Dictionary-Based Data Hiding Using Image Hashing Strategy

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題名:	Dictionary-Based Data Hiding Using Image Hashing Strategy
作者:	Qin, Chuan;Qin, Chuan;張真誠;Chang, Chin-Chen;Tso, Pei-Ling;Tsou, Pei-Ling
貢獻者:	資訊工程學系
關鍵詞:	Data hiding;Dictionary;Image hashing;Vector quantization
日期:	2013-02
上傳時間:	2013-07-11 06:18:18 (UTC+0)
摘要:	This paper proposes a novel data hiding framework based on image hashing strategy. First, the best-matching blocks for each cover image block are searched in the existing database, which can be generated by the codebook of vector quantization technique. Then, a dictionary consisting of diﬀerent versions for each cover block is constructed by a set of content-preserving manipulations, and each version is assigned with a unique binary representation. According to the secret data hidden for each block, corresponding versions of the block in the dictionary are chosen to substitute the cover block and form the stego image. Due to the properties of robustness and anti-collision of image hashing, the secret data can be extracted correctly by comparing the stego block with the blocks in the reconstructed dictionary. The experimental results show the eﬀectiveness and exibility of the proposed framework.
關聯:	International Journal of Innovative Computing, Information and Control, V.9 N.2 : 599-610.
顯示於類別:	[資訊工程學系] 期刊論文

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