import * as faceapi from 'face-api.js';
import type { FaceProfile } from './types';
export declare class FaceRecognition {
    private initialized;
    private faceLibrary;
    private modelPath;
    private readonly FACE_MATCH_THRESHOLD;
    private readonly MIN_FACE_SIZE;
    initialize(): Promise<void>;
    detectFaces(imageData: Buffer, width: number, height: number): Promise<Array<{
        detection: faceapi.FaceDetection;
        landmarks: faceapi.FaceLandmarks68;
        descriptor: Float32Array;
        expressions: faceapi.FaceExpressions;
        ageGender?: {
            age: number;
            gender: string;
            genderProbability: number;
        };
    }>>;
    recognizeFace(descriptor: Float32Array): Promise<{
        profileId: string;
        distance: number;
    } | null>;
    addOrUpdateFace(descriptor: Float32Array, attributes?: Partial<FaceProfile>): Promise<string>;
    getFaceProfile(profileId: string): FaceProfile | undefined;
    getAllProfiles(): FaceProfile[];
    private euclideanDistance;
    saveFaceLibrary(path: string): Promise<void>;
    loadFaceLibrary(path: string): Promise<void>;
}