NDLI: Quaternion gyrator transform and its application to color image encryption

Content Provider	IEEE Xplore Digital Library
Author	Zhuhong Shao Jiasong Wu Coatrieux, J.L. Coatrieux, G. Huazhong Shu
Copyright Year	2013
Description	Author affiliation: Inst. Mines-Telecom, Telecom Bretagne, Brest, France (Coatrieux, G.) \|\| Lab. of Image Sci. & Technol., Southeast Univ., Nanjing, China (Zhuhong Shao; Jiasong Wu; Huazhong Shu) \|\| INSERM, Rennes, France (Coatrieux, J.L.)
Abstract	The gyrator transform has been proposed in optics a few years ago. By using the theory of quaternion numbers, this paper presents the quaternion gyrator transform (QGT). It is shown that the QGT can be computed via the left-side type of quaternion Fourier transforms. The new transform is applied to color image encryption for validation, where the rotation angles are used as encryption keys making it more secure compared to a recent method using discrete quaternion Fourier transforms (DQFTs). Experimental results show that the proposed encryption algorithm for color image performs as well as the DQFTs method in terms of noise robustness, so that it could be a useful tool for color image encryption.
Starting Page	4579
Ending Page	4582
File Size	482529
Page Count	4
File Format	PDF
ISBN	9781479923410
DOI	10.1109/ICIP.2013.6738943
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-15
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	encryption Quaternion gyrator transform color image
Content Type	Text
Resource Type	Article

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