L.M. Cheng, City University of Hong Kong, Hong Kong
In this paper, the steganographic method proposed by Chang and Tseng [1] 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 stegoimage 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. 1. Introduction
Citation:
Suk-Ling Li, Kai-Chi Leung, L.M. Cheng, Chi-Kwong Chan, "Data Hiding in Images by Adaptive LSB Substitution Based on the Pixel-Value Differencing," icicic, vol. 3, pp.58-61, First International Conference on Innovative Computing, Information and Control - Volume III (ICICIC'06), 2006
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