发表刊物：Journal of Electronic Imaging
关键字：Watemarking scheme
摘要：Digital watermarking and data hiding are important tools for digital rights protection of media data. Spread spectrum (SS)-based watermarking and data-hiding approaches are popular due to their outstanding robustness, but their security might not be sufficient. To improve the security of SS, a SS-based image data-hiding approach is proposed by encrypting the discrete cosine transform coefficients of the host image with the piecewise linear chaotic map, before the operation of watermark embedding. To evaluate the performance of the proposed approach, simulations and analyses of its robustness and security are carried out. The average bit-error-rate values on 100 real images from the Berkeley segmentation dataset under the JPEG compression, additive Gaussian noise, salt and pepper noise, and cropping attacks are reported. Experimental results show that the proposed approach can maintain the high robustness of traditional SS schemes and, meanwhile, also improve the security. The proposed approach can extend the key space of traditional SS schemes from 1019 to 1047 and thus can resist brute-force attack and unauthorized detection watermark attack.
备注：, 2013, 22(4): .
第一作者：Xiaoqiang Zhang
合写作者：Z. Jane Wang
论文类型：期刊论文
卷号：22
期号：4
页面范围：1-10
是否译文：否
发表时间：2013-10-01
收录刊物：SCI
发布期刊链接：https://doi.org/10.1117/1.JEI.22.4.043029