import { DynamicMprImageSourceOptions } from './DynamicMprImageSource';
import { RawVolumeMprImageSourceOptions } from './RawVolumeMprImageSource';
import ViewState from '../ViewState';
import Viewer from '../viewer/Viewer';
import MprImageSource from './MprImageSource';
interface HybridImageSourceOptions extends RawVolumeMprImageSourceOptions, DynamicMprImageSourceOptions {
}
/**
 * HybridImageSource combines DynamicMprImageSource and RawVolumeMprImageSource.
 * It can draw MPR images as soon as the former gets ready,
 * and then switch to RawVolumeMprImageSource when it is ready.
 */
export default class HybridMprImageSource extends MprImageSource {
    private dynSource;
    private volSource;
    private volumeReady;
    constructor(imageSourceOptions: HybridImageSourceOptions);
    draw(viewer: Viewer, viewState: ViewState): Promise<ImageData>;
    ready(): Promise<any>;
    initialState(viewer: Viewer): ViewState;
}
export {};