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- W2142959092 abstract "A simple watermarking scheme based on the discrete cosine transform (DCT) is proposed. To increase the hidden capacity while maintaining the robustness of the proposed method, the authors use quotient-embedding algorithm to hide the secret message in the selected low-frequency coefficients of a DCT block. Simulations show that the stego-images generated by the proposed method do robustness against image processing operations, such as JPEG2000, JPEG, cropping, processing the negative, quantization, low-pass filtering, noise additions, and so on. Moreover, the PSNR is not bad while the resultant perceived quality and hiding capability are good." @default.
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- W2142959092 date "2008-01-01" @default.
- W2142959092 modified "2023-09-25" @default.
- W2142959092 title "DCT-Based Watermarking By Quotient-Embedding Algorithm" @default.
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- W2142959092 doi "https://doi.org/10.1109/icicic.2008.209" @default.
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