faceRecognitionScript.js

const video = document.getElementById('video')

Promise.all([
    faceapi.nets.tinyFaceDetector.loadFromUri('models'),
    faceapi.nets.faceLandmark68Net.loadFromUri('models'),
    faceapi.nets.faceRecognitionNet.loadFromUri('models'),
    faceapi.nets.faceExpressionNet.loadFromUri('models')
]).then(startVideo)

function startVideo(){
    navigator.getUserMedia(
        { video: {} },
        stream => video.srcObject = stream,
        err => console.error(err)
    )
}

video.addEventListener('play', () => {
    canvas =  faceapi.createCanvasFromMedia(video)
    document.body.append(canvas)
    const displaySize = {width: video.width, height: video.height}
    faceapi.matchDimensions(canvas, displaySize)
    setInterval(async() => {
        const detections = await faceapi.detectAllFaces(video,
            new faceapi.TinyFaceDetectorOptions()).withFaceLandmarks().withFaceExpressions()
            console.log(detections)
            const resizedDetections = faceapi.resizeResults(detections, displaySize)
            canvas.getContext('2d').clearRect(0,0,canvas.width,canvas.height)
            faceapi.draw.drawDetections(canvas, resizedDetections)
            //faceapi.draw.drawFaceLandmarks(canvas,resizedDetections)
            faceapi.draw.drawFaceExpressions(canvas, resizedDetections)
    }, 100)
})

function backToHome(){
    document.location.href = 'index.html';
}