# ShiqiYu/libfacedetection

An open source library for face detection in images. The face detection speed can reach 1000FPS.

Repository: https://github.com/ShiqiYu/libfacedetection
Canonical: https://ross.abutalabs.com/products/libfacedetection
Language: C++
License: NOASSERTION
License Family: other
Topics: face-detection, cnn, arm
Last push: 2026-06-28T12:33:49+00:00

## Health v2 (maintenance only)
Score: 63/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 89, release rhythm 8, longevity 100
- inputs: {"age_days": 4243, "days_push": 66, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- 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 12784, forks 3025 (observed 2026-08-28T04:10:59.756792+00:00)

## What it is
An open-source C++ library for CNN-based face detection in images, with the model embedded as static C source so it has no external dependencies. It uses SIMD optimizations (AVX2, NEON) to achieve very high detection speeds, up to thousands of FPS on small images.

## Use cases
- detect faces in images
- real-time face detection from camera feed
- embed face detection in a C++ application
- run face detection on ARM devices
- fast face detection without external dependencies

## When to choose
- you need fast, dependency-free face detection in C/C++
- you target embedded or ARM platforms with NEON support
- you want a model compiled directly into your binary

## When to avoid
- you need face recognition or landmarks beyond detection
- you prefer a Python-first or GPU-accelerated deep learning stack
- you need dynamic input shapes with OpenCV DNN

## Facets
- artifact type: library
- maturity: stable
- function: computer-vision, image-processing, machine-learning, deep-learning
- domain: computer-vision, image-processing, artificial-intelligence
- platform: cpp, cross-platform, windows, embedded
- tags: face-detection, cnn, simd, neon, avx2, onnx, yunet, real-time, linux, macos

## Member repositories
- ShiqiYu/libfacedetection (main) score 63

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:59.756792+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 2026-08-29T17:13:48.172375+00:00, confidence not recorded.
  - readme: https://github.com/ShiqiYu/libfacedetection (fetched 2026-08-28T04:10:59.756792+00:00, sha 26d71551ad80)
- Data as of 2026-08-30T08:39:29.467469+00:00.