Robust image watermarking against JPEG recompression for websites

An, Ning-Yu; Liang, Xiao; Zhang, Xiaojian

doi:10.1117/12.2600846

Cited by 1 publication

(2 citation statements)

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“…The principle issues to be addressed are the distribution, tampering, and illegal copying of unprotected material, which may result in the lack of accountability for the perpetrators 4 or the misleading of justice 5 . To address these issues, digital watermarking has appeared as an alternative solution to encryption 6‐10 . In fact, encryption fails to protect contents in a hostile environment, whereas once they are decrypted by a malicious person the original issues will rise again.…”

Section: Introductionmentioning

confidence: 99%

“…5 To address these issues, digital watermarking has appeared as an alternative solution to encryption. [6][7][8][9][10] In fact, encryption fails to protect contents in a hostile environment, whereas once they are decrypted by a malicious person the original issues will rise again. However, watermarking shields media (i.e., image, audio, or video) by embedding, generally, a non-removable watermark serving to protect the media or trace back the leaker.…”

Section: Introductionmentioning

confidence: 99%

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Robust image watermarking in DCT domain using optimal inter‐block difference

Kricha

Sakly

2023

Concurrency and Computation

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SummaryRobust watermarking provides valuable solutions to protect the copyright and secure digital images. In this paper, a robust and transparent watermarking scheme in the discrete cosine transform (DCT) domain is presented. The watermark is embedded into the difference of two adjacent DCT coefficients located at the same frequency. The embedding process involves optimal selection of adjacent blocks and DCT coefficients positions. For a given DCT block, the optimal selection is to find the coefficient with the lowest DCT frequency that requires the minimal variation to represent the target watermark bit. To insert the watermark, a new quantization index modulation (QIM) based method with irregular distance between continuous quantizers is employed. The performance of the proposed scheme was extensively evaluated using 12 benchmark images and a total of more than 90 attacks per image grouped into nine attack types including JPEG compression, filtering and noise contamination. Furthermore, robustness comparison with state‐of‐the‐art works was conducted, and the results demonstrate the superiority of the proposed scheme in terms of imperceptibility and robustness.

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Section: Introductionmentioning

confidence: 99%