import type { Image } from '../../Image.js';
import type { Point } from '../../geometry/index.js';
export interface CompareIntensityOptions {
    /**
     * Origin of the points coordinates relative to the top-left corner.
     * @default `image.getCoordinates('center')`
     */
    origin?: Point;
}
/**
 * Compare the intensity of two pixels of a GREY image.
 * @param image - Source image of the pixels.
 * @param p1 - First point.
 * @param p2 - Second point.
 * @param options - Options.
 * @returns Wether p1 is darker that p2.
 */
export declare function compareIntensity(image: Image, p1: Point, p2: Point, options?: CompareIntensityOptions): boolean;
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