Installation

clawhub install whalefell/tesseract-ocr

Summary

Extract text content from images using the Tesseract engine directly via command line.

SKILL.md

Tesseract OCR Skill

Extract text content from images using the Tesseract engine directly via command line.

Features

  • Extract text from image files using native tesseract CLI
  • Support multi-language recognition (Chinese, English, etc.)
  • No Python dependencies required
  • Simple and fast

Dependencies

Install Tesseract OCR system package:

bash
# Ubuntu/Debian:
sudo apt-get install tesseract-ocr tesseract-ocr-chi-sim

# macOS:
brew install tesseract tesseract-lang

Usage

Basic Usage

bash
# Use default language (English)
tesseract /path/to/image.png stdout

# Specify language (Chinese + English)
tesseract /path/to/image.png stdout -l chi_sim+eng

# Save to file
tesseract /path/to/image.png output.txt -l chi_sim+eng

# Multiple languages
tesseract /path/to/image.png stdout -l chi_sim+eng+jpn

Common Language Codes

LanguageCode
Simplified Chinesechi_sim
Traditional Chinesechi_tra
Englisheng
Japanesejpn
Koreankor
Chinese + Englishchi_sim+eng

Quick Examples

bash
# OCR with Chinese support
tesseract image.jpg stdout -l chi_sim

# OCR with mixed Chinese and English
tesseract image.png stdout -l chi_sim+eng

# Save to file instead of stdout
tesseract document.png result -l chi_sim+eng
# Creates result.txt

Notes

  1. OCR accuracy depends on image quality; use clear images for best results
  2. Complex layouts (tables, multi-column) may require post-processing
  3. Chinese recognition requires the tesseract-ocr-chi-sim language pack
  4. Language packs must be installed separately on your system

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