \u4e0b\u7684\u6444\u50cf\u5934\u9a71\u52a8&#xff0c;\u52a0\u4e0a\u53ef\u4ee5\u52a0\u5feb\u6444\u50cf\u5934\u6253\u5f00\u901f\u5ea6<\/span><br \/>\ncap <span class=\"token operator\">&#061;<\/span> cv2<span class=\"token punctuation\">.<\/span>VideoCapture<span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> cv2<span class=\"token punctuation\">.<\/span>CAP_DSHOW<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">while<\/span> <span class=\"token boolean\">True<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    _<span class=\"token punctuation\">,<\/span> frame <span class=\"token operator\">&#061;<\/span> cap<span class=\"token punctuation\">.<\/span>read<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>                <span class=\"token comment\"># \u8bfb\u53d6\u4e00\u5e27<\/span><br \/>\n    frame <span class=\"token operator\">&#061;<\/span> cv2<span class=\"token punctuation\">.<\/span>flip<span class=\"token punctuation\">(<\/span>frame<span class=\"token punctuation\">,<\/span> flipCode<span class=\"token operator\">&#061;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u955c\u50cf\u5904\u7406&#xff0c;\u65b9\u4fbf\u81ea\u62cd<\/span><\/p>\n<p>    <span class=\"token comment\"># \u68c0\u6d4b\u4eba\u8138&#xff0c;\u5e76\u5728\u5e27\u4e0a\u7ed8\u5236\u4eba\u8138\u6846<\/span><br \/>\n    frame<span class=\"token punctuation\">,<\/span> faceBoxes <span class=\"token operator\">&#061;<\/span> getBoxes<span class=\"token punctuation\">(<\/span>faceNet<span class=\"token punctuation\">,<\/span> frame<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token keyword\">not<\/span> faceBoxes<span class=\"token punctuation\">:<\/span>            <span class=\"token comment\"># \u6ca1\u6709\u4eba\u8138\u65f6\u8df3\u8fc7\u540e\u7eed\u5904\u7406<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5f53\u524d\u955c\u5934\u4e2d\u6ca1\u6709\u4eba&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">continue<\/span><\/p>\n<p>    <span class=\"token comment\"># \u904d\u5386\u6bcf\u4e00\u5f20\u4eba\u8138&#xff08;\u53ef\u80fd\u6709\u591a\u4e2a\u4eba&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> faceBox <span class=\"token keyword\">in<\/span> faceBoxes<span class=\"token punctuation\">:<\/span><br \/>\n        x1<span class=\"token punctuation\">,<\/span> y1<span class=\"token punctuation\">,<\/span> x2<span class=\"token punctuation\">,<\/span> y2 <span class=\"token operator\">&#061;<\/span> faceBox<br \/>\n        face <span class=\"token operator\">&#061;<\/span> frame<span class=\"token punctuation\">[<\/span>y1<span class=\"token punctuation\">:<\/span>y2<span class=\"token punctuation\">,<\/span> x1<span class=\"token punctuation\">:<\/span>x2<span class=\"token punctuation\">]<\/span>  <span class=\"token comment\"># \u6839\u636e\u4eba\u8138\u6846\u4ece\u539f\u56fe\u4e2d\u88c1\u526a\u51fa\u4eba\u8138\u533a\u57df<\/span><\/p>\n<p>        <span class=\"token comment\"># \u5c06\u4eba\u8138\u533a\u57df\u8f6c\u4e3a\u6a21\u578b\u8f93\u5165\u683c\u5f0f&#xff08;\u6027\u522b\u5e74\u9f84\u6a21\u578b\u8f93\u5165 227\u00d7227&#xff09;<\/span><br \/>\n        <span class=\"token comment\"># \u6ce8\u610f&#xff1a;\u8fd9\u91cc\u7528\u7684\u662f\u6027\u522b\u5e74\u9f84\u6a21\u578b\u81ea\u5df1\u7684\u5747\u503c mean&#xff0c;\u4e0e\u4eba\u8138\u68c0\u6d4b\u7684\u5747\u503c\u4e0d\u540c<\/span><br \/>\n        blob <span class=\"token operator\">&#061;<\/span> cv2<span class=\"token punctuation\">.