基于可逆信息隐藏的的无损鲁棒数字水印模型的研究

提出一种新的无损鲁棒数字水印的框架模型,该框架模型中通过鲁棒数字水印算法把水印嵌入进去,然后将可恢复原载体图像的信息再经可逆信息隐藏方法嵌入到该水印图像中,该模型在提取水印和恢复载体图像过程中都不需要原载体图像。基于该框架模型,本文提出一种基于混沌和JPEG压缩格式的无损鲁棒数字水印的算法,实验证明该算法不仅可以使载体图像无损重构,而且能有效的抵抗JPEG压缩、噪声干扰、低通滤波、剪切、旋转等几种典型的攻击,具有较强的鲁棒性,验证了本文所提出无损鲁棒数字水印框架模型的有效性。

Study on framework model of lossless robust digital watermarking based on reversible data hiding

A new framework model of lossless robust digital watermarking is proposed.In this model,the watermark is firstly embedded in the cover image by the robust watermarking method,and the information of recover the cover images is hiding in the watermarked image by the reversible data hiding method,and in the process of watermark extraction and image recovery,the cover image is not needed.Based on the framework model,a lossless robust digital watermarking algorithm is proposed in this paper,experimental results have shown that this new scheme not only can recover the cover image,but also is highly robust against the attack from JPEG compression,noise perturbation,low-pass filtering,cropping,rotation,and feasibility of the proposed framework model of lossless robust digital watermarking is also verified by the experimental result.