See also: Watermark, Ad-ID, Metadata, Program Code, Fragile Watermarking, Robust Watermarking

CIMM DEFINITION: The process of embedding information into a digital signal in a way that is difficult to remove. The signal may be audio, pictures or video, for example. If the signal is copied, then the information is also carried in the copy, so it prevents copyright infringement. A signal may carry several different watermarks at the same time.