/**
 * PaddleOCR 增强版主类
 * 提供 OCR、表格、公式、条码等识别功能
 */
import { PaddleOCROptions, OCRResult, TableResult, LayoutResult, FormulaResult, BarcodeResult, WatermarkInfo, ImageSource, ProcessOptions, BatchOCRResult, OCRStats } from "./typings";
/**
 * PaddleOCR 主类
 */
declare class PaddleOCR {
    private detector;
    private recognizer;
    private tableRecognizer;
    private layoutAnalyzer;
    private formulaRecognizer;
    private barcodeRecognizer;
    private imageCache;
    private resultCache;
    private options;
    private isInitialized;
    private stats;
    private totalDuration;
    /**
     * 创建 PaddleOCR 实例
     * @param options 配置选项
     */
    constructor(options?: PaddleOCROptions);
    /**
     * 合并默认配置
     */
    private mergeOptions;
    /**
     * 初始化所有模型
     */
    init(): Promise<void>;
    /**
     * 获取初始化阶段列表
     */
    private getInitStages;
    /**
     * 更新进度
     */
    private updateProgress;
    /**
     * 识别文本
     * @param image 图像源
     * @param options 处理选项
     */
    recognize(image: ImageSource, options?: ProcessOptions): Promise<OCRResult>;
    /**
     * 批量识别
     */
    recognizeBatch(images: ImageSource[], options?: ProcessOptions): Promise<BatchOCRResult>;
    /**
     * 识别表格
     */
    recognizeTable(image: ImageSource, options?: ProcessOptions): Promise<TableResult>;
    /**
     * 分析布局
     */
    analyzeLayout(image: ImageSource, options?: ProcessOptions): Promise<LayoutResult>;
    /**
     * 识别公式
     */
    recognizeFormula(image: ImageSource, options?: ProcessOptions): Promise<FormulaResult[]>;
    /**
     * 检测条码
     */
    detectBarcodes(image: ImageSource): Promise<BarcodeResult[]>;
    /**
     * 检测水印
     */
    detectWatermarks(image: ImageSource): Promise<WatermarkInfo[]>;
    /**
     * 加载图像数据
     */
    private loadImageData;
    /**
     * 获取统计信息
     */
    getStats(): OCRStats;
    /**
     * 释放资源
     */
    dispose(): Promise<void>;
    /**
     * 获取支持的语言
     */
    static version: string;
    static getSupportedLanguages(): string[];
    /**
     * 获取模型信息
     */
    static getModelInfo(): {
        detection: string[];
        recognition: string[];
        table: string[];
        formula: string[];
        layout: string[];
    };
    /**
     * 检查环境支持
     */
    static isSupported(): Promise<boolean>;
}
export default PaddleOCR;
export { PaddleOCR };