{"id":204115,"date":"2025-05-29T09:32:17","date_gmt":"2025-05-29T01:32:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204115\/"},"modified":"2025-05-29T09:32:17","modified_gmt":"2025-05-29T01:32:17","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-opencv-%e5%9c%a8%e7%9f%a9%e5%bd%a2%e5%8c%ba%e5%9f%9f%e5%86%85%e7%bb%98%e5%88%b6%e4%b9%9d%e4%b8%aa%e7%89%b9%e5%ae%9a%e7%82%b9%e7%9a%84%e5%9c%86%e5%bd%a2%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204115\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 OpenCV \u5728\u77e9\u5f62\u533a\u57df\u5185\u7ed8\u5236\u4e5d\u4e2a\u7279\u5b9a\u70b9\u7684\u5706\u5f62\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u5982\u4f55\u4f7f\u7528 OpenCV \u5728\u77e9\u5f62\u533a\u57df\u5185\u7ed8\u5236\u4e5d\u4e2a\u7279\u5b9a\u70b9\u7684\u5706\u5f62\uff1f<\/h1>\n<p>\u54c8\u55bd\uff01\u5927\u5bb6\u597d\uff0c\u5f88\u9ad8\u5174\u53c8\u89c1\u9762\u4e86\uff0c\u6211\u662f\u7684\u4e00\u540d\u4f5c\u8005\uff0c\u4eca\u5929\u7531\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7\uff0c\u672c\u6587\u4e3b\u8981\u4f1a\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5927\u5bb6\u4e00\u8d77\u5b66\u4e60\u8fdb\u6b65\uff0c\u4e5f\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u3001\u70b9\u8d5e\u3001\u6536\u85cf\u3001\u8f6c\u53d1! \u4e0b\u9762\u5c31\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241028\/1730108923671f5dfb4af48.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u5982\u4f55\u5728\u77e9\u5f62\u5185\u7528 opencv \u753b\u51fa\u7279\u5b9a\u70b9\u5750\u6807\u5706\u5f62\uff1f<\/strong><\/p>\n<p>\u7ed9\u5b9a\u77e9\u5f62\u7684 left\uff0ctop\uff0cright\uff0cbottom \u5750\u6807\uff0c\u4ee5\u53ca\u4e00\u4e2a\u77e9\u5f62\uff0c\u8981\u6c42\u5728\u77e9\u5f62\u8303\u56f4\u5185\u7ed8\u5236\u4ee5\u4e0b\u4e5d\u4e2a\u70b9\u7684\u5706\u5f62\uff1a<\/p>\n<ul>\n<li>\u5de6\u4e0a\u3001\u4e0a\u4e2d\u3001\u53f3\u4e0a<\/li>\n<li>\u5de6\u4e2d\u3001\u4e2d\u5fc3\u3001\u53f3\u4e2d<\/li>\n<li>\u5de6\u4e0b\u3001\u4e0b\u4e2d\u3001\u53f3\u4e0b<\/li>\n<\/ul>\n<p><strong>\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a<\/strong><\/p>\n<ol>\n<li>\u521b\u5efa\u4e00\u4e2a\u7a7a\u767d\u7684\u753b\u5e03\uff08\u56fe\u50cf\uff09\u3002<\/li>\n<li>\u7ed8\u5236\u77e9\u5f62\u3002<\/li>\n<li>\u8ba1\u7b97\u4e5d\u4e2a\u70b9\u7684\u5750\u6807\u3002<\/li>\n<li>\u4f7f\u7528 cv2.circle \u51fd\u6570\u5728\u56fe\u50cf\u4e0a\u7ed8\u5236\u5706\u5f62\u3002<\/li>\n<\/ol>\n<p><strong>\u4ee3\u7801\u5982\u4e0b\uff1a<\/strong><\/p>\n<pre>import cv2\nimport numpy as np\n\nimg = np.ones((1000, 1000), np.uint8) * 255\n\nleft, top, right, bottom = 530, 836, 685, 885\n\ncv2.rectangle(img, (left, top), (right, bottom), 0)\n\nfor y in range(top * 2, bottom * 2 + 1, bottom - top):\n    for x in range(left * 2, right * 2 + 1, right - left):\n        cv2.circle(img, (x, y), 8, 0, cv2.FILLED, cv2.LINE_AA, 1)\n\ncv2.imshow('img', img)\ncv2.waitKey()<\/pre>\n<p>\u6267\u884c\u8fd9\u6bb5\u4ee3\u7801\u540e\uff0c\u5c06\u4f1a\u751f\u6210\u4e00\u4e2a\u5305\u542b\u4e5d\u4e2a\u5706\u5f62\u7684\u77e9\u5f62\u56fe\u50cf\u3002<\/p>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300a\u5982\u4f55\u4f7f\u7528 OpenCV \u5728\u77e9\u5f62\u533a\u57df\u5185\u7ed8\u5236\u4e5d\u4e2a\u7279\u5b9a\u70b9\u7684\u5706\u5f62\uff1f\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6587\u7ae0\u77e5\u8bc6\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528 OpenCV \u5728\u77e9\u5f62\u533a&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-204115","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204115","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=204115"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204115\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204115"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}