leptonica ☆
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Description:
Image processing and image analysis library
Type: Formula  |  Latest Version: 1.86.0@0  |  Tracked Since: Dec 25, 2025
Links: Homepage  |  formulae.brew.sh
Category: Multimedia
Tags: image-processing c-library computer-vision ocr graphics
Install: brew install leptonica
About:
Leptonica is an open-source library containing software for image processing and image analysis. It provides a robust foundation for operations such as thresholding, morphological operations, and color quantization. Its primary value is serving as the underlying engine for OCR systems like Tesseract.
Key Features:
  • Comprehensive image processing operations
  • Supports multiple image file formats
  • Cross-platform C library
  • Integration with Tesseract OCR
Use Cases:
  • Document image preprocessing for OCR
  • Automated image analysis and feature extraction
  • Building image manipulation tools
Alternatives:
  • OpenCV – Much larger library focused on computer vision, whereas Leptonica is lighter and focused on image processing/analysis.
  • ImageMagick – Primarily a command-line tool for image conversion, while Leptonica is a programmatic C library.
Version History
Detected Version Rev Change Commit
Dec 25, 2025 2:47am 1.86.0 0 VERSION_BUMP 7fabb7f5
Sep 10, 2025 10:02pm 0 VERSION_BUMP ee6b7d86
Nov 24, 2024 10:15am 0 VERSION_BUMP 6a846a24
Sep 10, 2024 7:28am 0 VERSION_BUMP 63df42a1
Dec 24, 2023 4:24pm 0 VERSION_BUMP a57e9735
Aug 9, 2023 12:30pm 0 VERSION_BUMP e889f053
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