# bytedeco/javacv

Java interface to OpenCV, FFmpeg, and more

Repository: https://github.com/bytedeco/javacv
Canonical: https://ross.abutalabs.com/products/javacv
Language: Java
License: NOASSERTION
License Family: other
Topics: javacv, java, opencv, ffmpeg, computer-vision, multimedia, maven, opencv-java
Last push: 2026-08-12T02:20:17+00:00

## Health v2 (maintenance only)
Score: 86/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 97, release rhythm 65, longevity 100
- inputs: {"age_days": 4517, "days_push": 22, "days_rel": 23, "gap_med": 226, "n_releases_24m": 4}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 8335, forks 1619 (observed 2026-08-28T04:10:20.360977+00:00)

## What it is
JavaCV is a Java library that wraps OpenCV, FFmpeg, and other computer vision and multimedia libraries via JavaCPP Presets, with utility classes for camera calibration, feature detection, and image alignment. It works on the JVM including Android and ships hardware-accelerated display and parallel processing helpers.

## Use cases
- process video frames in Java with OpenCV and FFmpeg
- build an Android app that does face or object detection
- calibrate cameras and projectors from Java
- run OCR on images using Tesseract from the JVM
- capture and display live camera feeds in Java
- match feature points to find objects in images

## When to choose
- you need OpenCV or FFmpeg functionality from Java or Kotlin without writing JNI bindings
- you want a single Maven dependency bundling many vision and multimedia native libraries
- you target Android or desktop JVM for computer vision work

## When to avoid
- you work in Python or C++ and can use OpenCV natively
- you need only lightweight image operations where a pure-Java library suffices
- you dislike large native binary dependencies in your build

## Facets
- artifact type: library
- maturity: active
- function: computer-vision, image-processing, video-processing, ocr, sdk
- domain: computer-vision, image-processing, cross-platform
- platform: jvm, cross-platform
- tags: opencv, ffmpeg, javacpp, multimedia, camera-calibration, maven, video, android

## Member repositories
- bytedeco/javacv (main) score 86

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:20.360977+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:27:43.643124+00:00, confidence not recorded.
  - readme: https://github.com/bytedeco/javacv (fetched 2026-08-28T04:10:20.360977+00:00, sha 9b82ba640f65)
- Data as of 2026-08-30T08:39:29.467469+00:00.