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Robust Image Watermarking Based On Quantization Index Modulation in the DCT Domain
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摘要
The main drawback of the traditional quantization index modulation (QIM) watermarking is its extreme sensitivity to scaling attack. Due to scaling have a little effect on Discrete Cosine Transform (DCT) coefficients, this paper proposed a novel robust image watermarking algorithm based on QIM in the DCT domain. In the presented scheme, the medium and low frequency DCT coefficients of host signal are divided into two parts, then the watermark bits are embedded by quantizing ratio of l_p-norm of the two parts. Experimental results confirm the superiority of the proposed algorithm against common types attacks in comparison with the recently proposed scheme.
延伸閱讀
- 陸映相（2021）。A Blind Image Watermarking Algorithm in DCT Domain Using Mixed Modulation and Metaheuristic Optimization〔碩士論文，國立宜蘭大學〕。華藝線上圖書館。https://doi.org/10.6820/niu202100030
- 蔡豐懋（2014）。Image watermarking based on discrete fractional Fourier transforms〔碩士論文，中原大學〕。華藝線上圖書館。https://doi.org/10.6840/cycu201400870
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