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- Title
Fault-Tolerant Visual Secret Sharing Schemes without Pixel Expansion.
- Authors
Justie Su-Tzu Juan; Yung-Chang Chen; Song Guo
- Abstract
Visual cryptography encrypts a secret image into two meaningless random images, called shares, such that it can be decrypted by human vision without any calculations. However, there would be problems in alignment when these two shares are staked by hand in practice. Therefore, this paper presents the fault-tolerant schemes of stacking two shares that are acquired from secret image encryption without pixel expansion. The main idea of these schemes is to combine several pixels as a unit and then to encrypt each unit into a specific combination of pixels. Both theoretical analysis and simulation results demonstrate the effectiveness and practicality of the proposed schemes.
- Subjects
VISUAL cryptography; FAULT-tolerant computing; PIXELS
- Publication
Applied Sciences (2076-3417), 2016, Vol 6, Issue 1, p18
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app6010018