{"id":106,"date":"2023-12-12T22:33:19","date_gmt":"2023-06-10T12:03:36","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%a6%82%e4%bd%95%e5%af%b9pdf%e5%92%8c%e5%9b%be%e5%83%8f%e6%89%a7%e8%a1%8c%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%ab%afocr\/"},"modified":"2025-08-01T00:04:10","modified_gmt":"2025-07-31T16:04:10","slug":"%e5%a6%82%e4%bd%95%e5%af%b9pdf%e5%92%8c%e5%9b%be%e5%83%8f%e6%89%a7%e8%a1%8c%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%ab%afocr","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%af%b9pdf%e5%92%8c%e5%9b%be%e5%83%8f%e6%89%a7%e8%a1%8c%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%ab%afocr\/","title":{"rendered":"\u670d\u52a1\u5668\u7aefPDF\u4e0e\u56fe\u50cfOCR\uff1a\u9ad8\u6548\u6587\u672c\u8bc6\u522b\u6307\u5357"},"content":{"rendered":"<h3>\u7b80\u4ecb<\/h3>\n<p>\u5149\u5b66\u5b57\u7b26\u8bc6\u522b\uff08OCR\uff09\u4e3b\u8981\u7528\u4e8e\u5c06\u626b\u63cf\u56fe\u50cf\u4e2d\u7684\u6587\u5b57\u8f6c\u6362\u4e3a\u53ef\u9009\u62e9\u3001\u53ef\u590d\u5236\u3001\u53ef\u7f16\u7801\u548c\u53ef\u5d4c\u5165\u7684\u6587\u672c\u3002\u8bb8\u591a\u73b0\u4ee3\u684c\u9762\u548c\u79fb\u52a8\u5e94\u7528\u7a0b\u5e8f\u4ee5\u53ca\u626b\u63cf\u8f6f\u4ef6\u90fd\u5185\u7f6e\u4e86OCR\u529f\u80fd\uff0c\u5e76\u4e14\u5927\u591a\u6570\u6d41\u901a\u7684PDF\u6587\u6863\u90fd\u5d4c\u5165\u4e86\u6587\u672c\u3002\u7136\u800c\uff0c\u60a8\u4ecd\u53ef\u80fd\u9047\u5230\u5305\u542b\u5927\u91cf\u975e\u5d4c\u5165\u6587\u672c\u7684\u6587\u4ef6\u6216\u56fe\u50cf\uff0c\u65e0\u6cd5\u81ea\u52a8\u63d0\u53d6\u3002<\/p>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e00\u5957\u5f00\u6e90\u5de5\u5177\u7684\u6d41\u7a0b\u6765\u81ea\u52a8\u6267\u884c\u5149\u5b66\u5b57\u7b26\u8bc6\u522b\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c06\u6587\u6863\u6216\u56fe\u50cf\u5bfc\u5165\u5230\u9700\u8981\u63d0\u53d6\u6587\u672c\u7684\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u6216\u8005\u60a8\u6b63\u5728\u5904\u7406\u4e00\u5927\u6279\u9700\u8981\u5bf9\u5176\u5168\u6587\u5efa\u7acb\u7d22\u5f15\u7684\u6587\u6863\uff0c\u8fd9\u5c06\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p>\u672c\u6559\u7a0b\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528Ghostscript\u3001Tesseract\u548cPDFtk\u8bbe\u7f6eOCR\u6d41\u7a0b\u3002\u60a8\u8fd8\u5c06\u4e86\u89e3\u5176\u4ed6\u53ef\u4ee5\u66ff\u4ee3\u6216\u7528\u4e8e\u6b64\u57fa\u7ebf\u529f\u80fd\u7684\u5de5\u5177\u3002<\/p>\n<h3>\u5148\u51b3\u6761\u4ef6<\/h3>\n<p>\u5927\u591a\u6570\u5e73\u53f0\u90fd\u63d0\u4f9b\u8fd9\u4e9b\u5de5\u5177\u3002\u672c\u6559\u7a0b\u5c06\u4e3aUbuntu 22.04\u670d\u52a1\u5668\u63d0\u4f9b\u5b89\u88c5\u8bf4\u660e\uff0c\u8bf7\u6309\u7167\u6211\u4eec\u7684<a href=\"https:\/\/www.digitalocean.com\/community\/tutorials\/initial-server-setup-with-ubuntu-22-04\">Ubuntu 22.04\u521d\u59cb\u670d\u52a1\u5668\u8bbe\u7f6e\u6307\u5357<\/a>\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<h2>\u6b65\u9aa41 &#8211; \u5b89\u88c5Ghostscript\u3001Tesseract\u548cPDFtk<\/h2>\n<p>OCR\u53ef\u4ee5\u5728\u5305\u542b\u56fe\u50cf\u5185\u5bb9\u7684PDF\u548c\u72ec\u7acb\u56fe\u7247\u4e0a\u6267\u884c\u3002\u5904\u7406PDF\u65f6\u9700\u8981\u4e00\u4e9b\u989d\u5916\u7684\u6b65\u9aa4\uff0c\u5982\u679c\u60a8\u53ea\u5904\u7406\u56fe\u7247\u672c\u8eab\uff0c\u53ef\u4ee5\u8df3\u8fc7\u8fd9\u4e9b\u6b65\u9aa4\u3002<\/p>\n<p>\u60a8\u5c06\u9700\u8981\u4e09\u4e2a\u5de5\u5177\u6765\u8fdb\u884c\u6574\u4f53\u6d41\u7a0b\u5904\u7406\uff1aGhostscript\uff0c\u5b83\u5904\u7406\u5404\u79cdPDF\u548c\u56fe\u50cf\u4e4b\u95f4\u7684\u8f6c\u6362\uff08\u6700\u521d\u662f\u4f5c\