import type { Image } from '../../Image.ts';
import type { SsimOptions } from './compute_ssim.ts';
/**
 * Compute the Structural Dissimilarity (DSSIM) of two GREY images.
 * @see {@link https://en.wikipedia.org/wiki/Structural_similarity}
 * @param image - First image.
 * @param otherImage - Second image.
 * @param options - Options.
 * @returns SSIM of the two images.
 */
export declare function computeDssim(image: Image, otherImage: Image, options?: SsimOptions): number;
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