| 摘要 |
The invention relates to a method of watermarking a binary stream resulting from the encoding of a set of coefficients comprising at least one coefficient encoded by predictive coding, called predictively coded coefficient. The method comprises the steps of: a) identifying, in said binary stream, a first binary word representing said predictively coded coefficient; b) computing a modified coefficient from said predictively coded coefficient on the basis of at least one watermarking bit; c) encoding said modified coefficient into a second binary word; and d) replacing in said binary stream said first binary word with said second binary word. ® KIPO & WIPO 2009 |