u4e3aPostscript\u7684\u89e3\u91ca\u5668\u800c\u521b\u5efa\u7684\uff0cPostscript\u662fPDF\u7684\u524d\u8eab\u6280\u672f\uff09\uff1bTesseract\uff0c\u4e00\u4e2a\u5f00\u6e90OCR\u5f15\u64ce\uff0c\u4e0eGhostscript\u4e00\u6837\uff0c\u81ea1980\u5e74\u4ee3\u4ee5\u6765\u4e00\u76f4\u5728\u4e0d\u65ad\u53d1\u5c55\uff1b\u4ee5\u53caPDFtk\uff0c\u4e00\u4e2a\u7528\u4e8e\u4ece\u5355\u4e2a\u9875\u9762\u5207\u7247\u6216\u91cd\u5efaPDF\u7684\u8f83\u5c0f\u5b9e\u7528\u5de5\u5177\u3002<\/p>\n<p>\u8fd9\u4e09\u4e2a\u5e94\u7528\u7a0b\u5e8f\u90fd\u53ef\u4ee5\u5728Ubuntu\u7684\u9ed8\u8ba4\u4ed3\u5e93\u4e2d\u627e\u5230\uff0c\u5e76\u4e14\u53ef\u4ee5\u901a\u8fc7apt\u5305\u7ba1\u7406\u5668\u8fdb\u884c\u5b89\u88c5\u3002\u4f7f\u7528<code>apt update<\/code>\u66f4\u65b0\u8f6f\u4ef6\u6e90\uff0c\u7136\u540e\u4f7f\u7528<code>apt install<\/code>\u6765\u5b89\u88c5\u5b83\u4eec\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">sudo apt update<\/li>\n<li data-prefix=\"$\">sudo apt install pdftk ghostscript tesseract-ocr x11-utils<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u60a8\u73b0\u5728\u5e94\u8be5\u6709\u4e09\u4e2a\u65b0\u7684\u547d\u4ee4\u5b58\u5728\uff0c\u6bcf\u4e2a\u547d\u4ee4\u5bf9\u5e94\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528<code>which<\/code>\u547d\u4ee4\u8fdb\u884c\u9a8c\u8bc1\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">which pdftk<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\/usr\/bin\/pdftk<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">which gs<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\/usr\/bin\/gs<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">which tesseract<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\/usr\/bin\/tesseract<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u4e0b\u4e00\u6b65\u4e2d\uff0c\u60a8\u5c06\u4f7f\u7528\u8fd9\u4e9b\u547d\u4ee4\u6765\u6267\u884cOCR\u64cd\u4f5c\u3002<\/p>\n<h2>\u7b2c\u4e8c\u6b65 &#8211; \u5c06PDF\u8f6c\u6362\u4e3a\u56fe\u50cf\u5e76\u8fd0\u884cTesseract<\/h2>\n<p>\u5982\u679c\u60a8\u8fd8\u6ca1\u6709\u9700\u8981\u8fdb\u884cOCR\u7684PDF\u6587\u4ef6\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u4e0b\u8f7d\u8fd9\u4e2a\u6837\u672cPDF\u6587\u4ef6\u6765\u8ddf\u968f\u672c\u6559\u7a0b\uff0c\u8be5\u6587\u4ef6\u662f\u6ca1\u6709\u4efb\u4f55\u5d4c\u5165\u6587\u672c\u7684\u626b\u63cf\u6587\u4ef6\u3002\u8981\u5c06PDF\u6587\u4ef6\u4e0b\u8f7d\u5230\u60a8\u7684\u670d\u52a1\u5668\u4e0a\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u5e26\u6709<code>-O<\/code>\u6807\u8bb0\u7684<code>curl<\/code>\u547d\u4ee4\uff0c\u5c06\u5176\u4fdd\u5b58\u5728\u5f53\u524d\u76ee\u5f55\u4e0b\u5e76\u4f7f\u7528\u76f8\u540c\u7684\u6587\u4ef6\u540d\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">curl -O https:\/\/deved-images.nyc3.cdn.digitaloceanspaces.com\/server-ocr\/OCR-sample-paper.pdf<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u4f7f\u7528\u4e00\u4e2a\u6216\u591a\u4e2aPDF\u6587\u4ef6\uff0c\u60a8\u9700\u8981\u5c06\u5b83\u4eec\u8f6c\u6362\u4e3a\u5355\u72ec\u7684\u56fe\u50cf\uff0c\u624d\u80fd\u7528\u4f5cOCR\u7684\u6e90\u6587\u4ef6\u3002\u8fd9\u53ef\u4ee5\u4f7f\u7528Ghostscript\u547d\u4ee4\u6765\u5b8c\u6210\u3002\u60a8\u9700\u8981\u6dfb\u52a0\u989d\u5916\u7684\u53c2\u6570\u6765\u4fdd\u6301DPI\u3001\u989c\u8272\u7a7a\u95f4\u548c\u5c3a\u5bf8\u7684\u4e00\u81f4\u6027\u3002\u9996\u5148\uff0c\u4e3a\u6b64\u8fc7\u7a0b\u521b\u5efa\u4e00\u4e2a\u5de5\u4f5c\u8f93\u51fa\u76ee\u5f55\uff0c\u7136\u540e\u8fd0\u884c<code>gs<\/code>\u547d\u4ee4\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">mkdir output<\/li>\n<li data-prefix=\"$\">gs -o output\/%05d.png -sDEVICE=png16m -r300 -dPDFFitPage=true <mark>OCR-sample-paper.pdf<\/mark><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8fd9\u4e2a<code>gs<\/code>\u547d\u4ee4\u5728\u5176\u4ed6\u547d\u4ee4\u4e4b\u524d\u4f7f\u7528\u4e86<code>-o<\/code>\u6807\u5fd7\u6765\u6307\u5b9a\u8f93\u51fa\u8def\u5f84\u3002<code>%05d<\/code>\u662fGhostscript\u80fd\u591f\u672c\u5730\u7406\u89e3\u7684\u6666\u6da9\u7684Shell\u8bed\u6cd5\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0b\u5b83\u8868\u793a\u4f7f\u7528\u81ea\u52a8\u9012\u589e\u76845\u4f4d\u6570\u5b57\u4e3a\u8f93\u5165\u7684PDF\u6587\u4ef6\u547d\u540d\u8f93\u51fa\u7684PNG\u6587\u4ef6\u3002\u60a8\u53ef\u80fd\u5728\u5176\u4ed6\u65e7\u7684\u547d\u4ee4\u884c\u5e94\u7528\u7a0b\u5e8f\u4e2d\u770b\u5230\u8fd9\u79cd\u4f7f\u7528\u65b9\u6cd5\u3002\u5728\u6dfb\u52a0\u4e00\u4e9bPNG\u683c\u5f0f\u5316\u8bed\u6cd5\u548c\u4e00\u4e2aDPI\u503c\u4e3a<code>-r300<\/code>\u4e4b\u540e\uff0c\u63d0\u4f9b<code>OCR-sample-paper.pdf<\/code>\u6216\u60a8\u9009\u62e9\u7684\u8f93\u5165\u6587\u4ef6\u7684\u8def\u5f84\u3002<\/p>\n<p>Ghostscript\u4f1a\u5c06PDF\u4e2d\u7684\u6bcf\u4e00\u9875\u5355\u72ec\u8f93\u51fa\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>Processing pages 1 through 14. Page 1 Page 2 Page 3 Page 4 Page 5 \u2026<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728\u5b8c\u6210\u540e\uff0c\u60a8\u53ef\u4ee5\u9a8c\u8bc1\u8f93\u51fa\u76ee\u5f55\u7684\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">ls output<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5bf9PDF\u548c\u56fe\u50cf\u6267\u884c\u670d\u52a1\u5668\u7aefOCR\u300b\u7684\u7b2c2\u90e8\u5206\uff08\u51714\u90e8\u5206\uff09\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u4f60\u5c06\u4f7f\u7528\u4e00\u4e2ashell\u5faa\u73af\u6765\u56f4\u7ed5\u4e00\u4e2aTesseract\u547d\u4ee4\uff0c\u5c06\u4f60\u521b\u5efa\u7684\u56fe\u50cf\u8f6c\u6362\u56de\u5355\u72ec\u7684PDF\u9875\u9762\uff0c\u8fd9\u6b21\u5305\u542b\u5d4c\u5165\u5f0f\u6587\u672c\u3002Shell\u5faa\u73af\u4e0e\u5176\u4ed6\u7f16\u7a0b\u8bed\u8a00\u4e2d\u7684\u5faa\u73af\u884c\u4e3a\u7c7b\u4f3c\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5206\u53f7\u5c06\u6bcf\u4e2a\u90e8\u5206\u5206\u9694\u5f00\u6765\u5c06\u5b83\u4eec\u683c\u5f0f\u5316\u4e3a\u4e00\u4e2a\u5355\u4e00\u7684\u547d\u4ee4\uff0c\u6700\u540e\u4ee5<code>done<\/code>\u7ed3\u675f\u3002<\/p>\n<pre><code class=\"language-bash\">for png in $(ls output); do tesseract -l eng output\/$png output\/$(echo $png | sed -e \"s\/\\.png\/\/g\") pdf; done<\/code><\/pre>\n<p>\u5728\u547d\u4ee4\u5faa\u73af\u671f\u95f4\uff0c\u4e00\u4e9b\u6587\u672c\u5c06\u88ab\u8f93\u51fa\u5230\u4f60\u7684\u7ec8\u7aef\u3002<\/p>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre><code>Tesseract Open Source OCR Engine v4.1.1 with Leptonica\r\nTesseract Open Source OCR Engine v4.1.1 with Leptonica\r\nTesseract Open Source OCR Engine v4.1.1 with Leptonica\r\nTesseract Open Source OCR Engine v4.1.1 with Leptonica\r\n...<\/code><\/pre>\n<p>Tesseract\u8bed\u6cd5\u672c\u8eab\u5c31\u662f\u8fd9\u4e2a\u7ec4\u4ef6\uff1a<code>tesseract -l \u8bed\u8a00 \u8f93\u5165\u6587\u4ef6\u540d \u8f93\u51fa\u57fa\u7840\u6587\u4ef6\u540d [pdf]<\/code>\u3002\u5982\u679c\u7701\u7565<code>-l \u8bed\u8a00<\/code>\u7ec4\u4ef6\uff0cTesseract\u9ed8\u8ba4\u4f7f\u7528\u82f1\u8bed\u8bed\u8a00\u6a21\u578b\uff1b\u5982\u679c\u7701\u7565<code>pdf<\/code>\uff0cTesseract\u5c06\u628a\u8bc6\u522b\u51fa\u7684\u6587\u672c\u4f5c\u4e3a\u4e0e\u8f93\u5165\u56fe\u50cf\u5206\u5f00\u7684\u6587\u4ef6\u8f93\u51fa\uff0c\u800c\u4e0d\u662f\u4ee5PDF\u683c\u5f0f\u8f93\u51fa\u3002\u6b64\u547d\u4ee4\u4e2d\u6dfb\u52a0\u7684\u989d\u5916<code>sed<\/code>\u8bed\u6cd5\u786e\u4fdd\u5411Tesseract\u63d0\u4f9b\u6b63\u786e\u7684\u8def\u5f84\uff0c\u5e76\u5728\u5c06\u8f93\u51fa\u6587\u4ef6\u540d\u66f4\u6539\u4e3a<code>.pdf<\/code>\u65f6\u5220\u9664<code>.png<\/code>\u6587\u4ef6\u6269\u5c55\u540d\u3002<\/p>\n<div class=\"post-conf-note\">\n<p class=\"post-conf-desc\">\u6ce8\u610f\uff1a\u5728Ubuntu\u4e0a\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0bTesseract\u4e0d\u4f1a\u5b89\u88c5\u6240\u6709\u8bed\u8a00\u6a21\u578b\u3002\u5982\u679c\u60a8\u9700\u8981\u8fdb\u884c\u975e\u82f1\u8bed\u5149\u5b66\u5b57\u7b26\u8bc6\u522b\uff0c\u8bf7\u4f7f\u7528<code>sudo apt install tesseract-ocr-all<\/code>\u5b89\u88c5<code>tesseract-ocr-all<\/code>\u8f6f\u4ef6\u5305\u3002\u60a8\u53ef\u4ee5\u5728<a href=\"#\">\u5b98\u65b9\u6587\u6863<\/a>\u4e2d\u627e\u5230\u66f4\u591a\u5173\u4e8eTesseract\u547d\u4ee4\u884c\u7528\u6cd5\u7684\u793a\u4f8b\u3002<\/p>\n<\/div>\n<p>\u5728\u8fd0\u884cTesseract\u540e\u518d\u6b21\u68c0\u67e5\u8f93\u51fa\u76ee\u5f55\u3002<\/p>\n<pre><code class=\"language-bash\">ls output<\/code><\/pre>\n<p>\u4f60\u5c06\u770b\u5230\u4f60\u65b0\u521b\u5efa\u7684\u6240\u6709PDF\u9875\u9762\u3002<\/p>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre><code>00001.pdf 00003.pdf 00005.pdf 00007.pdf 00009.pdf 00011.pdf 00013.pdf\r\n00001.png 00003.png 00005.png 00007.png 00009.png 00011.png 00013.png\r\n00002.pdf 00004.pdf 00006.pdf 00008.pdf 00010.pdf 00012.pdf 00014.pdf\r\n00002.png 00004.png 00006.png 00008.png 00010.png 00012.png 00014.png<\/code><\/pre>\n<p>\u5982\u679c\u4f60\u53ea\u9700\u8981\u4e00\u4e2a\u8f93\u51fa\u56fe\u50cf\uff0c\u53ef\u4ee5\u76f4\u63a5\u8df3\u5230\u672c\u6559\u7a0b\u7684\u6700\u540e\u6b65\u9aa4\uff0c\u8be6\u7ec6\u4e86\u89e3\u6279\u91cf\u6587\u672c\u63d0\u53d6\u9009\u9879\u3002\u5982\u679c\u4f60\u6b63\u5728\u4f7f\u7528PDF\u6587\u4ef6\uff0c\u4f60\u5c06\u5728\u4e0b\u4e00\u6b65\u8fdb\u884c\u91cd\u5efa\u548c\u6700\u7ec8\u5904\u7406\u3002<\/p>\n<h2>\u7b2c\u4e09\u6b65\uff08\u53ef\u9009\uff09-\u4ece\u56fe\u50cf\u8f93\u51fa\u8fdb\u884cPDF\u91cd\u5efa<\/h2>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5bf9PDF\u548c\u56fe\u50cf\u6267\u884c\u670d\u52a1\u5668\u7aefOCR\u300b\u7684\u7b2c3\u90e8\u5206\uff08\u51714\u90e8\u5206\uff09\u3002<\/p>\n<p><strong>\u5185\u5bb9\u7247\u6bb5\uff1a<\/strong>\u5982\u679c\u4f60\u5728\u4e0a\u4e00\u6b65\u4f7f\u7528\u4e86PDF\u4f5c\u4e3a\u8f93\u5165\uff0c\u73b0\u5728\u4f60\u9700\u8981\u518d\u6b21\u4f7f\u7528PDFtk\u548cGhostscript\u6765\u5c06Tesseract\u751f\u6210\u7684\u5355\u4e2a\u9875\u9762\u91cd\u65b0\u7ec4\u5408\u8d77\u6765\u3002\u56e0\u4e3a\u5b83\u4eec\u662f\u6309\u987a\u5e8f\u7f16\u53f7\u7684\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528shell\u8bed\u6cd5\u5c06\u6587\u4ef6\u7684\u6709\u5e8f\u5217\u8868\u4f20\u9012\u7ed9<code>pdftk cat<\/code>\u547d\u4ee4\uff0c\u8fdb\u884c\u62fc\u63a5\uff1a<\/p>\n<pre class=\"post-pre\"><code>pdftk output\/*.pdf cat output joined.pdf<\/code><\/pre>\n<p>\u60a8\u73b0\u5728\u6709\u4e00\u4e2a\u7531Tesseract\u8f93\u51fa\u91cd\u65b0\u6784\u5efa\u7684PDF\u6587\u6863\uff0c\u540d\u4e3a<code>joined.pdf<\/code>\u3002\u552f\u4e00\u5269\u4e0b\u7684\u6b65\u9aa4\u662f\u4f7f\u7528Ghostscript\u91cd\u65b0\u683c\u5f0f\u5316\u8be5PDF\u6587\u6863\u3002\u8fd9\u4e00\u6b65\u9aa4\u5f88\u91cd\u8981\uff0c\u56e0\u4e3aTesseract\u5e76\u4e0d\u603b\u662f\u51c6\u786e\u5730\u4fdd\u6301PDF\u7684\u5c3a\u5bf8\u3002\u60a8\u7684\u65b0PDF\u6587\u6863\u5f53\u524d\u6bd4\u8f93\u5165\u6587\u4ef6\u8981\u5927\u5f97\u591a\uff0c\u56e0\u4e3a\u5b83\u8fd8\u672a\u7ecf\u8fc7\u4f18\u5316\uff0c\u800cGhostscript\u5219\u662f\u4e00\u4e2a\u66f4\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u7cbe\u786e\u91cd\u65b0\u5448\u73b0PDF\u7684\u89c4\u683c\u3002\u5728<code>joined.pdf<\/code>\u4e0a\u6267\u884c\u6700\u540e\u4e00\u4e2a<code>gs<\/code>\u547d\u4ee4\u5373\u53ef\u3002<\/p>\n<pre