<\/span>dnn<span class=\"token punctuation\">.<\/span>blobFromImage<span class=\"token punctuation\">(<\/span>face<span class=\"token punctuation\">,<\/span> scalefactor<span class=\"token operator\">&#061;<\/span><span class=\"token number\">1.0<\/span><span class=\"token punctuation\">,<\/span> size<span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">227<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">227<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> mean<span class=\"token operator\">&#061;<\/span>mean<span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\"># &#8212;&#8212;&#8212;- \u9884\u6d4b\u6027\u522b &#8212;&#8212;&#8212;-<\/span><br \/>\n        genderNet<span class=\"token punctuation\">.<\/span>setInput<span class=\"token punctuation\">(<\/span>blob<span class=\"token punctuation\">)<\/span>                    <span class=\"token comment\"># \u8bbe\u7f6e\u8f93\u5165<\/span><br \/>\n        genderOuts <span class=\"token operator\">&#061;<\/span> genderNet<span class=\"token punctuation\">.<\/span>forward<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>            <span class=\"token comment\"># \u524d\u5411\u63a8\u7406&#xff0c;\u8f93\u51fa 2 \u4e2a\u6982\u7387\u503c<\/span><br \/>\n        gender <span class=\"token operator\">&#061;<\/span> genderList<span class=\"token punctuation\">[<\/span>genderOuts<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>argmax<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span>  <span class=\"token comment\"># argmax \u53d6\u6982\u7387\u5927\u7684\u7d22\u5f15&#xff0c;\u518d\u67e5\u6807\u7b7e<\/span><\/p>\n<p>        <span class=\"token comment\"># &#8212;&#8212;&#8212;- \u9884\u6d4b\u5e74\u9f84 &#8212;&#8212;&#8212;-<\/span><br \/>\n        ageNet<span class=\"token punctuation\">.<\/span>setInput<span class=\"token punctuation\">(<\/span>blob<span class=\"token punctuation\">)<\/span>                       <span class=\"token comment\"># \u8bbe\u7f6e\u8f93\u5165<\/span><br \/>\n        ageOuts <span class=\"token operator\">&#061;<\/span> ageNet<span class=\"token punctuation\">.<\/span>forward<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>                  <span class=\"token comment\"># \u524d\u5411\u63a8\u7406&#xff0c;\u8f93\u51fa 8 \u4e2a\u6982\u7387\u503c<\/span><br \/>\n        age <span class=\"token operator\">&#061;<\/span> ageList<span class=\"token punctuation\">[<\/span>ageOuts<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>argmax<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span>          <span class=\"token comment\"># \u53d6\u6982\u7387\u6700\u5927\u7684\u5e74\u9f84\u6bb5<\/span><\/p>\n<p>        <span class=\"token comment\"># \u683c\u5f0f\u5316\u8f93\u51fa\u7ed3\u679c&#xff1a;\u6027\u522b &#043; \u5e74\u9f84\u6bb5<\/span><br \/>\n        result <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;{},{}&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token