PUBLIC MARKS with tags canvas & video

En combinant les possibilités de l'élément video avec celles de l'élément canvas, vous pouvez manipuler les données vidéos en temps réel, et y incorporer une variété d'effet visuels. Ce tutoriel, adapté de ce blog par Paul Rouget, explique comment réaliser un travail d'incrustation chroma-keying (fond vert) en utilisant JavaScript.

The "Design" page for iPhone 5 includes an auto-playing video of the device being unlocked. But there's no video element, just a canvas. And if you check the "Network" tab of the inspector, you won't find any video there either. But you will find some strange JPEG images:

You’ve already learned about the video and canvas elements, but did you know that they were designed to be used together? In fact, the two elements are absolutely wondrous when you combine them! I’m going to show off a few super-simple demos using these two elements, which I hope will prompt cool future projects from you fellow web authors. (All of these demos work in every modern browser except Internet Explorer.)

By combining the capabilities of the video element with a canvas, you can manipulate video data in real time to incorporate a variety of visual effects to the video being displayed. This article, adapted from this blog post by Paul Rouget, demonstrates how to perform chroma-keying (also known as the "green screen effect") using JavaScript code.

Le même effet d'une TV Philips en pur JavaScript. Nécessite un navigateur moderne...

Simulation de l'éclairage d'ambiance d'écrans comme le Philips Cinema 21:9 à coup de canvas et JavaScript.

an educational Introduction to HTML 5 video that goes over many of the major aspects of this new standard