An Improved Image Authentication Method Using QR Code Watermarking Approach

Liu, Xiaomei; Zhang, Bolin; Wen, Yuchen; Tang, Xin; Su, Haibo

doi:10.1007/978-3-031-06791-4_27

Cited by 1 publication

(1 citation statement)

References 21 publications

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“…Reversible data hiding [1][2][3][4] is a novel technique to achieve convert communication, which enables the cover signal to be completely recovered to its original state once the embedded data are extracted. Because of its lossless nature, reversible data hiding has been widely employed in a lot of high fidelity required scenarios, such as medical images and military communications [5][6][7][8][9]. However, in order to achieve lossless data hiding, the maximum embedding capacity of a certain cover signal is significantly lower than that achieved by conventional data hiding algorithms, which usually leads to poor imperceptibility under the same amount of secret data embedded [10,11].…”

Section: Introductionmentioning

confidence: 99%

Weighted Average-Based Complexity Calculation in Block Selection Oriented Reversible Data Hiding

Tang

Zhou

Cheng

et al. 2022

Security and Communication Networks

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Complexity of blocks is one of the key factors to influence the performance of reversible data hiding. By embedding data into blocks with smaller complexity, the invalid shifting in pixel value ordering (PVO) based reversible data hiding is largely reduced, thus increasing the imperceptibility. However, the existing techniques are not always accurate in complexity calculation, since context pixels are usually treated equally. As a result, a great number of invalid pixels are assigned too large a weight in complexity calculation, which inevitably affects the precision. In this paper, we propose a weighted average based novel strategy in complexity calculation. In this scheme, we calculate the weight of a certain context pixel with the help of its adjacent neighbors, which ensures the one in a smooth area is assigned a larger weight, and otherwise the opposite. Experimental results show that invalid shifting is largely reduced, thus our scheme is better in imperceptibility compared with the state of the art and has potential application in a lot of fields such as medical imaging.

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