face-api.js | JavaScript API for face detection | Computer Vision library
kandi X-RAY | face-api.js Summary
kandi X-RAY | face-api.js Summary
JavaScript API for face detection and face recognition in the browser and nodejs with tensorflow.js
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face-api.js Examples and Code Snippets
Community Discussions
Trending Discussions on face-api.js
QUESTION
I'm using ReactJs to execute face-api-js for face recognition. In the console log I'm getting the values but it is not displaying in the live video.
Unhandled Rejection (TypeError): Cannot set property 'innerHTML' of undefined this is the error I am getting under the function handleVideoOnPlay
I'm new to the react framework it would be great if someone helps me out.
...ANSWER
Answered 2021-May-27 at 05:38Problem:
Cannot set property 'innerHTML' of undefined
Reason: canvasRef.current becomes undefined
Before continuing, I found one thing, the line
has Ref, it should be ref
Now,
I guess you should make use of useEffect() as follows
QUESTION
I've build an javascript function with face-api.js for my react component which will return/console me the width and height of face detector box. I tried console.log in few places it seems working fine till the models(face-recognition-model).
But when I write async function for face detector to detect face and console. It gives me error-
...ANSWER
Answered 2021-May-13 at 12:11You need to change the order of function declaration. You can not call const variables before they were declared.
QUESTION
I'm running a face detection model via JS in the webcam, it recognises the face and draws the box correctly. How can I then go about saving the detected face only as an image locally to my computer?
Im grateful for any help! Im stuck!
The code (from face-api.js) is as follows:
JavaScript
...ANSWER
Answered 2021-Mar-26 at 19:42You have a canvas. You can save a canvas: How To Save Canvas As An Image With canvas.toDataURL()?
Assuming detections is an array:
QUESTION
i use @tensorflow/tfjs-node package for face-api.js package to speed up things (as they said ) that is my code :
...ANSWER
Answered 2021-Mar-21 at 08:25As explained in this github issue
The version of face-api.js you are using is not compatible with tfjs 2.0+ or 3.0+, only obsolete 1.x. Why it worked before you added tfjs-node? because face-api.js actually includes bundled version of tfjs-core 1.x. Once you added tfjs-node, it overrode global tf namespace, but its a much newer version and not compatible.
You must install obsolete tfjs-node 1.x OR follow the pointers they give to use a newer port of face-api.js that supports TF 2.0.
QUESTION
Just found out about the awesome face-api.js repo, and I'm having a great time using the face expressions API. Maybe because I was smiling too much (for the testing).
Anyway, In my app, I want to check if the user is smiling but without displaying the camera video on the screen.
For now, I can check if the user is smiling or not with a pretty good accuracy, but the video has to be on my screen.
How can I remove the video from the screen?
Here is the js code:
...ANSWER
Answered 2021-Jan-18 at 20:25I'm here to answer my own question just in case someone needs it in the future.
The obvious answer should be to add a "display: none;" to the video tag. However, this doesn't work somehow.
Instead, I created the element in javascript, appended it to the DOM, and changed its display to "none", and it worked.
Here is the code that made it work:
QUESTION
My name is Gabriel and I'm using face-api.js to apply FaceRecognition on my final essay, on my way to graduate.
With the objective of trying the face-api and understand how it works, I created the following test.js:
...ANSWER
Answered 2020-Nov-24 at 03:41I did post an Issue to github Face-API page, and there I was able to found a solution, so, if anyone would like to see it: https://github.com/justadudewhohacks/face-api.js/issues/729 Thanks for your time!
QUESTION
import React, { useRef, useState, useEffect } from 'react';
import * as faceapi from 'face-api.js';
function App() {
const videoRef = useRef(null);
const canvasRef = useRef(null);
useEffect(() => {
const loadModels = async () => {
try {
const MODEL_URL = '/models'
Promise.all([
faceapi.nets.tinyFaceDetector.loadFromUri(MODEL_URL),
faceapi.nets.faceLandmark68Net.loadFromUri(MODEL_URL),
faceapi.nets.faceRecognitionNet.loadFromUri(MODEL_URL),
faceapi.nets.faceExpressionNet.loadFromUri(MODEL_URL),
]).then(startVideo())
} catch (error) {
console.error(error)
}
}
loadModels();
}, [])
const startVideo = async () => {
try {
let stream = null;
stream = await navigator.mediaDevices.getUserMedia({ audio: true, video: true });
videoRef.current.srcObject = stream;
} catch (error) {
console.error(error)
}
}
const handleVideoOnPlay = () => {
setInterval(async () => {
const detections = await faceapi.
detectAllFaces(videoRef.current, new faceapi.TinyFaceDetectorOptions())
.withFaceLandmarks()
.withFaceExpressions()
}, 100)
}
return (
);
}
export default App;
ANSWER
Answered 2020-Oct-15 at 23:07The erorr was videoRef.current was null, just need to wrap it in
QUESTION
I'm trying to run this example in the browser
https://justadudewhohacks.github.io/face-api.js/docs/index.html#getting-started-browser
Specifically this code here
...ANSWER
Answered 2020-Aug-28 at 12:56So, the error you were talking about in the question is:
QUESTION
I am trying to render a class component using conditional rendering. The class component has a state value that is by default set to false. In the class, a function called start() performs some operation and based on the results, it will call a function verifyTheIdentity() that has setState(). But I am not able to call the verifyTheIdentity() from start().
ANSWER
Answered 2020-Jun-06 at 18:18First of all, you do not need bind at all, if you use arrow function.
QUESTION
I have this script and he return this error in console SyntaxError: missing ) after argument list but i dont found where is the error in my code.
...ANSWER
Answered 2020-May-26 at 04:45At the end of all your faceapi.nets. lines inside the big Promise.add, you end all the lines with just a comma rather than ending with ),. Since you are calling loadFromUri, you need to close the function before moving onto the next one.
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