export declare function imageUnEmbed(blob: Blob): void;
/**
 * 把编码过的像素数据转化为原始数据（为了高宽比，会填充 0，所以长度可能会与原数据不同）
 */
export declare function imageEmbedBufferRead(buffer: ArrayBuffer, options?: IImageEmbedBufferReadOptions): ArrayBuffer;
export interface IImageEmbedBufferReadOptions {
    width: number;
    height: number;
    blockSize: number;
}
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