image-js/lib/featureMatching/descriptors/getBrief.js

Image processing and manipulation in JavaScript

import { getBestKeypointsInRadius } from '../keypoints/getBestKeypointsInRadius.js';
import { getOrientedFastKeypoints } from '../keypoints/getOrientedFastKeypoints.js';
import { getBriefDescriptors } from './getBriefDescriptors.js';
/**
 * Get the keypoints and corresponding descriptors for an image.
 * @param image - Image to process.
 * @param options - Get brief options.
 * @returns The Brief (keypoints and corresponding descriptors).
 */
export function getBrief(image, options = {}) {
    const { centroidPatchDiameter = 15, bestKptRadius = 10, minScore } = options;
    const allSourceKeypoints = getOrientedFastKeypoints(image, {
        centroidPatchDiameter,
    });
    const sourceKeypoints = getBestKeypointsInRadius(allSourceKeypoints, bestKptRadius);
    const brief = getBriefDescriptors(image, sourceKeypoints);
    if (minScore) {
        for (let i = 0; i < brief.keypoints.length; i++) {
            if (brief.keypoints[i].score < minScore) {
                return {
                    keypoints: brief.keypoints.slice(0, i - 1),
                    descriptors: brief.descriptors.slice(0, i - 1),
                };
            }
        }
    }
    return brief;
}
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