Haar-Wavelet-Based Just Noticeable Distortion Model for Transparent Watermark
Joint Authors
Ko, Lu-Ting
Sung, Tze-Yun
Chen, Jwu-E.
Hsin, Hsi-Chin
Shieh, Yaw-Shih
Source
Mathematical Problems in Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-07-27
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Watermark transparency is required mainly for copyright protection.
Based on the characteristics of human visual system, the just noticeable distortion (JND) can be used to verify the transparency requirement.
More specifically, any watermarks whose intensities are less than the JND values of an image can be added without degrading the visual quality.
It takes extensive experimentations for an appropriate JND model.
Motivated by the texture masking effect and the spatial masking effect, which are key factors of JND, Chou and Li (1995) proposed the well-known full-band JND model for the transparent watermark applications.
In this paper, we propose a novel JND model based on discrete wavelet transform.
Experimental results show that the performance of the proposed JND model is comparable to that of the full-band JND model.
However, it has the advantage of saving a lot of computation time; the speed is about 6 times faster than that of the full-band JND model.
American Psychological Association (APA)
Ko, Lu-Ting& Chen, Jwu-E.& Hsin, Hsi-Chin& Shieh, Yaw-Shih& Sung, Tze-Yun. 2011. Haar-Wavelet-Based Just Noticeable Distortion Model for Transparent Watermark. Mathematical Problems in Engineering،Vol. 2012, no. 2012, pp.1-14.
https://search.emarefa.net/detail/BIM-1001792
Modern Language Association (MLA)
Ko, Lu-Ting…[et al.]. Haar-Wavelet-Based Just Noticeable Distortion Model for Transparent Watermark. Mathematical Problems in Engineering No. 2012 (2012), pp.1-14.
https://search.emarefa.net/detail/BIM-1001792
American Medical Association (AMA)
Ko, Lu-Ting& Chen, Jwu-E.& Hsin, Hsi-Chin& Shieh, Yaw-Shih& Sung, Tze-Yun. Haar-Wavelet-Based Just Noticeable Distortion Model for Transparent Watermark. Mathematical Problems in Engineering. 2011. Vol. 2012, no. 2012, pp.1-14.
https://search.emarefa.net/detail/BIM-1001792
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1001792