A Novel(n,n)Secret Image Sharing Scheme Based on Sudoku

作     者：Zhi-Hui Wang Cheng Guo Chin-Chen Chang 

作者机构：the School of SoftwareDalian University of Technology the Department of Computer ScienceNational Tsing Hua University the Department of Information Engineering and Computer ScienceFeng Chia University the Department of Computer Science and Information EngineeringAsia University 

出 版 物：《Journal of Electronic Science and Technology》 (电子科技学刊（英文版）)

年 卷 期：2013年第11卷第1期

页      面：44-50页

学科分类：0839[工学-网络空间安全] 08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China Under Grant No.61272374 and No.61272371 

主　　题：Secret sharing (n n) secret image sharing Sudoku steganography. 

摘      要：Recently, Chang et al. proposed a Sudoku-based secret image sharing scheme. They utilized the Sudoku grid to generate meaningful shadow images, and their scheme satisfied all essential requirements. Based on Chang et al.＇s scheme, we propose a novel （n, n） secret image sharing scheme based on Sudoku. In the proposed scheme, a secret image can be shared among n different cover images by generating n shadow images, and the secret image can be reconstructed without distortion using only these n shadow images. Also, the proposed scheme can solve the overflow and underflow problems. The experimental results show that the visual quality of the shadow images is satisfactory. Furthermore, the proposed scheme allows for a large embedding capacity.