{"id":13,"date":"2023-07-27T21:16:40","date_gmt":"2023-07-27T13:16:40","guid":{"rendered":"https:\/\/b.dyhao.cn\/?p=13"},"modified":"2023-07-27T21:17:05","modified_gmt":"2023-07-27T13:17:05","slug":"%e4%bd%bf%e7%94%a8python%e5%86%99%e4%b8%8bopencv%e7%9a%84%e9%bb%91%e7%99%bd%e6%bb%a4%e9%95%9c","status":"publish","type":"post","link":"https:\/\/b.dyhao.cn\/index.php\/2023\/07\/27\/%e4%bd%bf%e7%94%a8python%e5%86%99%e4%b8%8bopencv%e7%9a%84%e9%bb%91%e7%99%bd%e6%bb%a4%e9%95%9c\/","title":{"rendered":"\u4f7f\u7528python\u5199\u4e0bopencv\u7684\u9ed1\u767d\u6ee4\u955c"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>import cv2\r\n\r\ndef find_optimal_threshold(image):\r\n    # \u5c06\u56fe\u50cf\u8f6c\u4e3a\u7070\u5ea6\u56fe\r\n    gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)\r\n    \r\n    # \u4f7f\u7528Otsu\u9608\u503c\u6cd5\u8ba1\u7b97\u6700\u4f73\u9608\u503c\r\n    _, threshold = cv2.threshold(gray, 0, 255, cv2.THRESH_BINARY+cv2.THRESH_OTSU)\r\n    \r\n    return threshold\r\n\r\n# \u66ff\u6362\u4e3a\u4f60\u7684\u56fe\u50cf\u8def\u5f84\r\nimage_path = 'path\/to\/your\/image.jpg'\r\n\r\n# \u8bfb\u53d6\u56fe\u50cf\r\nimage = cv2.imread(image_path)\r\n\r\n# \u5bfb\u627e\u6700\u4f73\u9608\u503c\r\noptimal_threshold = find_optimal_threshold(image)\r\n\r\n# \u663e\u793a\u56fe\u50cf\u548c\u6700\u4f73\u9608\u503c\u7ed3\u679c\r\ncv2.imshow(\"Original\", image)\r\ncv2.imshow(\"Optimal Threshold\", optimal_threshold)\r\ncv2.waitKey(0)\r\ncv2.destroyAllWindows()<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-13","post","type-post","status-publish","format-standard","hentry","category-program"],"_links":{"self":[{"href":"https:\/\/b.dyhao.cn\/index.php\/wp-json\/wp\/v2\/posts\/13","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/b.dyhao.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/b.dyhao.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/b.dyhao.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/b.dyhao.cn\/index.php\/wp-json\/wp\/v2\/comments?post=13"}],"version-history":[{"count":1,"href":"https:\/\/b.dyhao.cn\/index.php\/wp-json\/wp\/v2\/posts\/13\/revisions"}],"predecessor-version":[{"id":14,"href":"https:\/\/b.dyhao.cn\/index.php\/wp-json\/wp\/v2\/posts\/13\/revisions\/14"}],"wp:attachment":[{"href":"https:\/\/b.dyhao.cn\/index.php\/wp-json\/wp\/v2\/media?parent=13"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/b.dyhao.cn\/index.php\/wp-json\/wp\/v2\/categories?post=13"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/b.dyhao.cn\/index.php\/wp-json\/wp\/v2\/tags?post=13"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}