/**
 * Copyright (c) 2019-present Houfeng
 * @author Houfeng <admin@xhou.net>
 */
import { ISize } from "vector-helper";
/**
 * Copyright (c) 2019-present Houfeng
 * @author Houfeng <admin@xhou.net>
 */
export declare function readFileAsDataURL(file: File): Promise<string>;
/**
 * 获取一个图片的宽高
 * @param url 图片的 URL
 */
export declare function getImageSize(url: string): Promise<ISize>;