import { Vector2, Vector3 } from 'three';
import { Observable } from 'rxjs';
import { RGBImage2, GrayImage2, GrayImage3 } from '../../image-slice-show/share/image';
export declare function dummyRGBImage(size: Vector2, shape: Vector2): RGBImage2;
export declare function dummyGrayImage(size: Vector2, shape: Vector2): GrayImage2;
export declare function dummyGrayImage3(size: Vector3, shape: Vector3): GrayImage3;
export declare function sequenceDummyGrayImage2(size: Vector2, shape: Vector2, center: Vector2, next$: Observable<void>): Observable<GrayImage2>;