Here is a new video interface for the Arduino link here
Overlay text and graphics onto a video signal from a camera, DVR, DVD player, VCR or any other source of composite video.
Capture low-res video image frames for display or video processing. Give your Arduino the gift of sight!
Perform object detection for computer vision projects.
Decode closed captioning or XDS (extended data services) data embedded in television broadcasts.
Works with NTSC (North America) or PAL (rest of the world) television standards.
Uses digital pins 2, 6, 7, 8, and optionally 9. Uses analog pin 2."