![](/images/graphics-bg.png)
Image Watermark Based on Extended Shearlet and Insertion Using the Largest Information Entropy on Horizontal Cone
Joint Authors
Luxi, Huang
Meiling, Sun
Jian, Jia
Fan, Han
Shan, Liu
Jian, Zhao
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-04
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Extended discrete shearlet provides a directional multiresolution decomposition.
It has been mathematically shown that extended discrete shearlet is a more efficient representation for the signals containing distributed discontinuities such as edges, compared to discrete wavelet.
Multiresolution analyses such as curvelet and ridgelet share similar properties, yet their directional representations are significantly different from that of extended discrete shearlet.
Taking advantage of the unique properties of directional representation of extended discrete shearlet, we develop an image watermark algorithm based on the largest information entropy.
In proposed algorithm, firstly, 1-level extended discrete shearlet transform decomposes the test image into directional components on horizontal cone; each directional component reflects directional features and textured features differently.
Next, the directional component whose information entropy is the highest is selected to carry watermark.
Compared with related algorithms based on DWT and DCT, the proposed algorithm tends to obtain preferable invisibility when it is robust against common attacks.
American Psychological Association (APA)
Jian, Zhao& Meiling, Sun& Jian, Jia& Luxi, Huang& Fan, Han& Shan, Liu. 2015. Image Watermark Based on Extended Shearlet and Insertion Using the Largest Information Entropy on Horizontal Cone. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1073857
Modern Language Association (MLA)
Jian, Zhao…[et al.]. Image Watermark Based on Extended Shearlet and Insertion Using the Largest Information Entropy on Horizontal Cone. Mathematical Problems in Engineering No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1073857
American Medical Association (AMA)
Jian, Zhao& Meiling, Sun& Jian, Jia& Luxi, Huang& Fan, Han& Shan, Liu. Image Watermark Based on Extended Shearlet and Insertion Using the Largest Information Entropy on Horizontal Cone. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1073857
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1073857