import { ImageBasicInfo } from "./types";
/**
 * 图片分段信息
 */
export interface ImageSegment {
    index: number;
    total: number;
    startY: number;
    endY: number;
    buffer: Buffer;
}
/**
 * 分段配置
 */
export interface SegmentConfig {
    maxHeight: number;
    overlapRatio: number;
}
/**
 * 获取图片基本信息
 */
export declare function getImageInfo(imagePath: string): Promise<ImageBasicInfo>;
/**
 * 判断是否为长图
 */
export declare function isLongImage(info: ImageBasicInfo): boolean;
/**
 * 验证图片文件
 */
export declare function validateImage(imagePath: string): Promise<void>;
/**
 * 将长图分割成多个段落
 */
export declare function splitLongImage(imagePath: string, info: ImageBasicInfo, config?: SegmentConfig): Promise<ImageSegment[]>;
/**
 * 保存分段图片到临时文件
 */
export declare function saveSegmentToTemp(segment: ImageSegment): Promise<string>;
/**
 * 清理临时文件
 */
export declare function cleanupTempFile(filePath: string): Promise<void>;
/**
 * 合并多个分段的识别结果
 */
export declare function mergeSegmentResults(results: string[]): string;
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