import { ILTRect } from './rects/ILTRect';
import { DataURL } from './DataURLs';
import { IDimensions } from "./IDimensions";
import { ImageType } from "./ImageType";
export declare type RawImageData = ArrayBuffer | DataURL | HTMLImageElement;
export interface ImageData {
    readonly data: ArrayBuffer | DataURL;
    readonly format: 'arraybuffer' | 'dataurl';
    readonly type: ImageType;
    readonly width: number;
    readonly height: number;
}
export declare namespace ImageDatas {
    function toDataURL(image: ImageData): string;
}
export declare namespace Canvases {
    function toDataURL(data: HTMLCanvasElement | ArrayBuffer, opts?: ImageOpts): Promise<string>;
    function toArrayBuffer(canvas: HTMLCanvasElement, opts?: ImageOpts): Promise<ArrayBuffer>;
    interface CropOpts extends ImageOpts, CanvasOpts {
    }
    function crop(image: RawImageData, rect: ILTRect, opts?: CropOpts): Promise<DataURL>;
    interface ResizeOpts extends ImageOpts, CanvasOpts {
    }
    function resize(data: RawImageData, dimensions: IDimensions, opts?: ResizeOpts): Promise<ImageData>;
    function extract(canvas: HTMLCanvasElement, rect: ILTRect, opts?: ImageOpts): Promise<ImageData>;
    function canvasToImageData(canvas: HTMLCanvasElement, opts?: ImageOpts): Promise<ImageData>;
    function arrayBufferToImageData(data: ArrayBuffer, dimensions: IDimensions, type: ImageType): Promise<ImageData>;
}
export interface CanvasOpts {
    canvas?: HTMLCanvasElement;
}
export interface ImageOpts {
    readonly type: ImageType;
    readonly quality: number;
}
export declare class DefaultImageOpts implements ImageOpts {
    readonly type = "image/png";
    readonly quality = 1;
}