{"id":980192,"date":"2024-12-27T06:52:33","date_gmt":"2024-12-26T22:52:33","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/980192.html"},"modified":"2024-12-27T06:52:36","modified_gmt":"2024-12-26T22:52:36","slug":"python%e5%9b%be%e7%89%87%e5%a6%82%e4%bd%95%e5%8f%98%e6%8d%a2%e8%a7%86%e8%a7%92","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/980192.html","title":{"rendered":"python\u56fe\u7247\u5982\u4f55\u53d8\u6362\u89c6\u89d2"},"content":{"rendered":"

\"python\u56fe\u7247\u5982\u4f55\u53d8\u6362\u89c6\u89d2\"<\/p>\n

\u5f00\u5934\u6bb5\u843d\uff1a
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u6765\u53d8\u6362\u56fe\u7247\u7684\u89c6\u89d2\uff0c\u4e3b\u8981\u5305\u62ec\u4f7f\u7528OpenCV\u8fdb\u884c\u900f\u89c6\u53d8\u6362\u3001\u4f7f\u7528PIL\u5e93\u8fdb\u884c\u7b80\u5355\u7684\u56fe\u50cf\u65cb\u8f6c\u3001\u7ed3\u5408NumPy\u8fdb\u884c\u81ea\u5b9a\u4e49\u53d8\u6362<\/strong>\u7b49\u3002\u5176\u4e2d\uff0c\u4f7f\u7528OpenCV\u8fdb\u884c\u900f\u89c6\u53d8\u6362<\/strong>\u662f\u4e00\u79cd\u975e\u5e38\u5e38\u7528\u4e14\u5f3a\u5927\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u7cbe\u786e\u7684\u77e9\u9635\u64cd\u4f5c\u548c\u4e30\u5bcc\u7684\u56fe\u50cf\u5904\u7406\u529f\u80fd\u3002\u900f\u89c6\u53d8\u6362\uff08Perspective Transformation\uff09\u662f\u4e00\u79cd\u51e0\u4f55\u53d8\u6362\u6280\u672f\uff0c\u53ef\u4ee5\u5c06\u56fe\u50cf\u4ece\u4e00\u79cd\u89c6\u89d2\u53d8\u6362\u5230\u53e6\u4e00\u79cd\u89c6\u89d2\uff0c\u901a\u5e38\u7528\u4e8e\u77eb\u6b63\u56fe\u50cf\u4e2d\u7684\u900f\u89c6\u5931\u771f\u6216\u6539\u53d8\u56fe\u50cf\u7684\u89c6\u89c9\u6548\u679c\u3002\u901a\u8fc7\u5b9a\u4e49\u56fe\u50cf\u4e2d\u56db\u4e2a\u70b9\u7684\u5750\u6807\uff0c\u5e76\u8ba1\u7b97\u53d8\u6362\u77e9\u9635\uff0cOpenCV\u80fd\u591f\u5b9e\u73b0\u8fd9\u79cd\u590d\u6742\u7684\u89c6\u89d2\u53d8\u6362\u3002<\/p>\n<\/p>\n

\n

\u4e00\u3001\u4f7f\u7528OPENCV\u8fdb\u884c\u900f\u89c6\u53d8\u6362<\/p>\n<\/p>\n

OpenCV\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u8ba1\u7b97\u673a\u89c6\u89c9\u5e93\uff0c\u5b83\u63d0\u4f9b\u4e86\u8bb8\u591a\u7528\u4e8e\u56fe\u50cf\u5904\u7406\u7684\u529f\u80fd\u3002\u900f\u89c6\u53d8\u6362\u662fOpenCV\u4e2d\u4e00\u4e2a\u975e\u5e38\u6709\u7528\u7684\u529f\u80fd\uff0c\u5141\u8bb8\u5c06\u56fe\u50cf\u4ece\u4e00\u4e2a\u89c6\u89d2\u53d8\u6362\u5230\u53e6\u4e00\u4e2a\u89c6\u89d2\u3002<\/p>\n<\/p>\n

