image-js/lib/featureMatching/keypoints/getShiTomasiScore.d.ts

Image processing and manipulation in JavaScript

import type { Image } from '../../Image.ts';
import type { Point } from '../../index_full.ts';
export interface GetShiTomasiScoreOptions {
    qualityLevel?: number;
    /**
     * Size of the window to compute the Harris score.
     * Should be an odd number so that the window can be centered on the corner.
     * @default `7`
     */
    windowSize?: number;
}
/**
 * Get the Shi-Tomasi score of a corner. The idea is similar to Harris score, but it removes constant to calculate the score and just takes the minimum from two eigenvalues.
 * We distinguish 3 cases:
 * - the score is highly negative: you have an edge
 * - the absolute value of the score is small: the region is flat
 * - the score is highly positive: you have a corner.
 * @param image - Image to which the corner belongs. It must be a greyscale image with only one channel.
 * @param origin - Center of the window, where the corner should be.
 * @param options  - Get Shi-Tomasi score options.
 * @returns The Shi-Tomasi score.
 */
export declare function getShiTomasiScore(image: Image, origin: Point, options?: GetShiTomasiScoreOptions): number;
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