{"id":204421,"date":"2025-05-29T12:09:51","date_gmt":"2025-05-29T04:09:51","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204421\/"},"modified":"2025-05-29T12:09:51","modified_gmt":"2025-05-29T04:09:51","slug":"python%e5%9b%be%e7%89%87%e8%a3%81%e5%89%aa%e5%90%8e%e5%a6%82%e4%bd%95%e8%bd%ac%e6%8d%a2%e5%9d%90%e6%a0%87%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204421\/","title":{"rendered":"Python\u56fe\u7247\u88c1\u526a\u540e\u5982\u4f55\u8f6c\u6362\u5750\u6807\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

Python\u56fe\u7247\u88c1\u526a\u540e\u5982\u4f55\u8f6c\u6362\u5750\u6807\uff1f<\/h1>\n

\u6b22\u8fce\u5404\u4f4d\u5c0f\u4f19\u4f34\u6765\u5230\uff0c\u76f8\u805a\u4e8e\u6b64\u90fd\u662f\u7f18\u54c8\u54c8\u54c8\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\u975e\u5e38\u611f\u5174\u8da3\u6216\u8005\u6b63\u5728\u81ea\u5b66\uff0c\u90fd\u53ef\u4ee5\u5173\u6ce8\u6211\uff0c\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\uff01\u5f53\u7136\uff0c\u6709\u4ec0\u4e48\u5efa\u8bae\u4e5f\u6b22\u8fce\u5728\u8bc4\u8bba\u7559\u8a00\u63d0\u51fa\uff01\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n

<\/p>\n

python\u56fe\u7247\u88c1\u526a\u53ca\u5750\u6807\u8f6c\u6362<\/strong><\/p>\n

\u5982\u4f55\u88c1\u526a\u56fe\u7247\uff1f<\/strong><\/p>\n

\u4f7f\u7528opencv\u7684numpy\u5207\u7247\u64cd\u4f5c\u6216numpy\u7684hsplit\u51fd\u6570\u53ef\u4ee5\u88c1\u526a\u56fe\u7247\u3002\u4ee5\u4e0b\u4e3a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n

import cv2\nimport numpy as np\n\nimg = cv2.imread('image.jpg')\nsub_img = img[y1:y2, x1:x2].copy()  # \u7528\u5207\u7247\u64cd\u4f5c\u88c1\u526a\u56fe\u7247<\/pre>\n
\u5982\u4f55\u8f6c\u6362\u88c1\u526a\u540e\u56fe\u7247\u7684\u5750\u6807\uff1f<\/strong><\/p>\n
\u5f53\u88c1\u526a\u540e\u7684\u56fe\u7247\u88ab\u8f6c\u6362\u5230\u539f\u56fe\u65f6\uff0c\u5176\u5750\u6807\u9700\u8981\u8fdb\u884c\u8f6c\u6362\u3002\u5bf9\u4e8e\u5728\u539f\u56fe\u5de6\u4e0a\u89d2\u7684\u88c1\u526a\uff0c\u5176\u5750\u6807\u4fdd\u6301\u4e0d\u53d8\u3002\u5bf9\u4e8e\u5728\u539f\u56fe\u5185\u90e8\u7684\u88c1\u526a\uff0c\u5176\u5750\u6807\u9700\u8981\u52a0\u4e0a\u88c1\u526a\u533a\u57df\u5728\u539f\u56fe\u4e2d\u7684\u4f4d\u7f6e\uff1a<\/p>\n
\u539f\u56fe\u5750\u6807 = \u88c1\u526a\u540e\u56fe\u7247\u5750\u6807 + (\u88c1\u526a\u533a\u57df\u5de6\u4e0a\u89d2\u539f\u56fe\u5750\u6807)<\/pre>\n
\u4f8b\u5982\uff0c\u539f\u56fe\u5927\u5c0f\u4e3a1000×1000\uff0c\u88c1\u526a\u4e86\u4e00\u5757\u5927\u5c0f\u4e3a200×200\u7684\u56fe\u7247\uff0c\u88c1\u526a\u533a\u57df\u5728\u539f\u56fe\u4e2d\u7684\u5de6\u4e0a\u89d2\u5750\u6807\u4e3a(200, 300)\u3002\u90a3\u4e48\uff0c\u88c1\u526a\u540e\u56fe\u7247\u4e2d\u5de6\u4e0a\u89d2\u7684\u5750\u6807\uff0810, 20\uff09\u5728\u539f\u56fe\u4e2d\u7684\u5750\u6807\u4e3a\uff1a<\/p>\n
\u539f\u56fe\u5750\u6807 = (10, 20) + (200, 300) = (210, 320)<\/pre>\n
\u66f4\u6df1\u5165\u7684\u89e3\u51b3\u65b9\u6cd5\uff1a<\/strong><\/p>\n
    \n
  • opencv\u5b9e\u73b0\uff1a<\/strong><\/li>\n<\/ul>\n
    \u4f7f\u7528\u4e0a\u8ff0\u7684\u5207\u7247\u64cd\u4f5c\u6216hsplit\u51fd\u6570\u88c1\u526a\u56fe\u7247\u3002\u4f7f\u7528numpy\u5e7f\u64ad\u8ba1\u7b97\u88c1\u526a\u540e\u56fe\u7247\u7684\u5750\u6807\u8f6c\u6362\u3002<\/p>\n
      \n
    • pillow\u5b9e\u73b0\uff1a<\/strong><\/li>\n<\/ul>\n
      \u4f7f\u7528pillow\u7684crop\u65b9\u6cd5\u88c1\u526a\u56fe\u7247\u3002\u4f7f\u7528split_box\u51fd\u6570\u8ba1\u7b97\u88c1\u526a\u540e\u56fe\u7247\u7684\u5750\u6807\u8f6c\u6362\u3002<\/p>\n
      \u8fd9\u4e9b\u65b9\u6cd5\u63d0\u4f9b\u4e86\u89e3\u51b3python\u56fe\u7247\u88c1\u526a\u548c\u5750\u6807\u8f6c\u6362\u7684\u6709\u6548\u9014\u5f84\uff0c\u53ef\u4ee5\u6839\u636e\u7279\u5b9a\u9700\u8981\u9009\u62e9\u5408\u9002\u7684\u5b9e\u73b0\u65b9\u6848\u3002<\/p>\n
      \u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6587\u7ae0\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n","protected":false},"excerpt":{"rendered":"
      Python\u56fe\u7247\u88c1\u526a\u540e\u5982\u4f55\u8f6c\u6362\u5750...<\/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-204421","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204421","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=204421"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204421\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204421"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}