    \n
  1. \n

    \u83b7\u53d6\u56db\u4e2a\u5173\u952e\u70b9\u5750\u6807
    \u5728\u8fdb\u884c\u900f\u89c6\u53d8\u6362\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5b9a\u4e49\u56fe\u50cf\u4e2d\u56db\u4e2a\u5173\u952e\u70b9\u7684\u5750\u6807\u3002\u8fd9\u4e9b\u70b9\u901a\u5e38\u662f\u56fe\u50cf\u4e2d\u9700\u8981\u4fdd\u6301\u76f4\u7ebf\u7684\u8fb9\u754c\u70b9\u3002\u901a\u8fc7\u7528\u6237\u4ea4\u4e92\u6216\u81ea\u52a8\u68c0\u6d4b\uff0c\u53ef\u4ee5\u83b7\u53d6\u8fd9\u4e9b\u5750\u6807\u3002<\/p>\n<\/p>\n<\/li>\n

  2. \n

    \u8ba1\u7b97\u53d8\u6362\u77e9\u9635
    \u4f7f\u7528OpenCV\u7684getPerspectiveTransform<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u6839\u636e\u6e90\u56fe\u50cf\u548c\u76ee\u6807\u56fe\u50cf\u7684\u56db\u4e2a\u70b9\u5750\u6807\u8ba1\u7b97\u53d8\u6362\u77e9\u9635\u3002\u8fd9\u4e2a\u77e9\u9635\u662f\u4e00\u4e2a3×3\u7684\u77e9\u9635\uff0c\u5305\u542b\u4e86\u900f\u89c6\u53d8\u6362\u7684\u6240\u6709\u4fe1\u606f\u3002<\/p>\n<\/p>\n<\/li>\n

  3. \n

    \u5e94\u7528\u900f\u89c6\u53d8\u6362
    \u4e00\u65e6\u8ba1\u7b97\u51fa\u53d8\u6362\u77e9\u9635\uff0c\u53ef\u4ee5\u4f7f\u7528OpenCV\u7684warpPerspective<\/code>\u51fd\u6570\u5bf9\u56fe\u50cf\u8fdb\u884c\u900f\u89c6\u53d8\u6362\u3002\u8fd9\u4e2a\u51fd\u6570\u4f1a\u5c06\u6e90\u56fe\u50cf\u6839\u636e\u53d8\u6362\u77e9\u9635\u6295\u5f71\u5230\u76ee\u6807\u5e73\u9762\u4e0a\uff0c\u4ece\u800c\u5b9e\u73b0\u89c6\u89d2\u7684\u53d8\u6362\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n

    \u4e8c\u3001\u4f7f\u7528PIL\u5e93\u8fdb\u884c\u7b80\u5355\u7684\u56fe\u50cf\u65cb\u8f6c<\/p>\n<\/p>\n

    Python\u7684PIL\uff08Python Imaging Library\uff09\u5e93\u63d0\u4f9b\u4e86\u7b80\u5355\u7684\u56fe\u50cf\u5904\u7406\u529f\u80fd\uff0c\u5305\u62ec\u56fe\u50cf\u65cb\u8f6c\u3002\u867d\u7136PIL\u7684\u529f\u80fd\u4e0d\u5982OpenCV\u4e30\u5bcc\uff0c\u4f46\u5bf9\u4e8e\u7b80\u5355\u7684\u89c6\u89d2\u53d8\u6362\uff0cPIL\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u9009\u62e9\u3002<\/p>\n<\/p>\n

      \n
    1. \n

      \u52a0\u8f7d\u56fe\u50cf
      \u9996\u5148\uff0c\u9700\u8981\u4f7f\u7528PIL\u7684Image.open<\/code>\u65b9\u6cd5\u52a0\u8f7d\u56fe\u50cf\u3002\u8fd9\u5c06\u8fd4\u56de\u4e00\u4e2aImage\u5bf9\u8c61\uff0c\u5141\u8bb8\u8fdb\u884c\u8fdb\u4e00\u6b65\u7684\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<\/li>\n

