import { CropperOptions, ImageInfo, ImageSelectOptions, ImageSelectResult, PointPosition, Position, SimplePosition } from './types';
export interface SelectFileOptions {
    accept?: string;
    multiple?: boolean;
}
/**
 * 选择文件
 * @example
 * selectFile({ accept: 'image/*', multiple: true }).then(files => {
 *     console.log(files)
 * })
 */
export declare const selectFile: (options?: SelectFileOptions) => Promise<File[]>;
/**
 * 选择并验证图片文件
 * @param options 图片选择配置选项
 * @returns 验证通过的File对象数组
 */
export declare const selectImage: (options?: ImageSelectOptions) => Promise<ImageSelectResult>;
interface ImageDimensions {
    width: number;
    height: number;
}
export declare const getImageDimensions: (file: File) => Promise<ImageDimensions>;
export declare const resizeImage: (file: File, dimensions: ImageDimensions, type?: string, quality?: number) => Promise<File>;
export declare const loadImage: (url: string, revoke?: boolean) => Promise<HTMLImageElement>;
export declare const canvasToBlob: (canvas: HTMLCanvasElement, type?: string, quality?: number) => Promise<Blob>;
export declare const blobToBase64: (blob: Blob) => Promise<string>;
export declare const cropper: <T extends File | string = File | string>(info: ImageInfo, pos: Position, options?: CropperOptions) => Promise<T>;
export declare const getIsClipPathSupported: () => boolean;
export declare const getPointOffset: (value: SimplePosition, pos: Position, position: PointPosition) => SimplePosition;
export {};