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Information 2017, 8(3), 103; doi:10.3390/info8030103

A Novel STDM Watermarking Using Visual Saliency-Based JND Model

1
School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
2
School of Information Science and Engineering, Shandong Normal University, Jinan 250014, China
3
Institute of Data Science and Technology, Shandong Normal University, Jinan 250014, China
*
Author to whom correspondence should be addressed.
Received: 27 July 2017 / Revised: 18 August 2017 / Accepted: 23 August 2017 / Published: 25 August 2017
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Abstract

The just noticeable distortion (JND) model plays an important role in measuring the visual visibility for spread transform dither modulation (STDM) watermarking. However, the existing JND model characterizes the suprathreshold distortions with an equal saliency level. Visual saliency (VS) has been widely studied by psychologists and computer scientists during the last decade, where the distortions are more likely to be noticeable to any viewer. With this consideration, we proposed a novel STDM watermarking method for a monochrome image by exploiting a visual saliency-based JND model. In our proposed JND model, a simple VS model is employed as a feature to reflect the importance of a local region and compute the final JND map. Extensive experiments performed on the classic image databases demonstrate that the proposed watermarking scheme works better in terms of the robustness than other related methods. View Full-Text
Keywords: watermarking; JND; STDM; visual saliency watermarking; JND; STDM; visual saliency
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Wang, C.; Zhang, T.; Wan, W.; Han, X.; Xu, M. A Novel STDM Watermarking Using Visual Saliency-Based JND Model. Information 2017, 8, 103.

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