Authenticating Super-Resolved Image and Enhancing Its PSNR Using Watermark

Raval, Mehul S.; Joshi, Vaibhav B.; Gupta, Dhruv; Kher, Shubhalaxmi

doi:10.1109/ssci.2015.77

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2021

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“…) To measure the imperceptibility of the watermarked model, the Mean Square Error (MSE) metric was used and computed as in equation ( 5) [21].…”

Section: Resultsmentioning

confidence: 99%

Watermarking of a 3D Model based on Wavelet Transform

Laftah

2021

eijs

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In the last decade, 3D models gained interest in many applications, such as games, the medical field, and manufacture. It is necessary to protect these models from unauthorized copying, distribution, and editing. Digital watermarking is the best way to solve this problem. This paper introduces a robust watermarking method by embedding the watermark in the low-frequency domain, then selecting the coarsest level for embedding the watermark based on the strength factor. The invisibility of the watermark for the proposed algorithm is tested by using different measurements, such as HD and PSNR. The robustness was tested by using different types of attacks; the correlation coefficient was applied for the evaluation of the extracted watermark. From the results, it is clear that the proposed algorithm achieved good invisibility and robustness against the geometrical attack and the added noise.

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“…) To measure the imperceptibility of the watermarked model, the Mean Square Error (MSE) metric was used and computed as in equation ( 5) [21].…”

Section: Resultsmentioning

confidence: 99%