pixelmatch/bench.js

import match from './index.js';
import {PNG} from 'pngjs';
import fs from 'fs';

const data = [1, 2, 3, 4, 5, 6, 7].map(i => [
    readImage(`${i}a`),
    readImage(`${i}b`)
]);

console.time('match');
let sum = 0;
for (let i = 0; i < 100; i++) {
    for (const [img1, img2] of data) {
        sum += match(img1.data, img2.data, null, img1.width, img1.height);
    }
}
console.timeEnd('match');
console.log(sum);

function readImage(name) {
    return PNG.sync.read(fs.readFileSync(new URL(`test/fixtures/${name}.png`, import.meta.url)));
}