Blind Photograph Watermarking with Robust Defocus-Based JND Model
Joint Authors
Wang, Chunxing
Li, Xiaoxiao
Xu, Meiling
Wang, Jun
Wan, Wenbo
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-12-01
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Information Technology and Computer Science
Abstract EN
Just noticeable distortion (JND) is widely employed to describe the perception redundancy in the quantization-based watermarking framework.
However, the existing JND models are generally constructed to treat every region of the photograph with an equal focus level, whereas the defocus effect has never been considered.
In this paper, the defocus feature, which can portray the aesthetic emphasis in the photograph, is provided to improve the perceptual JND model.
Firstly, two indicators which consider the block energy in the defocus measurement (DM) are proposed.
Then, the defocus feature map (DFM) is obtained by integrating the influence of the circumambient blocks, and it is applied to the proposed JND contrast masking (CM) processing.
In this way, a new blind photograph watermarking method, with emphasis on defocus-JND estimation combined with the proposed CM, is presented.
Simulations show that the proposed JND is more suitable for watermarking framework than some exiting JND models, and the proposed watermarking scheme with the improved defocus-based JND model has superior robustness compared with some watermarking schemes.
American Psychological Association (APA)
Wang, Chunxing& Li, Xiaoxiao& Xu, Meiling& Wang, Jun& Wan, Wenbo. 2020. Blind Photograph Watermarking with Robust Defocus-Based JND Model. Wireless Communications and Mobile Computing،Vol. 2020, no. 2020, pp.1-17.
https://search.emarefa.net/detail/BIM-1214912
Modern Language Association (MLA)
Wang, Chunxing…[et al.]. Blind Photograph Watermarking with Robust Defocus-Based JND Model. Wireless Communications and Mobile Computing No. 2020 (2020), pp.1-17.
https://search.emarefa.net/detail/BIM-1214912
American Medical Association (AMA)
Wang, Chunxing& Li, Xiaoxiao& Xu, Meiling& Wang, Jun& Wan, Wenbo. Blind Photograph Watermarking with Robust Defocus-Based JND Model. Wireless Communications and Mobile Computing. 2020. Vol. 2020, no. 2020, pp.1-17.
https://search.emarefa.net/detail/BIM-1214912
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1214912