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    ASIA unversity > 資訊學院 > 資訊工程學系 > 會議論文 >  Item 310904400/8834

    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/8834

    Title: Adaptive steganography-based optical color image cryptosystems
    Authors: Chuang, Cheng-Hung;Lin, Guo-Shiang
    Contributors: Department of Computer Science and Information Engineering
    Keywords: Color;Image coding;Military photography;Color images;Cryptosystems;Data embedding;Double random-phase encoding;Low distortion;Random phase masks;Session key;Steganography;Three channel
    Date: 2009
    Issue Date: 2010-04-08 20:22:12 (UTC+8)
    Publisher: Asia University
    Abstract: In this paper, an optical cryptosystem with adaptive steganography is proposed for color image encryption and decryption. The optical cryptosystem employs a double random phase encoding algorithm to encrypt and decrypt color images. The color image is first separated into three channels: red, green, and blue. Each channel is encrypted by two random phase masks generated from session keys. For higher security, an asymmetric method is applied to cipher these session keys. The ciphered data produced by the asymmetric method is then embedded into the encrypted color image by a contentdependent and low distortion data embedding technique. The key delivery is accomplished by hiding ciphered data into the encrypted color image with a specific hiding sequence generated by the zero-LSB sorting technique. Experimental results show that the proposed adaptive steganography-based cryptosystem has a good performance when it is applied to color images. ©2009 IEEE.
    Relation: Proceedings - IEEE International Symposium on Circuits and Systems :1668-1672
    Appears in Collections:[資訊工程學系] 會議論文

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