class=\"post-pre\"><code>gs -sDEVICE=pdfwrite -sPAPERSIZE=letter -dFIXEDMEDIA -dPDFFitPage -o <mark>final.pdf<\/mark> joined.pdf<\/code><\/pre>\n<p>\u60a8\u53ef\u80fd\u4f1a\u4ece\u8fd9\u4e2a\u547d\u4ee4\u4e2d\u6536\u5230\u4e00\u4e9b\u5173\u4e8ePDF\u89c4\u8303\u7b26\u5408\u6027\u7684\u8b66\u544a\u8f93\u51fa\uff0c\u8fd9\u662f\u6b63\u5e38\u7684\u3002Ghostscript\u5bf9\u4e8ePDF\u6807\u51c6\u7684\u8981\u6c42\u6bd4\u5176\u4ed6\u5de5\u5177\u66f4\u4e25\u683c\uff0c\u5927\u591a\u6570PDF\u6587\u4ef6\u53ef\u4ee5\u5728\u5927\u591a\u6570\u67e5\u770b\u5668\u4e2d\u6b63\u786e\u663e\u793a\u3002<\/p>\n<p>\u4ee5\u4e0b\u53c2\u6570<code>-sDEVICE=pdfwrite<\/code>\u3001<code>-sPAPERSIZE=letter<\/code>\u3001<code>-dFIXEDMEDIA<\/code>\u3001<code>-dPDFFitPage<\/code>\u5747\u7528\u4e8e\u5f3a\u5236PDF\u5c3a\u5bf8\u3002\u5982\u679c\u4f7f\u7528\u4e0d\u540c\u7684\u9875\u9762\u683c\u5f0f\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u66f4\u6539<code>sPAPERSIZE=letter<\/code>\u3002\u63d0\u4f9b\u7ed9<code>gs<\/code>\u547d\u4ee4\u7684<code>-o final.pdf<\/code>\u6587\u4ef6\u540d\u5c06\u662f\u60a8\u6700\u7ec8\u8f93\u51fa\u7684\u540d\u79f0\u3002<\/p>\n<p>\u4e3a\u4e86\u6d4b\u8bd5OCR\u662f\u5426\u6210\u529f\uff0c\u60a8\u53ef\u4ee5\u5728\u684c\u9762\u5e94\u7528\u7a0b\u5e8f\u4e2d\u672c\u5730\u6253\u5f00PDF\uff0c\u6216\u8005\u60a8\u53ef\u4ee5\u4f7f\u7528\u7c7b\u4f3c<code>pdftotext<\/code>\u7684\u547d\u4ee4\u884c\u5e94\u7528\u7a0b\u5e8f\u5c06\u6587\u6863\u4e2d\u73b0\u5728\u5d4c\u5165\u7684\u6587\u672c\u63d0\u53d6\u51fa\u6765\u3002<\/p>\n<p>\u4f60\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2a\u53eb\u505a<code>poppler-utils<\/code>\u7684\u8f6f\u4ef6\u5305\u5728Ubuntu\u4e0a\u5b89\u88c5<code>pdftotext<\/code>\uff0c\u8be5\u8f6f\u4ef6\u5305\u5305\u542b\u591a\u4e2a\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u7528\u4e8e\u5904\u7406PDF\u6587\u6863\u3002<\/p>\n<pre class=\"post-pre\"><code>sudo apt install poppler-utils<\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u5728\u4f60\u7684\u65b0PDF\u4e0a\u8fd0\u884c<code>pdftotext<\/code>\u3002<\/p>\n<pre class=\"post-pre\"><code>pdftotext final.pdf<\/code><\/pre>\n<p>\u5c06\u521b\u5efa\u4e00\u4e2a\u65b0\u6587\u4ef6<code>final.txt<\/code>\u3002\u53ef\u4ee5\u4f7f\u7528\u50cf<code>head<\/code>\u8fd9\u6837\u7684\u5de5\u5177\u9884\u89c8\u8be5\u6587\u4ef6\u7684\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code>head final.txt<\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code>Pakistan Journal of Applied Economics (1983) vol. II, no. 2 (167\u2014180) THE MEASUREMENT OF FARM-SPECIFIC TECHNICAL EFFICIENCY K. P. KALIRAJAN and J. C, FLINN* Measures of technical efficiency were estimated using a stochastic translog production frontier for a sample of rainfed rice farmers in Bicol, Philippines. These estimates were farm specific as opposed to being based on deviations from an average sample efficiency. A wide variation in the level of