A transform domain watermarking technique which is based on a new encoding scheme referred to as scaled bin encoding which encodes a message in a set of transform coefficients by modifying their values in a way that preserves high image quality (i.e., low distortion levels) and adapts to expected noise...http://www.google.fr/patents/US6721439?utm_source=gb-gplus-shareBrevet US6721439 - Method and system of watermarking digital data using scaled bin encoding and maximum likelihood decoding
Method and system of watermarking digital data using scaled bin encoding and ...