Double random-phase encryption based on discrete quaternion fourier-transforms
| Autor: | Hongchen Zhai, Xiaolei Wang, Zhilei Li, Qi Ge |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Computer science
business.industry ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Encryption system Encryption Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials symbols.namesake Fourier transform Robustness (computer science) Computer Science::Multimedia symbols Electrical and Electronic Engineering business Quaternion Algorithm Computer Science::Cryptography and Security |
| Zdroj: | Optik. 122:1856-1859 |
| ISSN: | 0030-4026 |
| DOI: | 10.1016/j.ijleo.2010.11.016 |
| Popis: | In this paper, a new method for color-image encryption using Discrete Quaternion Fourier-Transforms (DQFT) combined with double random-phase encryption is reported, by which color images can be processed as single channel architecture, instead of as separated color components in three channels, so that the complexity of the encryption system can be effectively reduced without any reduction of its security. The principle of both encryption and decryption is detailed and the noise robustness of the system has been examined experimentally. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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