/**
 *
 * @param url 需要转为图片的链接
 * @returns 图片的 dom
 */
export declare const urlToImg: (url: string) => Promise<HTMLImageElement>;
export declare const base64DecodeImageKey: (base64ImgKey: string) => string;
/**
 * 通过url获取图片的base64字符串
 * @param src 图片链接
 * @param outputFormat 图片格式
 * @returns base64 @string
 */
export declare const getBase64ByUrl: (src: string | URL, outputFormat?: string) => Promise<unknown>;
/**
 * 把文件转base64
 * @param file @file 文件
 * @returns @string
 */
export declare const fileToBase64: (file: any) => Promise<string>;
/**
 *
 * @param image @file 图片文件
 * @param width @number 宽度
 * @param height @number  高度
 * @returns  @string base64
 */
export declare const getBase64Image: (image: any, width?: any, height?: any) => string;
/**
 * 通过图片获取base64
 * @param src 图片地址
 * @returns @string
 */
export declare const getBase64ByImage: (src: string) => Promise<unknown>;
/**
 * url转base64
 * @param {String} url - url地址
 */
export declare const urlToBase64V2: (url: string) => Promise<unknown>;
/**
 * base64转Blob
 * @param {String} base64 - base64
 */
export declare function base64toBlob(base64: string): Blob | undefined;
/**
 * 图片集打包压缩下载
 * 1. url -> base64 -> blob
 * 2. 将blob加入jsZip文件夹内，用file-saver保存
 * @param {Array<{url:string,name:string}>} imgDataList
 * @param {string} zipName
 */
export declare const downloadPackageImages: (imgDataList: string | any[], zipName: string) => Promise<void>;
export declare function getFileSize(size: number): string;
export declare const dataURLToBlob: (dataurl: string) => Blob;