A method of inserting a watermarking signal (w) in a set (X) of coefficients (Xl) representing a digital image (I), in which at least one subset of coefficients is modified by said watermarking signal (w), comprises, for each representative coefficient (Xl) to be modified, a step of determining a neighborhood...http://www.google.ca/patents/US20010031064?utm_source=gb-gplus-sharePatent US20010031064 - Method and device for inserting a watermarking signal in an image
