Constructing HVS-Based Optimal Substitution Matrix Using Enhanced Differential Evolution
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-05
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Least significant bit (LSB) substitution is a method of information hiding.
The secret message is embedded into the last k bits of a cover-image in order to evade the notice of hackers.
The security and stego-image quality are two main limitations of the LSB substitution method.
Therefore, some researchers have proposed an LSB substitution matrix to address these two issues.
Finding the optimal LSB substitution matrix can be conceptualized as a problem of combinatorial optimization.
In this paper, we adopt a different heuristic method based on other researchers’ method, called enhanced differential evolution (EDE), to construct an optimal LSB substitution matrix.
Differing from other researchers, we adopt an HVS-based measurement as a fitness function and embed the secret by modifying the pixel to a closest value rather than simply substituting the LSBs.
Our scheme extracts the secret by modular operations as simple LSB substitution does.
The experimental results show that the proposed embedding algorithm indeed improves imperceptibility of stego-images substantially.
American Psychological Association (APA)
Tu, Shu-Fen& Hsu, Ching-Sheng. 2013. Constructing HVS-Based Optimal Substitution Matrix Using Enhanced Differential Evolution. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1010850
Modern Language Association (MLA)
Tu, Shu-Fen& Hsu, Ching-Sheng. Constructing HVS-Based Optimal Substitution Matrix Using Enhanced Differential Evolution. Mathematical Problems in Engineering No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-1010850
American Medical Association (AMA)
Tu, Shu-Fen& Hsu, Ching-Sheng. Constructing HVS-Based Optimal Substitution Matrix Using Enhanced Differential Evolution. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1010850
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1010850