Title :
Data Hiding in Images by Adaptive LSB Substitution Based on the Pixel-Value Differencing
Author :
Li, Suk-Ling ; Leung, Kai-Chi ; Cheng, L.M. ; Chan, Chi-Kwong
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon
fDate :
Aug. 30 2006-Sept. 1 2006
Abstract :
In this paper, the steganographic method proposed by Chang and Tseng (C.C. Chang et al., 2004) is reviewed and the problem related to the Chang-Tseng scheme is described. A modified scheme is proposed to overcome the problem in which the embedded data cannot be extracted correctly. Moreover, in order to enhance the image quality of the stego-image and enlarge the embedding capacity of the host-image, a novel method to embed secret data into the host-image by adaptive LSB substitution based on the pixel-value differencing is proposed. Experimental results show that both of the embedding capacity and the image quality of the stego-image outperforms than the Chang-Tseng scheme. In addition, the embedded confidential information can be obtained properly from the stego-image without the assistance of the host-image
Keywords :
cryptography; data encapsulation; image coding; Chang-Tseng scheme; adaptive LSB substitution; image data hiding; pixel-value differencing; steganographic method; stego-image; Data communication; Data encapsulation; Data mining; Data security; Equations; Image quality; Information security; Internet; Pixel; Steganography;
Conference_Titel :
Innovative Computing, Information and Control, 2006. ICICIC '06. First International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7695-2616-0
DOI :
10.1109/ICICIC.2006.431
