/**
 * @description: 将图片直接转化date URL字符串形式
 * @param {Blob} file
 * @param {function} callback
 * @return {void}
 */
export declare const fileToDataUrl: (file: Blob, callback: (arg0: any) => void) => void;
/**
 * @description: 将文件转换为imgae对象
 * @param {Blob} file
 * @param {function} callback
 * @return {void}
 */
export declare function fileToImage(file: Blob, callback: (arg0: any) => void): void;
/**
 * @description: 通过图片链接（url）获取图片 Image 对象
 * @param {string} url
 * @param {function} callback
 * @return {void}
 */
export declare function urlToImage(url: string, callback: (arg0: any) => void): void;
/**
 * @description: image 转换为canvas
 * @param {CanvasImageSource} image
 * @param {number} width
 * @param {number} height
 * @return {HTMLCanvasElement}
 */
export declare function imageToCanvas(image: HTMLImageElement, width?: number, height?: number): HTMLCanvasElement;
/**
 * @description: 将canvas转换为data_url
 * @param {HTMLCanvasElement} canvas
 * @param {number | undefined} quality
 * @param {string | undefined} type
 * @return {string}
 */
export declare function canvasToDataUrl(canvas: HTMLCanvasElement, quality?: any, type?: string): string;
/**
 * @description: 图片链接转换为Image
 * @param {string} dataUrl
 * @param {function} callback
 * @return {void}
 */
export declare function dataUrlToImage(dataUrl: string, callback: (arg0: any) => void): void;
/**
 * @description: base64转blob
 * @param {any} dataUrl
 * @param {string} type
 * @return {Blob}
 */
export declare function dataUrlToBlob(dataUrl: any, type?: string): Blob;
/**
 * @description: canvas 转 blob
 * @param {HTMLCanvasElement} canvas
 * @param {function} callback
 * @param {any} quality
 * @param {any} type
 * @return {void}
 */
export declare function canvasToBlob(canvas: HTMLCanvasElement, callback: (arg0: any) => void, quality?: number, type?: string): void;
/**
 * @description: blob 转 base64
 * @param {Blob} blob
 * @param {function} callback
 * @return {void}
 */
export declare function blobToDataUrl(blob: Blob, callback: (arg0: any) => void): void;
/**
 * @description: blob转image
 * @param {Blob} blob
 * @param {function} callback
 * @return {void}
 */
export declare function blobToImage(blob: Blob, callback: (arg0: any) => void): void;
/**
 * @description: 图片压缩
 * @param {{file: Blob; quality?: number; mimeType?: string; width?: number; height?: number}} options
 * @param {function} callback
 * @return {void}
 */
export declare function imageCompressor(compressorOptions: {
    file: Blob;
    quality?: number;
    mimeType?: string;
    width?: number;
    height?: number;
}, callback: (arg0: any) => void): void;