node‑ambilight is a Node.js application that captures video from a Raspberry Pi camera, processes the frames with OpenCV to extract dominant colors, and streams those colors via WebSockets to an ESP8266 which drives WS2812 (NeoPixel) LED strips for an “ambilight” effect. It’s aimed at hobbyists and makers who want to add dynamic edge lighting to a TV or monitor using a Raspberry Pi, a camera, and inexpensive LED hardware.