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本地离线 OCR 文字识别，基于 tesseract.js。当用户发图片/截图/扫描件要求提取文字时使用，支持中英文。纯本地运行，无需联网。
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Based on SOC occupation classification
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| name | image-ocr |
| version | 2.0.0 |
| description | 本地离线 OCR 文字识别，基于 tesseract.js。当用户发图片/截图/扫描件要求提取文字时使用，支持中英文。纯本地运行，无需联网。 |
| allowed-tools | read,shell |
| requires | {"npm":["tesseract.js"]} |
| metadata | {"tags":["OCR","Images","Text-Extraction","Screenshots","Documents"]} |
基于 tesseract.js（WASM）的本地离线 OCR，零系统依赖。
语言包（~30MB）首次使用自动从 S3 下载，缓存到本地后离线可用。
当用户提供图片并要求识别其中文字时触发：
node <skill-path>/scripts/ocr.js <image-path>
首次运行会自动下载中英文语言包，约 30MB，只需一次。
# 仅英文
node <skill-path>/scripts/ocr.js <image-path> --lang=eng
# 仅中文
node <skill-path>/scripts/ocr.js <image-path> --lang=chi_sim
# 中英混合（默认）
node <skill-path>/scripts/ocr.js <image-path> --lang=chi_sim+eng
node <skill-path>/scripts/ocr.js <image-path> --json
shell 工具将 PDF 每页转为 PNGnode .../scripts/ocr.js <page-N.png>