    2. \n

      \u65cb\u8f6c\u56fe\u50cf
      \u4f7f\u7528Image\u5bf9\u8c61\u7684rotate<\/code>\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5bf9\u56fe\u50cf\u8fdb\u884c\u65cb\u8f6c\u64cd\u4f5c\u3002\u8fd9\u4e2a\u65b9\u6cd5\u5141\u8bb8\u6307\u5b9a\u65cb\u8f6c\u7684\u89d2\u5ea6\uff0c\u5e76\u652f\u6301\u987a\u65f6\u9488\u548c\u9006\u65f6\u9488\u65b9\u5411\u7684\u65cb\u8f6c\u3002<\/p>\n<\/p>\n<\/li>\n

    3. \n

      \u4fdd\u5b58\u53d8\u6362\u540e\u7684\u56fe\u50cf
      \u65cb\u8f6c\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528Image\u5bf9\u8c61\u7684save<\/code>\u65b9\u6cd5\u5c06\u53d8\u6362\u540e\u7684\u56fe\u50cf\u4fdd\u5b58\u5230\u6587\u4ef6\u4e2d\u3002\u8fd9\u5bf9\u4e8e\u9700\u8981\u5b58\u50a8\u53d8\u6362\u7ed3\u679c\u7684\u5e94\u7528\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n

      \u4e09\u3001\u7ed3\u5408NUMPY\u8fdb\u884c\u81ea\u5b9a\u4e49\u53d8\u6362<\/p>\n<\/p>\n

      NumPy\u662fPython\u7684\u4e00\u4e2a\u5f3a\u5927\u79d1\u5b66\u8ba1\u7b97\u5e93\uff0c\u5b83\u63d0\u4f9b\u4e86\u591a\u7ef4\u6570\u7ec4\u548c\u77e9\u9635\u8fd0\u7b97\u7684\u529f\u80fd\u3002\u5728\u56fe\u50cf\u5904\u7406\u9886\u57df\uff0cNumPy\u53ef\u4ee5\u7528\u4e8e\u81ea\u5b9a\u4e49\u590d\u6742\u7684\u56fe\u50cf\u53d8\u6362\u3002<\/p>\n<\/p>\n

        \n
      1. \n

        \u56fe\u50cf\u6570\u636e\u8f6c\u6362\u4e3aNumPy\u6570\u7ec4
        \u9996\u5148\uff0c\u9700\u8981\u5c06\u56fe\u50cf\u6570\u636e\u8f6c\u6362\u4e3aNumPy\u6570\u7ec4\u3002\u4f7f\u7528PIL\u6216OpenCV\u52a0\u8f7d\u56fe\u50cf\u540e\uff0c\u53ef\u4ee5\u8c03\u7528numpy.array<\/code>\u65b9\u6cd5\u5c06\u56fe\u50cf\u6570\u636e\u8f6c\u6362\u4e3aNumPy\u6570\u7ec4\u3002<\/p>\n<\/p>\n<\/li>\n

      2. \n

        \u5b9a\u4e49\u53d8\u6362\u77e9\u9635
        \u901a\u8fc7\u5b9a\u4e49\u4e00\u4e2a\u81ea\u5b9a\u4e49\u7684\u53d8\u6362\u77e9\u9635\uff0c\u53ef\u4ee5\u5b9e\u73b0\u7279\u6b8a\u7684\u56fe\u50cf\u53d8\u6362\u3002\u8fd9\u4e2a\u77e9\u9635\u901a\u5e38\u662f\u4e00\u4e2a3×3\u7684\u77e9\u9635\uff0c\u63cf\u8ff0\u4e86\u56fe\u50cf\u5982\u4f55\u4ece\u4e00\u4e2a\u5750\u6807\u7cfb\u8f6c\u6362\u5230\u53e6\u4e00\u4e2a\u5750\u6807\u7cfb\u3002<\/p>\n<\/p>\n<\/li>\n