technical<\/code><\/pre>\n<p>\u4f60\u5e94\u8be5\u4ece\u8f93\u5165\u6587\u4ef6\u4e2d\u83b7\u53d6\u4e00\u4e32\u6587\u672c\u3002\u5b83\u53ef\u80fd\u662f\u65e0\u5e8f\u7684\u6216\u5305\u542b\u4e00\u4e9b\u5947\u602a\u7684\u683c\u5f0f\u5b57\u7b26\uff0c\u4f46\u5f53\u4e00\u6b21\u6027\u503e\u5012\u51fa\u6240\u6709\u6587\u672c\u65f6\u662f\u6b63\u5e38\u7684\u2014\u2014\u91cd\u8981\u7684\u662f\uff0c\u8be5\u6587\u6863\u73b0\u5728\u5305\u542b\u4e86\u5d4c\u5165\u7684\u6587\u672c\u3002\u6b64\u65f6\uff0c\u4f60\u53ef\u4ee5\u5220\u9664\u5305\u542b\u5de5\u4f5c\u8fdb\u5c55\u56fe\u50cf\u548cPDF\u9875\u9762\u7684\u8f93\u51fa\u76ee\u5f55\u3002\u8fd9\u4e9b\u56fe\u50cf\u4e0d\u518d\u9700\u8981\u4e86\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e09\u4e2a\u5de5\u5177\u548c\u56db\u4e2a\u547d\u4ee4\u6765\u6784\u5efa\u4e00\u4e2a\u5b8c\u6574\u7684PDF OCR\u6d41\u7a0b\u3002\u8fd9\u4e9b\u5de5\u5177\u53ef\u4ee5\u7ec4\u5408\u6210\u4e00\u4e2a\u72ec\u7acb\u7684\u811a\u672c\uff0c\u96c6\u6210\u5230\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u6216\u6309\u9700\u8fdb\u884c\u4ea4\u4e92\u5f0f\u8fd0\u884c\u3002\u8fd9\u662f\u5904\u7406\u5355\u4e2aPDF\u6587\u6863\u7684\u5b8c\u6574\u89e3\u51b3\u65b9\u6848\u3002\u63a5\u4e0b\u6765\uff0c\u60a8\u5c06\u4e86\u89e3\u4e00\u4e9b\u683c\u5f0f\u5316\u6570\u636e\u8868\u548c\u6279\u91cf\u6587\u672c\u63d0\u53d6\u7684\u5176\u4ed6\u9009\u9879\u3002<\/p>\n<h2>\u7b2c\u56db\u6b65\uff08\u53ef\u9009\uff09- \u4eceOCR\u6587\u6863\u4e2d\u63d0\u53d6CSV\u8868\u683c<\/h2>\n<p>\u5728\u5bf9\u56fe\u50cf\u6216PDF\u8fdb\u884cOCR\u4e4b\u540e\uff0c\u60a8\u8fd8\u53ef\u4ee5\u9009\u62e9\u5c06\u4efb\u4f55\u8868\u683c\u6216\u7535\u5b50\u8868\u683c\u683c\u5f0f\u7684\u6570\u636e\u63d0\u53d6\u5230CSV\u6587\u4ef6\u4e2d\u3002\u5f53\u5904\u7406\u65e7\u6570\u636e\u6e90\u6216\u79d1\u5b66\u8bba\u6587\u65f6\uff0c\u8fd9\u53ef\u80fd\u7279\u522b\u6709\u7528\u3002<\/p>\n<p>\u6709\u4e24\u79cd\u5de5\u5177\u53ef\u4ee5\u63d0\u4f9b\u8fd9\u4e2a\u529f\u80fd\uff0c\u5b83\u4eec\u7684\u8868\u73b0\u90fd\u76f8\u4f3c\uff1aJava\u7f16\u5199\u7684Tabula\u548cPython\u7f16\u5199\u7684Camelot\u3002<\/p>\n<h3>Tabula<\/h3>\n<p>\u5728Ubuntu\u4e0a\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528snap\u5b89\u88c5\u5de5\u5177\u5c06Tabula\u4f5c\u4e3a\u4e00\u4e2asnap\u8f6f\u4ef6\u5305\u8fdb\u884c\u5b89\u88c5\u3002<\/p>\n<pre class=\"post-pre\"><code>sudo snap install tabula<\/code><\/pre>\n<p>\u5982\u679c\u4f60\u5728\u8fd9\u4e2a\u6559\u7a0b\u4e2d\u68c0\u67e5\u6837\u672cPDF\u7684\u89c6\u89c9\u6548\u679c\uff0c\u4f60\u4f1a\u53d1\u73b0\u5728\u7b2c6\u9875\u4e2d\u95f4\u6709\u4e00\u5f20\u8868\u683c\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/6564603ca4b2f92e6c724202\/66-0.png\" alt=\"\u8868\u683c\u683c\u5f0f\u6587\u672c\u793a\u4f8b\" \/><\/div>\n<p>\u56e0\u6b64\uff0c\u60a8\u5c06\u901a\u8fc7\u5728<code>final.pdf<\/code>\u4e2d\u6307\u5b9a\u8981\u63d0\u53d6\u7684\u8868\u683c\u5728<code>-p 6<\/code>\u4e0a\u8fd0\u884c<code>tabula<\/code>\uff0c\u5e76\u5c06\u8f93\u51fa\u91cd\u5b9a\u5411\u5230\u4e00\u4e2a\u540d\u4e3a<code>test.csv<\/code>\u7684\u65b0\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code>tabula -p 6 final.pdf &gt; test.csv<\/code><\/pre>\n<p>\u68c0\u67e5<code>test.csv<\/code>\u4e2d\u5bf9\u8868\u683c\u68c0\u6d4b\u7684\u8d28\u91cf\u3002\u73b0\u5728\u4f60\u53ef\u4ee5\u5c06\u5176\u4f5c\u4e3a\u8f93\u5165\uff0c\u7528\u4e8e\u7c7b\u4f3cExcel\u8fd9\u6837\u7684\u7535\u5b50\u8868\u683c\u7a0b\u5e8f\uff0c\u6216\u53e6\u4e00\u4e2a\u6570\u636e\u5206\u6790\u811a\u672c\u3002<\/p>\n<h3>Camelot<\/h3>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5bf9PDF\u548c\u56fe\u50cf\u6267\u884c\u670d\u52a1\u5668\u7aefOCR\u300b\u7684\u7b2c4\u90e8\u5206\uff08\u51714\u90e8\u5206\uff09\u3002<\/p>\n<p>Camelot\u662f\u4e00\u4e2aPython\u5e93\uff0c\u9700\u8981\u60a8\u5df2\u7ecf\u5b89\u88c5\u4e86Python\u548cpip\uff08Python\u5305\u7ba1\u7406\u5668\uff09\u3002\u5982\u679c\u60a8\u8fd8\u6ca1\u6709\u5b89\u88c5Python\uff0c\u53ef\u4ee5\u53c2\u8003\u300a\u5982\u4f55\u5728Ubuntu 