Improved watermark detection based on similarity diagrams

摘要

A great number of digital watermarking approaches do exist, but it seems that transform domain watermarking dominates the field. The detection of such schemes is based on thresholds extracted by statistic rules on which the method relies. In this work, we propose an improved detector for such techniques. It extends the traditional schemes by taking into account the similarity diagrams that are widely used until now as an evidence of the watermarks existence and uniqueness.