Robust and optimum color image watermarking method based on a combination of DWT and DCT

被引:10
作者
Abadi, Roxana Yahya [1 ]
Moallem, Payman [1 ]
机构
[1] Univ Isfahan, Fac Engn, Dept Elect Engn, Esfahan, Iran
来源
OPTIK | 2022年 / 261卷
关键词
Color image watermarking; DCT; DWT; Robustness; AWGN; SSIM; LL sub-band; DOMAIN; TRANSFORM; ALGORITHM;
D O I
10.1016/j.ijleo.2022.169146
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A hybrid and robust digital image watermarking is suggested by using advantages of both fre-quency domain and wavelet domain. In this method, the most suitable color component of the host image and the most efficient wavelet sub-band are chosen, concluding from the compre-hensive experiments. In this paper, three parallel stages are used to embed and extract the watermark message. After transforming color component of the host image into the wavelet domain, some preprocessing with Discrete Cosines Transformers are applied, and then the watermark message is embedded into the best range by using a secret key. By detecting the rank of constructed detection matrices and voting among three output bits, the watermark bit is extracted. Simulation results demonstrate that the proposed method, besides the high robustness against Gaussian noise-based attacks especially AWGN, has performed well in imperceptibility and embedding capacity factors.
引用
收藏
页数:17
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