22.04\u670d\u52a1\u5668\u4e0a\u5b89\u88c5Python 3\u5e76\u8bbe\u7f6e\u7f16\u7a0b\u73af\u5883\u300b\u7684\u7b2c\u4e00\u6b65\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u4f7f\u7528<code>pip install<\/code>\u547d\u4ee4\u5b89\u88c5Camelot\uff0c\u540c\u65f6\u5b89\u88c5\u5176<code>opencv<\/code>\u4f9d\u8d56\u5e93\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"token function\">sudo<\/span> pip <span class=\"token function\">install<\/span> camelot-py opencv-python-headless ghostscript<\/code><\/pre>\n<p>\u5728\u6b64\u4e4b\u540e\uff0c\u60a8\u53ef\u4ee5\u518d\u6b21\u8fd0\u884cCamelot\u5904\u7406PDF\uff0c\u6307\u5b9a\u9875\u7801<code>-p 6<\/code>\uff0c\u8f93\u51fa\u8def\u5f84\u548c\u6587\u4ef6\u7c7b\u578b\uff0c\u4ee5\u53ca\u8f93\u5165\u6587\u4ef6<code>final.pdf<\/code>\uff1a<\/p>\n<pre class=\"post-pre\"><code>camelot <span class=\"token parameter variable\">-p<\/span> <span class=\"token number\">6<\/span> <span class=\"token parameter variable\">-f<\/span> csv <span class=\"token parameter variable\">-o<\/span> test.csv stream final.pdf<\/code><\/pre>\n<p>\u5982\u679c\u9700\u8981\uff0c\u60a8\u53ef\u4ee5\u53c2\u8003Camelot\u6587\u6863\u5bf9\u63d0\u53d6\u7ed3\u679c\u8fdb\u884c\u5fae\u8c03\u3002<\/p>\n<p>\u5728\u672c\u6559\u7a0b\u7684\u6700\u540e\u4e00\u4e2a\u53ef\u9009\u6b65\u9aa4\u4e2d\uff0c\u60a8\u5c06\u56de\u987e\u4e00\u4e9b\u5176\u4ed6OCR\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<h2>\u7b2c\u4e94\u6b65\uff08\u53ef\u9009\uff09- \u4f7f\u7528\u5176\u4ed6OCR\u89e3\u51b3\u65b9\u6848\u8fdb\u884c\u6279\u91cf\u63d0\u53d6<\/h2>\n<p>\u5c3d\u7ba1Tesseract\u662f\u53d1\u5c55\u6700\u4e45\u7684\u5f00\u6e90OCR\u5de5\u5177\uff0c\u652f\u6301\u6700\u5e7f\u6cdb\u7684\u8f93\u51fa\u683c\u5f0f\uff0c\u4f46\u8fd8\u6709\u4e00\u4e9b\u5176\u4ed6\u9009\u9879\u53ef\u7528\u4e8e\u6267\u884c\u670d\u52a1\u5668\u7aefOCR\u3002EasyOCR\u662f\u4e00\u4e2a\u8f83\u65b0\u7684\u5f00\u6e90OCR\u5f15\u64ce\uff0c\u6b63\u5728\u79ef\u6781\u5f00\u53d1\u4e2d\uff0c\u5e76\u4e14\u901a\u8fc7\u5728GPU\u4e0a\u8fd0\u884c\u53ef\u4ee5\u63d0\u4f9b\u66f4\u5feb\u6216\u66f4\u51c6\u786e\u7684\u7ed3\u679c\u3002\u7136\u800c\uff0cEasyOCR\u4e0d\u652f\u6301PDF\u8f93\u51fa\uff0c\u8fd9\u4f7f\u5f97\u91cd\u6784\u8f93\u5165\u6587\u6863\u53d8\u5f97\u56f0\u96be\uff0c\u5e76\u4e14\u4e3b\u8981\u7528\u4e8e\u8f93\u51fa\u5927\u91cf\u7684\u539f\u59cb\u6587\u672c\u3002<\/p>\n<p>EasyOCR\u662f\u4e00\u4e2aPython\u5e93\uff0c\u9700\u8981\u60a8\u5df2\u7ecf\u5b89\u88c5\u4e86Python\u548cpip\uff08Python\u7684\u5305\u7ba1\u7406\u5668\uff09\u3002\u5982\u679c\u60a8\u5c1a\u672a\u5b89\u88c5Python\uff0c\u53ef\u4ee5\u53c2\u8003\u300a\u5982\u4f55\u5728Ubuntu 22.04\u670d\u52a1\u5668\u4e0a\u5b89\u88c5Python 3\u5e76\u8bbe\u7f6e\u7f16\u7a0b\u73af\u5883\u300b\u4e2d\u7684\u7b2c\u4e00\u6b65\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u4f7f\u7528<code>pip install<\/code>\u547d\u4ee4\u5b89\u88c5EasyOCR\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"token function\">sudo<\/span> pip <span class=\"token function\">install<\/span> easyocr<\/code><\/pre>\n<p>\u5728\u5b89\u88c5EasyOCR\u4e4b\u540e\uff0c\u60a8\u53ef\u4ee5\u5c06\u5176\u4f5c\u4e3aPython\u811a\u672c\u4e2d\u7684\u5e93\u4f7f\u7528\uff0c\u6216\u8005\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7\u4f7f\u7528<code>easyocr<\/code>\u547d\u4ee4\u5728\u547d\u4ee4\u884c\u4e2d\u8c03\u7528\u5b83\u3002\u4e00\u4e2a\u793a\u4f8b\u7684EasyOCR\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n<pre class=\"post-pre\"><code>easyocr <span class=\"token parameter variable\">-l<\/span> ch_sim en <span class=\"token parameter variable\">-f<\/span> <mark>image.jpg<\/mark> <span class=\"token parameter variable\">--detail<\/span><span class=\"token operator\">=<\/span><span class=\"token number\">1<\/span> <mark><span class=\"token parameter variable\">--gpu<\/span><span class=\"token operator\">=<\/span>True<\/mark><\/code><\/pre>\n<p>EasyOCR\u652f\u6301\u540c\u65f6\u52a0\u8f7d\u591a\u4e2a\u8bed\u8a00\u6a21\u578b\u4ee5\u8fdb\u884c\u591a\u8bed\u8a00OCR\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528<code>-l<\/code>\u6807\u5fd7\u6307\u5b9a\u591a\u79cd\u8bed\u8a00\uff0c\u4f8b\u5982\u7528<code>ch_sim<\/code>\u8868\u793a\u7b80\u4f53\u4e2d\u6587\uff0c<code>en<\/code>\u8868\u793a\u82f1\u6587\u3002<code>-f image.jpg<\/code>\u662f\u60a8\u8f93\u5165\u6587\u4ef6\u7684\u8def\u5f84\u3002\u5982\u679c\u60a8\u9700\u8981\u53c2\u8003\u6587\u4ef6\u4e2d\u63d0\u53d6\u6587\u672c\u7684\u4f4d\u7f6e\uff0c<code>--detail=1<\/code>\u5c06\u63d0\u4f9b\u8fb9\u754c\u6846\u5750\u6807\u4e0e\u8f93\u51fa\u4e00\u8d77\u3002\u60a8\u4e5f\u53ef\u4ee5\u4f7f\u7528<code>--detail=0<\/code>\u7701\u7565\u6b64\u4fe1\u606f\u3002<\/p>\n<p>\u5982\u679c\u5df2\u7ecf\u914d\u7f6e\u4e86GPU\u73af\u5883\uff0c\u53ef\u4ee5\u9009\u62e9\u6027\u5730\u4f7f\u7528<code>--gpu=True<\/code>\u6807\u5fd7\uff0c\u5e76\u5c1d\u8bd5\u4f7f\u7528CUDA\u4ee3\u7801\u8def\u5f84\u8fdb\u884c\u66f4\u9ad8\u6548\u7684\u63d0\u53d6\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u60a8\u4f7f\u7528\u4e86\u51e0\u4e2a\u6210\u719f\u7684\u5f00\u6e90\u5de5\u5177\u521b\u5efa\u4e86\u4e00\u4e2aOCR\u6d41\u7a0b\uff0c\u53ef\u4ee5\u5c06\u5176\u5e94\u7528\u4e8e\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u5806\u6808\u4e2d\u6216\u901a\u8fc7\u7f51\u7edc\u670d\u52a1\u516c\u5f00\u3002\u60a8\u8fd8\u56de\u987e\u4e86\u4e00\u4e9b\u7528\u4e8e\u5fae\u8c03\u7684\u5de5\u5177\u8bed\u6cd5\u548c\u9009\u9879\uff0c\u5e76\u8003\u8651\u4e86\u4e00\u4e9b\u5176\u4ed6OCR\u9009\u9879\uff0c\u7528\u4e8e\u63d0\u53d6CSV\u8868\u683c\u4ee5\u53ca\u8fd0\u884c\u5927\u89c4\u6a21\u7684\u6587\u672c\u6279\u91cf\u63d0\u53d6\u3002<\/p>\n<p>OCR\uff08\u5149\u5b66\u5b57\u7b26\u8bc6\u522b\uff09\u662f\u4e00\u9879\u88ab\u5e7f\u6cdb\u7406\u89e3\u548c\u4f7f\u7528\u7684\u6280\u672f\uff1a\u60a8\u77e5\u9053\u4f55\u65f6\u9700\u8981\u5b83\u3002\u5c3d\u7ba1\u5982\u6b64\uff0c\u73b0\u6210\u7684OCR\u5b9e\u73b0\u901a\u5e38\u4ec5\u9650\u4e8e\u4ed8\u8d39\u7684\u684c\u9762\u8f6f\u4ef6\u3002\u80fd\u591f\u5728\u9700\u8981\u7684\u4efb\u4f55\u5730\u65b9\u90e8\u7f72OCR\u5de5\u5177\u53ef\u80fd\u975e\u5e38\u6709\u7528\u3002\u63a5\u4e0b\u6765\uff0c\u60a8\u53ef\u80fd\u60f3\u9605\u8bfb\u300a\u673a\u5668\u5b66\u4e60\u7b80\u4ecb\u300b\u4ee5\u590d\u4e60\u4e00\u4e9b\u76f8\u5173\u7684\u4e3b\u9898\u9886\u57df\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b80\u4ecb \u5149\u5b66\u5b57\u7b26\u8bc6\u522b\uff08OCR\uff09\u4e3b\u8981\u7528\u4e8e\u5c06\u626b\u63cf\u56fe\u50cf\u4e2d\u7684\u6587\u5b57\u8f6c\u6362\u4e3a\u53ef\u9009\u62e9\u3001\u53ef\u590d\u5236\u3001\u53ef\u7f16\u7801\u548c\u53ef\u5d4c\u5165\u7684\u6587\u672c\u3002\u8bb8\u591a\u73b0\u4ee3\u684c\u9762 [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[534,535,537,533,536],"class_list":["post-106","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-pdf","tag-ocr","tag-537"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u670d\u52a1\u5668\u7aefPDF\u4e0e\u56fe\u50cfOCR\uff1a\u9ad8\u6548\u6587\u672c\u8bc6\u522b\u6307\u5357 - Blog - Silicon Cloud<\/title>\n<meta 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