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Image sharing scheme based on discrete fractional random transform |
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| Authors: | Zhengjun Liu Shutian Liu |
| Affiliation: | a Department of Physics, Harbin Institute of Technology, Harbin 150001, PR China b Department of Automation Measurement and Control Engineering, Harbin Institute of Technology, Harbin 150001, PR China c Department of Physics, COMSATS Institute of Information Technology, Lahore 54000, Pakistan |
| Abstract: | We present a novel image sharing algorithm based on the discrete fractional random transform (DFRNT). The secret image is shared into several shadow images in the DFRNT domain together with some noise images as the encryption keys to increase the security. The decryption only requires a part of shadow images and therefore is independent of those noise images. The (t,n) threshold sharing scheme can be implemented completely by the proposed algorithm. The numerical simulations have demonstrated the effectiveness of this image sharing scheme. |
| Keywords: | Image encryption Discrete fractional random transform Image sharing Cryptography |
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