{"id":1097412,"date":"2025-01-08T15:11:34","date_gmt":"2025-01-08T07:11:34","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1097412.html"},"modified":"2025-01-08T15:11:36","modified_gmt":"2025-01-08T07:11:36","slug":"%e9%aa%8c%e8%af%81%e7%a0%81%e5%a6%82%e4%bd%95%e5%8e%bb%e5%b9%b2%e6%89%b0%e7%ba%bfpython-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1097412.html","title":{"rendered":"\u9a8c\u8bc1\u7801\u5982\u4f55\u53bb\u5e72\u6270\u7ebfpython"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24212214\/424aa1ab-086d-48b0-bf84-af5a68a60ab5.webp\" alt=\"\u9a8c\u8bc1\u7801\u5982\u4f55\u53bb\u5e72\u6270\u7ebfpython\" \/><\/p>\n<p><p> <strong>\u9a8c\u8bc1\u7801\u53bb\u5e72\u6270\u7ebf\u7684Python\u65b9\u6cd5\u53ef\u4ee5\u901a\u8fc7\u51e0\u79cd\u65b9\u5f0f\u5b9e\u73b0\uff1a\u56fe\u50cf\u5904\u7406\u3001\u6ee4\u6ce2\u7b97\u6cd5\u3001\u56fe\u50cf\u5206\u5272\u7b49\u3002\u56fe\u50cf\u5904\u7406\u5305\u62ec\u4e8c\u503c\u5316\u3001\u53bb\u566a\u3001\u8f6e\u5ed3\u68c0\u6d4b\u7b49\u65b9\u6cd5\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528Python\u53bb\u9664\u9a8c\u8bc1\u7801\u4e2d\u7684\u5e72\u6270\u7ebf\uff1a<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u56fe\u50cf\u5904\u7406\u6982\u8ff0<\/p>\n<\/p>\n<p><p>\u56fe\u50cf\u5904\u7406\u662f\u53bb\u9664\u9a8c\u8bc1\u7801\u5e72\u6270\u7ebf\u7684\u5173\u952e\u6b65\u9aa4\u3002\u5e38\u7528\u7684\u65b9\u6cd5\u5305\u62ec\uff1a<\/p>\n<\/p>\n<ol>\n<li><strong>\u4e8c\u503c\u5316<\/strong>\uff1a\u5c06\u56fe\u50cf\u8f6c\u6362\u4e3a\u9ed1\u767d\u56fe\u50cf\uff0c\u4f7f\u5904\u7406\u66f4\u7b80\u5355\u3002<\/li>\n<li><strong>\u53bb\u566a<\/strong>\uff1a\u53bb\u9664\u56fe\u50cf\u4e2d\u7684\u566a\u58f0\uff0c\u63d0\u9ad8\u56fe\u50cf\u7684\u6e05\u6670\u5ea6\u3002<\/li>\n<li><strong>\u8f6e\u5ed3\u68c0\u6d4b<\/strong>\uff1a\u8bc6\u522b\u56fe\u50cf\u4e2d\u7684\u8f6e\u5ed3\uff0c\u5206\u79bb\u51fa\u6709\u6548\u4fe1\u606f\u548c\u5e72\u6270\u7ebf\u3002<\/li>\n<\/ol>\n<p><p>\u4e8c\u3001\u4e8c\u503c\u5316\u56fe\u50cf<\/p>\n<\/p>\n<p><p>\u4e8c\u503c\u5316\u662f\u5c06\u56fe\u50cf\u8f6c\u6362\u4e3a\u9ed1\u767d\u56fe\u50cf\u7684\u8fc7\u7a0b\u3002\u53ef\u4ee5\u4f7f\u7528OpenCV\u5e93\u8fdb\u884c\u4e8c\u503c\u5316\u5904\u7406\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import cv2<\/p>\n<h2><strong>\u8bfb\u53d6\u56fe\u50cf<\/strong><\/h2>\n<p>image = cv2.imread(&#39;captcha.png&#39;, 0)<\/p>\n<h2><strong>\u4e8c\u503c\u5316\u5904\u7406<\/strong><\/h2>\n<p>_, binary_image = cv2.threshold(image, 127, 255, cv2.THRESH_BINARY)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c<code>cv2.imread<\/code>\u4ee5\u7070\u5ea6\u6a21\u5f0f\u8bfb\u53d6\u56fe\u50cf\uff0c<code>cv2.threshold<\/code>\u5c06\u56fe\u50cf\u4e8c\u503c\u5316\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001\u53bb\u566a\u5904\u7406<\/p>\n<\/p>\n<p><p>\u53bb\u566a\u662f\u53bb\u9664\u56fe\u50cf\u4e2d\u7684\u566a\u58f0\u3002\u5e38\u7528\u7684\u65b9\u6cd5\u5305\u62ec\u4e2d\u503c\u6ee4\u6ce2\u548c\u9ad8\u65af\u6ee4\u6ce2\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u4e2d\u503c\u6ee4\u6ce2\u53bb\u566a<\/p>\n<p>denoised_image = cv2.medianBlur(binary_image, 3)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e2d\u503c\u6ee4\u6ce2\u53ef\u4ee5\u6709\u6548\u53bb\u9664\u56fe\u50cf\u4e2d\u7684\u6912\u76d0\u566a\u58f0\uff0c\u63d0\u9ad8\u56fe\u50cf\u7684\u6e05\u6670\u5ea6\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u8f6e\u5ed3\u68c0\u6d4b<\/p>\n<\/p>\n<p><p>\u8f6e\u5ed3\u68c0\u6d4b\u53ef\u4ee5\u8bc6\u522b\u56fe\u50cf\u4e2d\u7684\u8f6e\u5ed3\uff0c\u4ece\u800c\u5206\u79bb\u51fa\u6709\u6548\u4fe1\u606f\u548c\u5e72\u6270\u7ebf\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u8f6e\u5ed3\u68c0\u6d4b<\/p>\n<p>contours, _ = cv2.findContours(denoised_image, cv2.RETR_EXTERNAL, cv2.CH<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>N_APPROX_SIMPLE)<\/p>\n<h2><strong>\u7ed8\u5236\u8f6e\u5ed3<\/strong><\/h2>\n<p>cv2.drawContours(denoised_image, contours, -1, (0, 255, 0), 3)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c<code>cv2.findContours<\/code>\u7528\u4e8e\u68c0\u6d4b\u56fe\u50cf\u4e2d\u7684\u8f6e\u5ed3\uff0c<code>cv2.drawContours<\/code>\u7528\u4e8e\u7ed8\u5236\u68c0\u6d4b\u5230\u7684\u8f6e\u5ed3\u3002<\/p>\n<\/p>\n<p><p>\u4e94\u3001\u5f62\u6001\u5b66\u64cd\u4f5c<\/p>\n<\/p>\n<p><p>\u5f62\u6001\u5b66\u64cd\u4f5c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u5904\u7406\u56fe\u50cf\uff0c\u53bb\u9664\u5e72\u6270\u7ebf\u3002\u5e38\u7528\u7684\u65b9\u6cd5\u5305\u62ec\u8150\u8680\u548c\u81a8\u80c0\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u5f62\u6001\u5b66\u64cd\u4f5c<\/p>\n<p>kernel = cv2.getStructuringElement(cv2.MORPH_RECT, (3, 3))<\/p>\n<h2><strong>\u8150\u8680\u64cd\u4f5c<\/strong><\/h2>\n<p>eroded_image = cv2.erode(denoised_image, kernel, iterations=1)<\/p>\n<h2><strong>\u81a8\u80c0\u64cd\u4f5c<\/strong><\/h2>\n<p>dilated_image = cv2.dilate(eroded_image, kernel, iterations=1)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8150\u8680\u64cd\u4f5c\u53ef\u4ee5\u53bb\u9664\u56fe\u50cf\u4e2d\u7684\u7ec6\u5c0f\u5e72\u6270\u7ebf\uff0c\u800c\u81a8\u80c0\u64cd\u4f5c\u53ef\u4ee5\u6062\u590d\u56fe\u50cf\u4e2d\u7684\u6709\u6548\u4fe1\u606f\u3002<\/p>\n<\/p>\n<p><p>\u516d\u3001\u56fe\u50cf\u5206\u5272<\/p>\n<\/p>\n<p><p>\u56fe\u50cf\u5206\u5272\u662f\u5c06\u56fe\u50cf\u5206\u5272\u6210\u4e0d\u540c\u533a\u57df\uff0c\u4ece\u800c\u8bc6\u522b\u9a8c\u8bc1\u7801\u4e2d\u7684\u5b57\u7b26\u3002\u5e38\u7528\u7684\u65b9\u6cd5\u5305\u62ec\u57fa\u4e8e\u533a\u57df\u751f\u957f\u7684\u5206\u5272\u7b97\u6cd5\u548c\u57fa\u4e8e\u9608\u503c\u7684\u5206\u5272\u7b97\u6cd5\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u57fa\u4e8e\u9608\u503c\u7684\u5206\u5272\u7b97\u6cd5<\/p>\n<p>_, segmented_image = cv2.threshold(dilated_image, 127, 255, cv2.THRESH_BINARY_INV)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c<code>cv2.threshold<\/code>\u7528\u4e8e\u5bf9\u56fe\u50cf\u8fdb\u884c\u57fa\u4e8e\u9608\u503c\u7684\u5206\u5272\uff0c\u5c06\u9a8c\u8bc1\u7801\u4e2d\u7684\u5b57\u7b26\u5206\u5272\u51fa\u6765\u3002<\/p>\n<\/p>\n<p><p>\u4e03\u3001\u5b57\u7b26\u8bc6\u522b<\/p>\n<\/p>\n<p><p>\u5b57\u7b26\u8bc6\u522b\u662f\u9a8c\u8bc1\u7801\u5904\u7406\u7684\u6700\u7ec8\u6b65\u9aa4\u3002\u53ef\u4ee5\u4f7f\u7528OCR\uff08\u5149\u5b66\u5b57\u7b26\u8bc6\u522b\uff09\u6280\u672f\u8fdb\u884c\u5b57\u7b26\u8bc6\u522b\u3002\u5e38\u7528\u7684OCR\u5e93\u5305\u62ecTesseract\u548cPytesseract\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pytesseract<\/p>\n<h2><strong>\u5b57\u7b26\u8bc6\u522b<\/strong><\/h2>\n<p>text = pytesseract.image_to_string(segmented_image, config=&#39;--psm 8&#39;)<\/p>\n<p>print(&quot;\u8bc6\u522b\u7ed3\u679c:&quot;, text)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c<code>pytesseract.image_to_string<\/code>\u7528\u4e8e\u8bc6\u522b\u56fe\u50cf\u4e2d\u7684\u5b57\u7b26\uff0c\u5e76\u8f93\u51fa\u8bc6\u522b\u7ed3\u679c\u3002<\/p>\n<\/p>\n<p><p>\u516b\u3001\u603b\u7ed3<\/p>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u6b65\u9aa4\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Python\u6709\u6548\u53bb\u9664\u9a8c\u8bc1\u7801\u4e2d\u7684\u5e72\u6270\u7ebf\uff0c\u5e76\u8bc6\u522b\u9a8c\u8bc1\u7801\u4e2d\u7684\u5b57\u7b26\u3002\u6574\u4e2a\u8fc7\u7a0b\u5305\u62ec\u56fe\u50cf\u5904\u7406\u3001\u4e8c\u503c\u5316\u3001\u53bb\u566a\u3001\u8f6e\u5ed3\u68c0\u6d4b\u3001\u5f62\u6001\u5b66\u64cd\u4f5c\u3001\u56fe\u50cf\u5206\u5272\u548c\u5b57\u7b26\u8bc6\u522b\u3002<\/p>\n<\/p>\n<p><p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4e0d\u540c\u7684\u9a8c\u8bc1\u7801\u53ef\u80fd\u9700\u8981\u4e0d\u540c\u7684\u5904\u7406\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u60c5\u51b5\u8c03\u6574\u53c2\u6570\u548c\u65b9\u6cd5\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u60a8\u5728\u5904\u7406\u9a8c\u8bc1\u7801\u5e72\u6270\u7ebf\u65b9\u9762\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u9a8c\u8bc1\u7801\u53bb\u5e72\u6270\u7ebf\u7684\u8fc7\u7a0b\u662f\u4ec0\u4e48\uff1f<\/strong><br \/>\u9a8c\u8bc1\u7801\u4e2d\u7684\u5e72\u6270\u7ebf\u901a\u5e38\u662f\u4e3a\u4e86\u589e\u52a0\u8bc6\u522b\u96be\u5ea6\u800c\u8bbe\u8ba1\u7684\u3002\u53bb\u5e72\u6270\u7ebf\u7684\u8fc7\u7a0b\u901a\u5e38\u6d89\u53ca\u56fe\u50cf\u5904\u7406\u6280\u672f\uff0c\u5305\u62ec\u56fe\u50cf\u9884\u5904\u7406\u3001\u9608\u503c\u5904\u7406\u3001\u53bb\u566a\u58f0\u548c\u8f6e\u5ed3\u63d0\u53d6\u7b49\u6b65\u9aa4\u3002\u4f7f\u7528Python\u7684\u56fe\u50cf\u5904\u7406\u5e93\uff08\u5982OpenCV\u548cPIL\uff09\uff0c\u53ef\u4ee5\u5bf9\u9a8c\u8bc1\u7801\u56fe\u50cf\u8fdb\u884c\u8fc7\u6ee4\u3001\u589e\u5f3a\u548c\u8bc6\u522b\uff0c\u4ece\u800c\u6709\u6548\u53bb\u9664\u5e72\u6270\u7ebf\u3002<\/p>\n<p><strong>\u4f7f\u7528Python\u53bb\u9664\u5e72\u6270\u7ebf\u9700\u8981\u54ea\u4e9b\u5e93\uff1f<\/strong><br \/>\u5728\u4f7f\u7528Python\u5904\u7406\u9a8c\u8bc1\u7801\u65f6\uff0c\u5e38\u7528\u7684\u5e93\u5305\u62ecOpenCV\u3001NumPy\u548cPIL\uff08Pillow\uff09\u3002OpenCV\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u56fe\u50cf\u5904\u7406\u529f\u80fd\uff0c\u800cNumPy\u5219\u4fbf\u4e8e\u8fdb\u884c\u6570\u7ec4\u64cd\u4f5c\uff0cPIL\u5219\u7528\u4e8e\u56fe\u50cf\u7684\u57fa\u672c\u64cd\u4f5c\u548c\u683c\u5f0f\u8f6c\u6362\u3002\u901a\u8fc7\u7ec4\u5408\u8fd9\u4e9b\u5e93\uff0c\u53ef\u4ee5\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u56fe\u50cf\u5904\u7406\u4efb\u52a1\uff0c\u8fbe\u5230\u53bb\u9664\u5e72\u6270\u7ebf\u7684\u6548\u679c\u3002<\/p>\n<p><strong>\u53bb\u5e72\u6270\u7ebf\u7684\u65b9\u6cd5\u6709\u54ea\u4e9b\uff1f<\/strong><br \/>\u53bb\u5e72\u6270\u7ebf\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\u3002\u5e38\u89c1\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528\u5f62\u6001\u5b66\u64cd\u4f5c\uff08\u5982\u8150\u8680\u548c\u81a8\u80c0\uff09\u6765\u6d88\u9664\u5e72\u6270\u7ebf\u3001\u5e94\u7528\u9ad8\u65af\u6a21\u7cca\u6765\u5e73\u6ed1\u56fe\u50cf\u3001\u5229\u7528\u8fb9\u7f18\u68c0\u6d4b\u7b97\u6cd5\u8bc6\u522b\u5b57\u7b26\u8f6e\u5ed3\u3001\u4ee5\u53ca\u901a\u8fc7\u9608\u503c\u5904\u7406\u5c06\u5e72\u6270\u7ebf\u4e0e\u5b57\u7b26\u533a\u5206\u5f00\u3002\u8fd9\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u7684\u9a8c\u8bc1\u7801\u7279\u70b9\u8fdb\u884c\u8c03\u6574\u548c\u7ec4\u5408\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u6548\u679c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u9a8c\u8bc1\u7801\u53bb\u5e72\u6270\u7ebf\u7684Python\u65b9\u6cd5\u53ef\u4ee5\u901a\u8fc7\u51e0\u79cd\u65b9\u5f0f\u5b9e\u73b0\uff1a\u56fe\u50cf\u5904\u7406\u3001\u6ee4\u6ce2\u7b97\u6cd5\u3001\u56fe\u50cf\u5206\u5272\u7b49\u3002\u56fe\u50cf\u5904\u7406\u5305\u62ec\u4e8c\u503c\u5316\u3001\u53bb\u566a [&hellip;]","protected":false},"author":3,"featured_media":1097415,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1097412"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1097412"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1097412\/revisions"}],"predecessor-version":[{"id":1097416,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1097412\/revisions\/1097416"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1097415"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1097412"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1097412"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1097412"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}