/**
 * 数据类型转换
 * TypeArray、ArrayBuffer、Blob、File、DataURL、canvas的相互转换
 * @see http://blog.csdn.net/yinwhm12/article/details/73482904
 */
export declare class DataTransform {
    /**
     * Blob to ArrayBuffer
     */
    blobToArrayBuffer(blob: Blob): Promise<ArrayBuffer>;
    /**
     * ArrayBuffer to Blob
     */
    arrayBufferToBlob(arrayBuffer: ArrayBuffer): Blob;
    /**
     * ArrayBuffer to Uint8
     * Uint8数组可以直观的看到ArrayBuffer中每个字节（1字节 === 8位）的值。一般我们要将ArrayBuffer转成Uint类型数组后才能对其中的字节进行存取操作。
     */
    arrayBufferToUint8(arrayBuffer: ArrayBuffer): Uint8Array;
    /**
     * Uint8 to ArrayBuffer
     * 我们Uint8数组可以直观的看到ArrayBuffer中每个字节（1字节 === 8位）的值。一般我们要将ArrayBuffer转成Uint类型数组后才能对其中的字节进行存取操作。
     */
    uint8ToArrayBuffer(uint8Array: Uint8Array): ArrayBuffer;
    /**
     * Array to ArrayBuffer
     * @param array 例如：[0x15, 0xFF, 0x01, 0x00, 0x34, 0xAB, 0x11];
     */
    arrayToArrayBuffer(array: number[]): ArrayBuffer;
    /**
     * TypeArray to Array
     */
    uint8ArrayToArray(u8a: Uint8Array): number[];
    /**
     * canvas转换为dataURL
     */
    canvasToDataURL(canvas: HTMLCanvasElement, type?: 'png' | 'jpeg', quality?: number): string;
    /**
     * canvas转换为图片
     */
    canvasToImage(canvas: HTMLCanvasElement, type?: 'png' | 'jpeg', quality?: number): Promise<HTMLImageElement>;
    /**
     * File、Blob对象转换为dataURL
     * File对象也是一个Blob对象，二者的处理相同。
     */
    blobToDataURL(blob: Blob): Promise<string>;
    /**
     * dataURL转换为Blob对象
     */
    dataURLtoBlob(dataurl: string): Blob;
    dataURLToArrayBuffer(dataurl: string): Promise<ArrayBuffer>;
    arrayBufferToDataURL(arrayBuffer: ArrayBuffer): Promise<string>;
    dataURLToImage(dataurl: string): Promise<HTMLImageElement>;
    imageToDataURL(img: HTMLImageElement, quality?: number): string;
    imageToCanvas(img: HTMLImageElement): HTMLCanvasElement;
    imageToArrayBuffer(img: HTMLImageElement): Promise<ArrayBuffer>;
    imageDataToDataURL(imageData: ImageData, quality?: number): string;
    imageDataToCanvas(imageData: ImageData): HTMLCanvasElement;
    imagedataToImage(imageData: ImageData, quality?: number): Promise<HTMLImageElement>;
    arrayBufferToImage(arrayBuffer: ArrayBuffer): Promise<HTMLImageElement>;
    blobToText(blob: Blob): Promise<string>;
    stringToArrayBuffer(str: string): ArrayBuffer;
    arrayBufferToString(arrayBuffer: ArrayBuffer): Promise<string>;
    /**
     * ArrayBuffer 转换为 对象
     *
     * @param arrayBuffer
     */
    arrayBufferToObject(arrayBuffer: ArrayBuffer): Promise<any>;
    stringToUint8Array(str: string): Uint8Array;
    uint8ArrayToString(arr: Uint8Array): string;
}
/**
 * 数据类型转换
 * TypeArray、ArrayBuffer、Blob、File、DataURL、canvas的相互转换
 * @see http://blog.csdn.net/yinwhm12/article/details/73482904
 */
export declare const dataTransform: DataTransform;
//# sourceMappingURL=DataTransform.d.ts.map