<tracking-elements>

A set of Web Components made with Polymer that uses the tracking.js library to do real-time color tracking, face detection and much more.

• Official website
• Documentation
• API Docs

Demo

• Color tracker
• Object tracker

Install

Install the component using Bower:

$ bower install tracking-elements --save

Or download as ZIP.

Usage

1. Import Web Components' polyfill:

   <script src="bower_components/platform/platform.js"></script>

2. Import Custom Element:

   <link rel="import" href="bower_components/tracking-elements/dist/image-color-tracking.html">

3. Start using it!

   <image-color-tracking></image-color-tracking>

Color Trackers

There are three different custom elements to use in three different HTML elements:

• <img is="image-color-tracking">
• <video is="video-color-tracking">
• <canvas is="canvas-color-tracking">

Options

Attribute	Options	Default	Description
target	magenta, yellow, cyan	magenta	Defines the colors to be tracked.
camera	true, false	false	Asks for the user's webcam. Only available when extending <video> elements.

Methods

You can find all getters and setters available in the API Docs. For example:

var video = document.querySelector('video');
video.stop();

Events

Event	Description
track	Triggers when the target is found. Returns an array of regions (x, y, width, height, color).

Object Trackers

There are three different custom elements to use in three different HTML elements:

• <img is="image-object-tracking">
• <video is="video-object-tracking">
• <canvas is="canvas-object-tracking">

Options

Attribute	Options	Default	Description
target	face, mouth, eye	face	Defines the objects to be tracked.
camera	true, false	false	Asks for the user's webcam. Only available when extending <video> elements.

Methods

You can find all getters and setters available in the API Docs. For example:

var video = document.querySelector('video');
video.stop();

Events

Event	Description
track	Triggers when the target is found. Returns an array of regions (x, y, width, height, total).

Development

In order to run it locally you'll need to fetch some dependencies and a basic server setup.

• Install Bower & Grunt:

  $ [sudo] npm install -g bower grunt-cli

• Install local dependencies:

  $ bower install && npm install

• To test your project, start the development server and open http://localhost:8000.

  $ grunt server

• To build the distribution files before releasing a new version.

  $ grunt build

• To provide a live demo, send everything to gh-pages branch.

  $ grunt deploy

Contributing

1. Fork it!
2. Create your feature branch: git checkout -b my-new-feature
3. Commit your changes: git commit -m 'Add some feature'
4. Push to the branch: git push origin my-new-feature
5. Submit a pull request :D

History

For detailed changelog, check Releases.

Team

tracking.js is maintained by these people and a bunch of awesome contributors.

Eduardo Lundgren	Thiago Rocha	Zeno Rocha	Pablo Carvalho	Maira Bello

License

BSD License © Eduardo Lundgren