builtin\">format<\/span><span class=\"token punctuation\">(<\/span>gender<span class=\"token punctuation\">,<\/span> age<span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token comment\"># \u5728\u56fe\u50cf\u4e0a\u7ed8\u5236\u4e2d\u6587\u7ed3\u679c&#xff08;\u663e\u793a\u5728\u4eba\u8138\u6846\u4e0a\u65b9&#xff09;<\/span><br \/>\n        frame <span class=\"token operator\">&#061;<\/span> cv2AddChineseText<span class=\"token punctuation\">(<\/span>frame<span class=\"token punctuation\">,<\/span> result<span class=\"token punctuation\">,<\/span> position<span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">(<\/span>x1<span class=\"token punctuation\">,<\/span> y1 <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">30<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>        cv2<span class=\"token punctuation\">.<\/span>imshow<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;result&#034;<\/span><span class=\"token punctuation\">,<\/span> frame<span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> cv2<span class=\"token punctuation\">.<\/span>waitKey<span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">27<\/span><span class=\"token punctuation\">:<\/span>  <span class=\"token comment\"># \u6309 ESC \u952e\u9000\u51fa<\/span><br \/>\n        <span class=\"token keyword\">break<\/span><\/p>\n<p>cv2<span class=\"token punctuation\">.<\/span>destroyAllWindows<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\ncap<span class=\"token punctuation\">.<\/span>release<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h3>\u4e94\u3001\u7ed3\u679c\u8bf4\u660e<\/h3>\n<h4>5.1 \u5173\u952e\u6b65\u9aa4<\/h4>\n<table>\n<tr>\u6b65\u9aa4\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">1. \u52a0\u8f7d\u6a21\u578b<\/td>\n<td align=\"left\">\u52a0\u8f7d\u4eba\u8138\u68c0\u6d4b\u3001\u5e74\u9f84\u3001\u6027\u522b\u4e09\u4e2a\u7f51\u7edc<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">2. \u68c0\u6d4b\u4eba\u8138<\/td>\n<td align=\"left\">\u7528 DNN \u4eba\u8138\u68c0\u6d4b\u5668\u83b7\u53d6\u4eba\u8138\u6846<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">3. \u88c1\u526a\u4eba\u8138<\/td>\n<td align=\"left\">\u6839\u636e\u4eba\u8138\u6846\u4ece\u539f\u56fe\u4e2d\u622a\u53d6\u4eba\u8138\u533a\u57df<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">4. \u9884\u6d4b\u6027\u522b<\/td>\n<td align=\"left\">\u5c06\u4eba\u8138\u9001\u5165\u6027\u522b\u7f51\u7edc&#xff0c;\u8f93\u51fa\u7537\/\u5973<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">5. \u9884\u6d4b\u5e74\u9f84<\/td>\n<td align=\"left\">\u5c06\u4eba\u8138\u9001\u5165\u5e74\u9f84\u7f51\u7edc&#xff0c;\u8f93\u51fa\u5e74\u9f84\u6bb5<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">6. \u7ed8\u5236\u7ed3\u679c<\/td>\n<td align=\"left\">\u7528 PIL \u7ed8\u5236\u4e2d\u6587\u6807\u7b7e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>5.2 \u4e09\u4e2a\u6a21\u578b\u7684\u4f5c\u7528<\/h4>\n<table>\n<tr>\u6a21\u578b\u8f93\u5165\u5c3a\u5bf8\u8f93\u51fa<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">\u4eba\u8138\u68c0\u6d4b<\/td>\n<td align=\"left\">300\u00d7300<\/td>\n<td