PUBLIC MARKS with tags tracking & javascript

Recently, I have seen a couple different JavaScript face detection demos based on the HTML5 getUserMedia API. I even made my own face detection demo based on the HTML5 video tag. Beyond human faces, we also have face detection for cats in JavaScript, nudity detection, and much more with js-objectdetect, a JavaScript library for real-time object detection.

Why would you use the web for motion tracking? Simple. HTML5 Canvas is exciting. Javascript is (pretty) cool. Combined with a lazy afternoon, we can create an ultra simple hand motion tracking and colour recognition system.

headtrackr is a javascript library for real-time face tracking and head tracking, tracking the position of a users head in relation to the computer screen, via a web camera and the webRTC/getUserMedia standard. For a demonstration see this video or try out some of the examples with a laptop that has a camera and a browser that has camera webRTC/getUserMedia support (for instance Opera 12). For an overview of browsers supporting the getUserMedia standard see http://caniuse.com/stream.

Hummingbird lets you see how visitors are interacting with your website in real time, using WebSockets. Hummingbird is built on top of Node.js, a new javascript web toolkit that can handle large amounts of traffic and many concurrent users.

When you copy text from a website and paste it somewhere else, it automatically includes a “Read more: URL” at end of paste

another way of tracking your blog clicks and links.