Tesseract Ocr

Extract text from images using the Tesseract OCR engine directly via command line. Supports multiple languages including Chinese, English, and more. Use this skill when users need to extract text from images, recognize text content in images, or perform OCR tasks without Python dependencies.

Audits

Pass

ClawScanPass

Agentic behavior and permission review.

Static analysisPass

Pattern checks against bundled files.

VirusTotalPass

Multi-engine malware detections and file reputation.

Install

openclaw skills install tesseract-ocr

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:

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

# macOS:
brew install tesseract tesseract-lang

Usage

Basic Usage

# 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

Language	Code
Simplified Chinese	chi_sim
Traditional Chinese	chi_tra
English	eng
Japanese	jpn
Korean	kor
Chinese + English	chi_sim+eng

Quick Examples

# 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

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