Test

const puppeteer = require('puppeteer')
const fs = require('fs').promises
const Jimp = require('jimp')
const pixelmatch = require('pixelmatch')
const { cv } = require('opencv-wasm')

async function findPuzzlePosition (page) {
let images = await page.$$eval('.geetest_canvas_img canvas', canvases => canvases.map(canvas => canvas.toDataURL().replace(/^data:image\/png;base64,/, '')))

await fs.writeFile(`./puzzle.png`, images, 'base64')