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Among the many attacks against watermarked data, the gain attack is less supported with countermeasures. The effectiveness of this attack becomes more evident in quantization-based embedding algorithms such as Dither Modulation (DM). In this paper, the general solution for both block and sample type DM schemes that are robust against gain attacks is considered. Among the solutions, we concentrate...
Quantization index modulation (QIM) algorithm is one of the most important blind detection watermarking algorithm. The adaptive quantization index modulation (AQIM), proposed by I. J. Cox, calculates the quantization step according to the Watsonpsilas perceptual model, and makes the embedding steps vary according to the coefficients to be quantized adaptively. It has better reliability and robustness...
One of the threats to watermarking security is unauthorized removal. In this paper, a framework based on extended Trusted Computer Platform to solve this problem was presented. Using Trusted Computing Platform could enhance the security of watermarking detection. The TPM as a supervisor that control the watermark detection program and only the legal one can use the secret knowledge, that is, this...
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