Abstract: This paper presents a kind of improved algorithm of self-adaptive digital watermarking based on wavelet set decomposition.First, the algorithm pre-processes and makes the watermarking image into confusion, then it decomposes the host image into three layers with wavelet set transform.The authors present a kind of inlaid algorithm of self-adaptive digital watermarking based on Human Visual Sense (HVS) Property and Wavelet Set Group (WSG) in watermarking inlaid algorithm of the paper.The algorithm introduces HVS and multi-resolution ratio inlaid technique based on WSG so that better anti-offensive robustness property and visual sense effect are achieved.

Key words: wavelet set decomposition transform, copyright protection, human visual sense property, image processing, digital watermarking