/**
 * Error definitions for face detection
 */
/**
 * Error codes for the facial detection package
 */
export declare enum ErrorCode {
    UNKNOWN_ERROR = 0,
    INVALID_INPUT = 1,
    MODEL_LOAD_FAILED = 100,
    BACKEND_INITIALIZATION_FAILED = 101,
    UNSUPPORTED_ENVIRONMENT = 102,
    DETECTION_FAILED = 200,
    NO_FACES_DETECTED = 201,
    TRACKING_ERROR = 202,
    LANDMARK_DETECTION_FAILED = 300,
    RESOURCE_EXHAUSTED = 400,
    RESOURCE_DISPOSED = 401
}
/**
 * Additional error information
 */
export interface ErrorDetails {
    code: ErrorCode;
    originalError?: Error;
    context?: Record<string, unknown>;
}
/**
 * Base error class for facial detection
 */
export declare class FaceDetectionError extends Error {
    readonly code: ErrorCode;
    readonly originalError?: Error;
    readonly context?: Record<string, unknown>;
    constructor(message: string, details?: ErrorDetails);
    toString(): string;
    static fromError(error: Error, code?: ErrorCode): FaceDetectionError;
}
/**
 * Error for facial detection failures
 */
export declare class FaceDetectorError extends FaceDetectionError {
    constructor(message: string, details?: ErrorDetails);
}
/**
 * Error for landmark detection failures
 */
export declare class LandmarkDetectorError extends FaceDetectionError {
    constructor(message: string, details?: ErrorDetails);
}
/**
 * Error for model initialization failures
 */
export declare class ModelInitializationError extends FaceDetectionError {
    constructor(message: string, details?: ErrorDetails);
}
/**
 * Error for invalid inputs
 */
export declare class InvalidInputError extends FaceDetectionError {
    constructor(message: string, context?: Record<string, unknown>);
}