基于重嵌入的鲁棒可逆水印算法

摘要

针对鲁棒可逆水印算法的研究大都致力于提升其鲁棒性,而忽略了对算法嵌入容量的考虑.为此,在综合考虑算法的鲁棒性和嵌入容量的基础上,提出了一种重嵌入的鲁棒可逆水印算法,该算法能保证统计量之间的独立性,即选取两个互不影响的鲁棒统计量进行平移以完成水印信息嵌入.实验结果表明,所提出的基于重嵌入思想的鲁棒可逆水印算法在保证鲁棒性的前提下,可以有效提高算法的嵌入容量.%Most existing robust reversible watermarking methods only focus on robustness without taking into account the embedding capacity.In this paper,to improve embedding capacity,a robust reversible watermarking scheme based on double embedding is proposed.Two independent robust statistics are shifted to embed watermarking to increase capacity while robustness is preserved.Experimental results show that the proposed algorithm is promising.