4 March 2015 A combined image steganographic method using multi-way pixel-value differencing
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Proceedings Volume 9443, Sixth International Conference on Graphic and Image Processing (ICGIP 2014); 944319 (2015) https://doi.org/10.1117/12.2179107
Event: Sixth International Conference on Graphic and Image Processing (ICGIP 2014), 2014, Beijing, China
Abstract
In order to increase the hiding capacity and provide visually imperceptible changes of an image, a multi-way pixelvalue differencing scheme is proposed in this paper. A threshold value is designated to distinguish between edge-like and smooth blocks. The smooth blocks adopt the original tri-way pixel-value differencing (TPVD) method whereas the edgelike blocks apply the proposed mode selection algorithm to further determine the data embedding way by utilizing horizontal or vertical edges. In addition, a further altering process is conducted to achieve the original partitioning results after the embedding procedure so that the stego-images can extract secret data without the participation of the original cover images. The experimental results show that the proposed method can embed a large hiding capacity in a cover image and the image quality remains high.
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Hsiao-Shan Huang, Hsiao-Shan Huang, } "A combined image steganographic method using multi-way pixel-value differencing", Proc. SPIE 9443, Sixth International Conference on Graphic and Image Processing (ICGIP 2014), 944319 (4 March 2015); doi: 10.1117/12.2179107; https://doi.org/10.1117/12.2179107
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