      3. \n

        \u5e94\u7528\u53d8\u6362
        \u4f7f\u7528NumPy\u7684\u77e9\u9635\u8fd0\u7b97\uff0c\u53ef\u4ee5\u5bf9\u56fe\u50cf\u6570\u636e\u8fdb\u884c\u53d8\u6362\u3002\u901a\u8fc7\u77e9\u9635\u4e58\u6cd5\uff0c\u5c06\u56fe\u50cf\u7684\u6bcf\u4e2a\u50cf\u7d20\u5750\u6807\u5e94\u7528\u4e8e\u53d8\u6362\u77e9\u9635\uff0c\u5f97\u5230\u65b0\u7684\u56fe\u50cf\u6570\u636e\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n

        \u56db\u3001\u5e94\u7528\u573a\u666f\u548c\u6ce8\u610f\u4e8b\u9879<\/p>\n<\/p>\n

        \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u56fe\u50cf\u7684\u89c6\u89d2\u53d8\u6362\u6709\u8bb8\u591a\u573a\u666f\uff0c\u4f8b\u5982\u5728\u56fe\u50cf\u589e\u5f3a\u3001\u7279\u5f81\u5bf9\u9f50\u3001\u8fd0\u52a8\u68c0\u6d4b\u7b49\u9886\u57df\u3002\u4f7f\u7528\u8fd9\u4e9b\u6280\u672f\u53ef\u4ee5\u63d0\u9ad8\u56fe\u50cf\u7684\u8d28\u91cf\u548c\u51c6\u786e\u6027\u3002<\/p>\n<\/p>\n

          \n
        1. \n

          \u56fe\u50cf\u589e\u5f3a
          \u900f\u89c6\u53d8\u6362\u53ef\u4ee5\u7528\u4e8e\u56fe\u50cf\u589e\u5f3a\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u6821\u6b63\u89c6\u89d2\u5931\u771f\u7684\u573a\u666f\u4e0b\u3002\u901a\u8fc7\u8c03\u6574\u56fe\u50cf\u7684\u89c6\u89d2\uff0c\u80fd\u591f\u83b7\u5f97\u66f4\u81ea\u7136\u3001\u66f4\u771f\u5b9e\u7684\u56fe\u50cf\u8868\u73b0\u3002<\/p>\n<\/p>\n<\/li>\n

        2. \n

          \u7279\u5f81\u5bf9\u9f50
          \u5728\u56fe\u50cf\u8bc6\u522b\u548c\u8ba1\u7b97\u673a\u89c6\u89c9\u4e2d\uff0c\u7279\u5f81\u5bf9\u9f50\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u6b65\u9aa4\u3002\u901a\u8fc7\u89c6\u89d2\u53d8\u6362\uff0c\u53ef\u4ee5\u5c06\u4e0d\u540c\u89c6\u89d2\u4e0b\u7684\u540c\u4e00\u5bf9\u8c61\u5bf9\u9f50\uff0c\u4ee5\u4fbf\u8fdb\u884c\u66f4\u51c6\u786e\u7684\u8bc6\u522b\u548c\u5206\u6790\u3002<\/p>\n<\/p>\n<\/li>\n

        3. \n

          \u8fd0\u52a8\u68c0\u6d4b
          \u5728\u89c6\u9891\u5904\u7406\u548c\u8fd0\u52a8\u68c0\u6d4b\u4e2d\uff0c\u89c6\u89d2\u53d8\u6362\u80fd\u591f\u5e2e\u52a9\u5206\u6790\u7269\u4f53\u7684\u8fd0\u52a8\u8f68\u8ff9\u3002\u901a\u8fc7\u53d8\u6362\u89c6\u89d2\uff0c\u53ef\u4ee5\u66f4\u6e05\u695a\u5730\u89c2\u5bdf\u7269\u4f53\u7684\u8fd0\u52a8\uff0c\u5e76\u8fdb\u884c\u76f8\u5e94\u7684\u5206\u6790\u548c\u5224\u65ad\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n