align=\"left\">\u4eba\u8138\u6846\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u6027\u522b\u8bc6\u522b<\/td>\n<td align=\"left\">227\u00d7227<\/td>\n<td align=\"left\">2 \u4e2a\u6982\u7387\u503c&#xff08;\u7537\u3001\u5973&#xff09;<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u5e74\u9f84\u8bc6\u522b<\/td>\n<td align=\"left\">227\u00d7227<\/td>\n<td align=\"left\">8 \u4e2a\u6982\u7387\u503c&#xff08;8 \u4e2a\u5e74\u9f84\u6bb5&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>5.3 \u5e94\u7528\u573a\u666f<\/h4>\n<table>\n<tr>\u573a\u666f\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">\u667a\u80fd\u5e7f\u544a\u63a8\u9001<\/td>\n<td align=\"left\">\u6839\u636e\u6027\u522b\u5e74\u9f84\u63a8\u8350\u5546\u54c1<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u5ba2\u6d41\u5206\u6790<\/td>\n<td align=\"left\">\u5546\u573a\u7edf\u8ba1\u4e0d\u540c\u4eba\u7fa4\u6bd4\u4f8b<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u667a\u80fd\u95e8\u7981<\/td>\n<td align=\"left\">\u8f85\u52a9\u8eab\u4efd\u9a8c\u8bc1<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u4e92\u52a8\u5a31\u4e50<\/td>\n<td align=\"left\">\u62cd\u7167\u6d4b\u5e74\u9f84\u3001\u6027\u522b\u6e38\u620f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u516d\u3001\u603b\u7ed3<\/h3>\n<h4>\u6838\u5fc3\u51fd\u6570\u901f\u67e5<\/h4>\n<table>\n<tr>\u51fd\u6570\u7528\u9014<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">cv2.dnn.readNet(model, config)<\/td>\n<td align=\"left\">\u52a0\u8f7d DNN \u6a21\u578b<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">cv2.dnn.blobFromImage(image, &#8230;)<\/td>\n<td align=\"left\">\u56fe\u50cf\u9884\u5904\u7406\u4e3a blob \u683c\u5f0f<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">net.setInput(blob)<\/td>\n<td align=\"left\">\u8bbe\u7f6e\u7f51\u7edc\u8f93\u5165<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">net.forward()<\/td>\n<td align=\"left\">\u524d\u5411\u63a8\u7406&#xff0c;\u83b7\u53d6\u8f93\u51fa<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">argmax()<\/td>\n<td align=\"left\">\u53d6\u6982\u7387\u6700\u5927\u7684\u7c7b\u522b\u7d22\u5f15<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">cv2AddChineseText()<\/td>\n<td align=\"left\">\u7528 PIL \u7ed8\u5236\u4e2d\u6587\u6587\u5b57<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>\u6a21\u578b\u8f93\u51fa\u901f\u67e5<\/h4>\n<table>\n<tr>\u6a21\u578b\u8f93\u51fa\u7d22\u5f15\u5bf9\u5e94<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">\u6027\u522b\u6a21\u578b<\/td>\n<td align=\"left\">2 \u4e2a\u6982\u7387<\/td>\n<td align=\"left\">0\u2192\u7537\u6027, 1\u2192\u5973\u6027<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u5e74\u9f84\u6a21\u578b<\/td>\n<td align=\"left\">8 \u4e2a\u6982\u7387<\/td>\n<td align=\"left\">0~7 \u5bf9\u5e94 8 \u4e2a\u5e74\u9f84\u6bb5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>\u6ce8\u610f\u4e8b\u9879<\/h4>\n<table>\n<tr>\u8981\u70b9\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td align=\"left\">\u4e2d\u6587\u663e\u793a<\/td>\n<td align=\"left\">cv2.putText() \u4e0d\u652f\u6301\u4e2d\u6587&#xff0c;\u9700\u501f\u52a9 PIL<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u7f6e\u4fe1\u5ea6\u9608\u503c<\/td>\n<td align=\"left\">0.7 \u662f\u7ecf\u9a8c\u503c&#xff0c;\u503c\u8d8a\u9ad8\u68c0\u6d4b\u8d8a\u4e25\u683c<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u6a21\u578b\u8f93\u5165\u5c3a\u5bf8<\/td>\n<td align=\"left\">\u4eba\u8138\u68c0\u6d4b 300\u00d7300&#xff0c;\u6027\u522b\u5e74\u9f84 227\u00d7227<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u56fe\u50cf\u901a\u9053\u987a\u5e8f<\/td>\n<td align=\"left\">OpenCV \u8bfb\u5165\u662f BGR&#xff0c;\u9700\u7528 swapRB&#061;True \u8f6c\u4e3a RGB<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u4e24\u7ec4\u5747\u503c<\/td>\n<td align=\"left\">\u4eba\u8138\u68c0\u6d4b\u7528 [104, 117, 123]&#xff0c;\u6027\u522b\u5e74\u9f84\u7528 mean \u53d8\u91cf<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u5e74\u9f84\u662f\u533a\u95f4<\/td>\n<td align=\"left\">\u6a21\u578b\u8f93\u51fa\u7684\u662f\u5e74\u9f84\u6bb5&#xff0c;\u4e0d\u662f\u7cbe\u786e\u5e74\u9f84<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">\u6444\u50cf\u5934\u53c2\u6570<\/td>\n<td align=\"left\">\u4f7f\u7528 cv2.CAP_DSHOW \u52a0\u5feb Windows \u4e0b\u6444\u50cf\u5934\u6253\u5f00\u901f\u5ea6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u7cfb\u5217\u76f4\u8fbe<\/h3>\n<ul>\n<li>\u4e0a\u7bc7&#xff1a;OpenCV\u5b66\u4e60&#xff1a;\u75b2\u52b3\u68c0\u6d4b<\/li>\n<li>\u672c\u7bc7&#xff1a;OpenCV\u5b66\u4e60&#xff1a;\u6027\u522b\u4e0e\u5e74\u9f84\u8bc6\u522b&#xff08;\u672c\u6587&#xff09;<\/li>\n<li>\u4e0b\u7bc7&#xff1a;<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>OpenCV\u5b66\u4e60&#xff1a;\u6027\u522b\u4e0e\u5e74\u9f84\u8bc6\u522b<br \/>\n\u524d\u8a00&#xff1a;\u524d\u9762\u51e0\u7bc7\u6211\u4eec\u5b66\u4e60\u4e86\u4eba\u8138\u68c0\u6d4b\u3001\u5173\u952e\u70b9\u68c0\u6d4b\u3001\u8f6e\u5ed3\u7ed8\u5236\u3001\u8868\u60c5\u8bc6\u522b\u548c\u75b2\u52b3\u68c0\u6d4b\u3002\u8fd9\u4e9b\u6280\u672f\u90fd\u662f\u57fa\u4e8e\u4eba\u8138\u5173\u952e\u70b9\u6216\u51e0\u4f55\u6bd4\u4f8b\u5b9e\u73b0\u7684\u3002\u672c\u7bc7\u6211\u4eec\u5c06\u5f15\u5165\u4e00\u4e2a\u66f4\u5f3a\u5927\u7684\u5de5\u5177\u2014\u2014OpenCV \u7684 DNN \u6a21\u5757&#xff0c;\u901a\u8fc7\u52a0\u8f7d\u9884\u8bad\u7ec3\u7684\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b&#xff0c;\u5b9e\u73b0\u6027\u522b\u548c\u5e74\u9f84\u8bc6\u522b\u3002\u53ea\u9700\u8981\u4e00\u5f20\u4eba\u8138\u56fe\u7247&#xff0c;\u6a21\u578b\u5c31\u80fd\u8f93\u51fa\u6027\u522b&#xff08;\u7537\/\u5973&#xff09;\u548c\u5e74\u9f84\u6bb5\u3002<br \/>\n\u76ee\u5f55<br \/>\n\u4e00\u3001\u9879\u76ee\u6982\u8ff0\u4e8c\u3001\u6a21\u578b\u51c6\u5907\u4e09\u3001DNN \u6a21\u5757\u57fa<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1460],"topic":[],"class_list":["post-108437","post","type-post","status-publish","format-standard","hentry","category-server","tag-opencv"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OpenCV\u5b66\u4e60\uff1a\u6027\u522b\u4e0e\u5e74\u9f84\u8bc6\u522b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/108437.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"OpenCV\u5b66\u4e60\uff1a\u6027\u522b\u4e0e\u5e74\u9f84\u8bc6\u522b - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"OpenCV\u5b66\u4e60&#xff1a;\u6027\u522b\u4e0e\u5e74\u9f84\u8bc6\u522b 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