UniFace: A Unified Face Analysis Library for Python
UniFace is a lightweight, production-ready Python library for face detection, recognition,
tracking, landmark analysis, face parsing, gaze estimation, and face attributes.
pip install "uniface[cpu]" # CPU and Apple Silicon
pip install "uniface[gpu]" # NVIDIA CUDA
pip install --pre "uniface[cpu]" # latest pre-release
A first script
FaceAnalyzer runs detection, alignment and recognition in one call. Attribute models are opt-in.
import cv2
from uniface import FaceAnalyzer, FairFace
analyzer = FaceAnalyzer(predictors=[FairFace()])
for face in analyzer.analyze(cv2.imread("photo.jpg")):
print(face.bbox, face.sex, face.age_group, face.embedding.shape)
bbox, confidence, landmarks and embedding are always set. Age, sex, race, emotion, quality
and the face states stay None until you pass the predictor that fills them.
All fifteen tasks, and which model does each
| Task | Models |
|---|---|
| Face Detection | RetinaFace, SCRFD, CenterFace, YOLOv5-Face, YOLOv8-Face, BlazeFace |
| Face Recognition | AdaFace, ArcFace, EdgeFace, MobileFace, SphereFace |
| Face Tracking | BYTETracker, persistent IDs across video frames |
| Facial Landmarks | 2d106det (106), PIPNet (98 / 68), Face Mesh (468 / 478, 3D) |
| Face Parsing | BiSeNet (19 classes), XSeg masking |
| Portrait Matting | MODNet, trimap-free |
| Gaze Estimation | MobileGaze (ResNet-18 / 34 / 50, MobileNetV2) |
| Head Pose | 6D rotation representation, pitch / yaw / roll |
| Demographics | AgeGender, FairFace (age group, sex, race) |
| Emotion | AffectNet-7 and AffectNet-8 |
| Face States | FaceAttribNet: eyes, glasses, sunglasses, mask |
| Face Quality | eDifFIQA (T / S / M / L) |
| Anti-Spoofing | MiniFASNet liveness |
| Anonymization | 5 blur methods |
| Vector Store | FAISS-backed embedding search |
Runs on CPU, Apple Silicon and CUDA. Weights download on first use, verified by SHA-256.
Find and measure faces
Face Detection · docs
Facial Landmarks · docs
Face Mesh · docs
Face Quality · docs
Cut faces out
Face Parsing · docs
Face Segmentation · docs
Portrait Matting · docs
Read where a head is pointing
Head Pose · docs
Gaze Estimation · docs
Read a face
Age and Sex · docs
Emotion · docs
Face States · docs
Tell a real face from a replay
Anti-Spoofing · docs
Match a face, or hide one
Face Recognition · docs
Face Anonymization · docs
Get Started · Model Zoo · Notebooks · Model licences · Contributing · Discord · Issues
Runs on CPU, Apple Silicon and CUDA. Weights download on first use, verified by SHA-256.
UniFace is MIT; some pretrained weights are not, so check
licences before shipping commercially.
Not affiliated with Uniface by Rocket Software.
1 maintainer
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