Visinode programming tutorial video.
It shows how to create a web application using javascript and visifront.
This example shows how to apply a color-sensitive javascript element to detect events on a video or a live camera.
In this video, the color-sensitive eye evolves into a watchdog web application tailored to smartphones.
Using a mobile phone, the user can set the conditions that trigger an alarm, or simply log the time and date when the preset conditions are breached.