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Color image encryption using double random phase encoding

✍ Scribed by Shuqun Zhang; Mohammad A. Karim

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
352 KB
Volume
21
Category
Article
ISSN
0895-2477

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✦ Synopsis

A new encryption technique is proposed to encrypt color images using existing optical encryption systems for gray-scale images. The color images are con¨erted to their indexed image formats before they are encoded. At the decryption end, the color images are reco¨ered by con¨erting the decrypted indexed images back to their RGB formats. The proposed single-channel color image encryption method is more compact and robust than the multichannels methods. Since color information is added to the shape information, better ¨erification performance can be achie¨ed in optical security systems.

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