Adaptive image watermarking technique based on human visual system
Yuan Liu · Jisuanji yingyong yanjiu · 2011
In order to improve the capacity and self-adaptive control of embedding intensity,this paper proposed a new method for embedding information into DC coefficients of DCT-domain,which combined noise visibility function(NVF) and human visual system which was sensitive to texture features.The algorithm could control the embedding intensity self-adaptively,according to block complexity of images computed using NVF.Experimental results show that the proposed algorithm improves the capacity and self-adaptive control of embedding intensity,and to some extent,avoids the block effect caused by the embedding information.Additionally,it is robust against common image processes and attacks.