          \u5728\u4f7f\u7528\u8fd9\u4e9b\u6280\u672f\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u56fe\u50cf\u7684\u5206\u8fa8\u7387\u548c\u53d8\u6362\u7cbe\u5ea6\u3002\u8fc7\u5927\u7684\u5206\u8fa8\u7387\u53ef\u80fd\u5bfc\u81f4\u8ba1\u7b97\u65f6\u95f4\u8fc7\u957f\uff0c\u800c\u4e0d\u51c6\u786e\u7684\u53d8\u6362\u77e9\u9635\u53ef\u80fd\u5bfc\u81f4\u56fe\u50cf\u5931\u771f\u3002\u56e0\u6b64\uff0c\u5408\u7406\u9009\u62e9\u53d8\u6362\u53c2\u6570\u548c\u65b9\u6cd5\u662f\u5b9e\u73b0\u9ad8\u8d28\u91cf\u56fe\u50cf\u53d8\u6362\u7684\u5173\u952e\u3002<\/p>\n<\/p>\n

          \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

          \u5982\u4f55\u4f7f\u7528Python\u5bf9\u56fe\u7247\u8fdb\u884c\u89c6\u89d2\u53d8\u6362\uff1f<\/strong>
          \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528OpenCV\u5e93\u5b9e\u73b0\u56fe\u7247\u7684\u89c6\u89d2\u53d8\u6362\u3002\u901a\u8fc7\u5bf9\u6e90\u56fe\u50cf\u8fdb\u884c\u900f\u89c6\u53d8\u6362\uff0c\u53ef\u4ee5\u6539\u53d8\u5176\u89c6\u89d2\u3002\u9996\u5148\uff0c\u9700\u5b89\u88c5OpenCV\u5e93\uff0c\u7136\u540e\u8bfb\u53d6\u56fe\u7247\u5e76\u5b9a\u4e49\u6e90\u70b9\u548c\u76ee\u6807\u70b9\uff0c\u4f7f\u7528cv2.getPerspectiveTransform\u51fd\u6570\u8ba1\u7b97\u53d8\u6362\u77e9\u9635\uff0c\u6700\u540e\u5e94\u7528cv2.warpPerspective\u8fdb\u884c\u53d8\u6362\u3002<\/p>\n

          \u5728\u8fdb\u884c\u89c6\u89d2\u53d8\u6362\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u54ea\u4e9b\u53c2\u6570\u8bbe\u7f6e\uff1f<\/strong>
          \u8fdb\u884c\u89c6\u89d2\u53d8\u6362\u65f6\uff0c\u9009\u62e9\u6e90\u70b9\u548c\u76ee\u6807\u70b9\u81f3\u5173\u91cd\u8981\u3002\u6e90\u70b9\u5e94\u4e3a\u56fe\u50cf\u4e2d\u9700\u8981\u53d8\u6362\u7684\u533a\u57df\u7684\u56db\u4e2a\u89d2\uff0c\u800c\u76ee\u6807\u70b9\u5219\u662f\u4f60\u5e0c\u671b\u8fd9\u4e9b\u89d2\u5728\u65b0\u56fe\u50cf\u4e2d\u51fa\u73b0\u7684\u4f4d\u7f6e\u3002\u786e\u4fdd\u8fd9\u4e9b\u70b9\u7684\u987a\u5e8f\u6b63\u786e\uff0c\u6bd4\u5982\u987a\u65f6\u9488\u6216\u9006\u65f6\u9488\u65b9\u5411\uff0c\u4ee5\u786e\u4fdd\u53d8\u6362\u6548\u679c\u7406\u60f3\u3002\u6b64\u5916\uff0c\u53d8\u6362\u540e\u7684\u56fe\u50cf\u5c3a\u5bf8\u4e5f\u9700\u5408\u7406\u8bbe\u7f6e\uff0c\u4ee5\u907f\u514d\u5931\u771f\u6216\u4fe1\u606f\u4e22\u5931\u3002<\/p>\n

          \u6709\u6ca1\u6709\u5176\u4ed6Python\u5e93\u53ef\u4ee5\u5b9e\u73b0\u56fe\u7247\u7684\u89c6\u89d2\u53d8\u6362\uff1f<\/strong>
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