A Reversible Steganography Scheme of Secret Image Sharing Based on Cellular Automata and Least Significant Bits Construction

作者：Hu, Wei-Tong; Li, Ming-Chu; Guo, Cheng^*; Yuan, Li-Feng

来源：Mathematical Problems in Engineering, 2015, 2015: 849768.

DOI：10.1155/2015/849768

• VISUAL CRYPTOGRAPHY
• CONTRAST
• IMPROVEMENTS

Secret image sharing schemes have been extensively studied by far. However, there are just a few schemes that can restore both the secret image and the cover image losslessly. These schemes have one or more defects in the following aspects: (1) high computation cost; (2) overflowissue existingwhenmodulus operation is used to restore the cover image and the secret image; (3) part of the cover image being severely modified and the stego images having worse visual quality. In this paper, we combine the methods of least significant bits construction (LSBC) and dynamic embedding with one-dimensional cellular automata to propose a new lossless scheme which solves the above issues and can resist differential attack and support parallel computing. Experimental results also show that this scheme has the merit of big embedding capacity.

• 出版日期2015
• 单位大连理工大学