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- W3101478915 abstract "In this paper, a robust blind image watermarking method is proposed for copyright protection of digital images. This hybrid method relies on combining two well-known transforms that are the discrete Fourier transform (DFT) and the discrete cosine transform (DCT). The motivation behind this combination is to enhance the imperceptibility and the robustness. The imperceptibility requirement is achieved by using magnitudes of DFT coefficients while the robustness improvement is ensured by applying DCT to the DFT coefficients magnitude. The watermark is embedded by modifying the coefficients of the middle band of the DCT using a secret key. The security of the proposed method is enhanced by applying Arnold transform (AT) to the watermark before embedding. Experiments were conducted on natural and textured images. Results show that, compared with state-of-the-art methods, the proposed method is robust to a wide range of attacks while preserving high imperceptibility." @default.
- W3101478915 created "2020-11-23" @default.
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- W3101478915 date "2018-04-05" @default.
- W3101478915 modified "2023-10-11" @default.
- W3101478915 title "Hybrid blind robust image watermarking technique based on DFT-DCT and Arnold transform" @default.
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- W3101478915 doi "https://doi.org/10.1007/s11042-018-5913-9" @default.
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