He had already built a large POV display and now uses a DSLR with long exposure to create light paintings (translated). The Arduino-powered display is built from a strip of 35 RGB LEDs.

Off the shelf RGB colour pickers allowing you to extract and objects RGB values can range from a few hundred dollars to thousands depending on your needs.

Description: In this project I did a Christmas jumper with rgb LEDs, this can also be a creative clothing project or whatever you want. It uses rgb LEDs that are controlled by an Arduino-based ...