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@vladmandic/face-api

JavaScript module for Face Detection and Face Recognition Using Tensorflow/JS

  • 0.8.8
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  • npm
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FaceAPI

Note

This is updated face-api.js with latest available TensorFlow/JS as the original face-api.js is not compatible with tfjs 2.0+.

Forked from face-api.js version 0.22.2 released on March 22nd, 2020

  • https://github.com/justadudewhohacks/face-api.js
  • https://www.npmjs.com/package/face-api.js

Currently based on TensorFlow/JS 2.7.0
If you want to access TFJS classes and methods directly, they are exported as faceapi.tf

Why?

Because I needed FaceAPI that does not cause version conflict with newer TFJS 2.0 that I use accross my projects
And since original FaceAPI was open-source, I've released this version as well
Unfortunately, changes ended up being too large for a simple pull request on original FaceaPI and it ended up being a full-fledged version on its own

Differences

  • Compatible with TensorFlow/JS 2.0+
  • Compatible with WebGL, CPU and WASM TFJS backends
  • Updated all type castings for TypeScript type checking to TypeScript 4.1
  • Switched bundling from UMD to ESM + CommonJS
    This does require separate process for usage in NodeJS vs Browser, but resulting code is much lighter
    Fully tree shakable when imported as an ESM module
    Browser bundle process uses ESBuild instead of Rollup
  • Typescript build process now targets ES2018 and instead of dual ES5/ES6
    Resulting code is clean ES2018 JavaScript without polyfills
  • Removed old tests, docs, examples
  • Removed old package dependencies (karma, jasmine, babel, etc.)
  • Updated all package dependencies
  • Updated TensorFlow/JS dependencies since backends were removed from @tensorflow/tfjs-core
  • Updated mobileNetv1 model due to batchNorm() dependency
  • Added version class that returns JSON object with version of FaceAPI as well as linked TFJS
  • Removed mtcnn and tinyYolov2 models as they were non-functional in latest public version of Face-API
    If there is a demand, I can re-implement them back.

Which means valid models are tinyFaceDetector and mobileNetv1

Installation

Face-API ships with several pre-build versions of the library:

  • dist/face-api.js: IIFE format for client-side Browser execution
  • dist/face-api.esm.js: ESM format for client-side Browser execution with TFJS pre-bundled
  • dist/face-api.esm.nobundle.js: ESM format for client-side Browser execution without TFJS and not minified
  • dist/face-api.node.js: CommonJS format for server-side NodeJS execution with TFJS pre-bundled
  • dist/face-api.node.nobundle.js: CommonJS format for server-side NodeJS execution without TFJS and not minified

Defaults are:

{
  "main": "dist/face-api.cjs",
  "module": "dist/face-api.esm.js",
  "browser": "dist/face-api.esm.js",
}

Reason for additional nobundle version is if you want to include a specific version of TFJS and not rely on pre-packaged one
FaceAPI is compatible with TFJS 2.0+

Bundled versions are ~1.1MB minified and non-bundled versions are ~169KB non-minified
All versions include sourcemap

There are several ways to use Face-API:

1. IIFE script

Recommened for quick tests and backward compatibility with older Browsers that do not support ESM such as IE

This is simplest way for usage within Browser
Simply download dist/face-api.js, include it in your HTML file & it's ready to use

<script src="dist/face-api.js"><script>

IIFE script bundles TFJS and auto-registers global namespace faceapi within Window object which can be accessed directly from a <script> tag or from your JS file.

2. ESM module

Recommended for usage within Browser

2.1. Direct Import

To use ESM import directly in a Browser, you must import your script (e.g. index.js) with a type="module"

  <script src="./index.js" type="module">

and then in your index.js

  import * as faceapi from 'dist/face-api.esm.js';

or to use non-bundled version:

  import * as tf from `https://cdnjs.cloudflare.com/ajax/libs/tensorflow/2.7.0/tf.es2017.min.js`; // load tfjs directly from CDN link
  import * as faceapi from 'dist/face-api.nobundle.js';
2.2. With Bundler

Same as above, but expectation is that you've installed @vladmandic/faceapi package
and that you'll package your script using a bundler such as webpack, rollup or esbuild
in which case, you do not need to import a script as module - that depends on your bundler configuration

  import * as faceapi from '@vladmandic/face-api';

or if your bundler doesn't recognize recommended type, force usage with:

  import * as faceapi from '@vladmandic/face-api/dist/face-api.esm.js';

or to use non-bundled version

  import * as tf from `@tensorflow/tfjs`;
  import * as faceapi from '@vladmandic/face-api/dist/face-api.nobundle.js';

3. NPM module

3.1. Import CommonJS

Recommended for NodeJS projects

Install with:

  npm install @vladmandic/face-api 

And then use with:

  const faceapi = require('@vladmandic/face-api');

or if you want to force CommonJS module instead of relying on recommended field:

  const faceapi = require('@vladmandic/face-api/dist/face-api.node.js');

or if you want to use a non-bundled version: Install with:

  npm install @tensorflow/tfjs
  npm install @vladmandic/face-api 

And then use with:

  const tf = require('@tensorflow/tfjs');
  const faceapi = require('@vladmandic/face-api/dist/face-api.node.nobundle.js');

4. Import Sources

Recommended for complex NodeJS projects that use TFJS for other purposes and not just FaceaPI

This way you're importing FaceAPI sources directly and not a bundle, so you have to import @tensorflow/tfjs explicitly

4.1. For Browser with Bundler
4.1.1. For JavaScript projects
  import * as tf from '@tensorflow/tfjs';
  import * as faceapi from '@vladmandic/face-api/build/index.js';
4.1.2. For TypeScript projects
  import * as tf from '@tensorflow/tfjs';
  import * as faceapi from '@vladmandic/face-api/src/index.ts';
4.2. For NodeJS
4.2.1. For JavaScript projects
  const tf = require('@tensorflow/tfjs');
  const faceapi = require('@vladmandic/face-api/build/index.js');
4.1.2. For TypeScript projects
  const tf = require('@tensorflow/tfjs');
  const faceapi = require('@vladmandic/face-api/src/index.ts');

Weights

Pretrained models and their weights are includes in ./model.

Build

If you want to do a full rebuild, either download npm module

npm install @vladmandic/face-api
cd node_modules/@vladmandic/face-api

or clone a git project

git clone https://github.com/vladmandic/face-api
cd face-api

Then install all dependencies and run rebuild:

npm install
npm run build

Which will compile everything in ./src into ./build and create both ESM (standard) and IIFE (minified) bundles as well as sourcemaps in ./dist

Documentation

For documentation refer to original project at https://github.com/justadudewhohacks/face-api.js
For original weighs refer to https://github.com/justadudewhohacks/face-api.js-models

Example

Browser

Example that uses both models as well as all of the extensions is included in /example/index.html
Example can be accessed directly using Git pages using URL: https://vladmandic.github.io/face-api/example/

NodeJS

Example is included in /example/node.js
Note that it does not require any other other 3rd party libraries

Note: Photos shown below are taken by me

alt text

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Package last updated on 03 Nov 2020

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