VLSI based Design of an Efficient Hybrid Watermarking Scheme for Multimedia Content Protection

Nanammal, V.; Abirami, B.; Venugopalakrishnan, J.

doi:10.17485/ijst/2015/v8i19/71642

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“…According to the assumption of additive white Gaussian noise model, the existing watermark algorithms adopt linear correlation mostly to detect watermark [1] , it is only superior for the watermark carrier signal obey Gaussian distribution [2] ; As Gaussian assumption is unreasonable in the additive white Gaussian noise model and transformation domain method can distribute the watermark information to the whole carriers. In 1985 Cox etc.…”

Section: Introductionmentioning

confidence: 99%

A Novel Blind Image Watermark Detection Algorithm Based on Generalized Gaussian Distribution

Li¹,

Wang²

2018

dtcse

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Abstract. The technique of blind watermark is one of key technology for copyright protecting. Applying Generalized Gaussian Distribution to statistically model the Alternating Current coefficient of discrete cosine transform, an adaptive blind watermark detection algorithm is proposed on the basis of sign detector and linear correlate detector and its probability efficiency is deduced. The experimental results show that the performance of the proposed detector is better than that of linear correlate detector.

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Section: Introductionmentioning

confidence: 99%