FaceRecognition/models/README.md

Face Embedding Model

face_recognition_sface_2021dec.onnx is the OpenCV Zoo SFace model used by the default application. It accepts an aligned 112 x 112 BGR face and returns a 128-dimensional feature vector. The application L2-normalizes that vector before publishing it.

• Source: https://github.com/opencv/opencv_zoo/tree/main/models/face_recognition_sface
• Download mirror: https://huggingface.co/opencv/face_recognition_sface
• Upstream project: https://github.com/opencv/opencv
• Model filename: face_recognition_sface_2021dec.onnx
• SHA-256: 0ba9fbfa01b5270c96627c4ef784da859931e02f04419c829e83484087c34e79
• License: Apache License 2.0; see LICENSE in this directory.

Keep the license and model metadata with the model when redistributing the repository. CMake verifies the bundled model checksum, and the application validates its output contract during startup rather than running without feature extraction.