import { IXRTrackedImage } from "@galacean/engine-design";
import { XRTracked } from "../XRTracked";
import { XRReferenceImage } from "./XRReferenceImage";
/**
 * A tracked image in XR space.
 */
export declare class XRTrackedImage extends XRTracked implements IXRTrackedImage {
    /** The reference image which was used to detect this image in the environment.  */
    referenceImage: XRReferenceImage;
    /** The width of the image in meters in the physical world. */
    measuredPhysicalWidth: number;
}