Sandbox::https://github.com/mapbox/pixelmatch/blob/main/bench.js

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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)));

}