Multi-level visual secret sharing scheme with smooth-looking

Authors:
Hong-Hao Chen;Cheng-Chi Lee;Chih-Chiang Lee;Hsien-Chu Wu;Chwei-Shyong Tsai
Affiliations:
National Chung Hsing University, Taichung City, Taiwan, ROC;Asia University;National Chung Hsing University, Taichung City, Taiwan, ROC;National Taichung Institute of Technology;National Chung Hsing University, Taichung City, Taiwan, ROC
Venue:
Proceedings of the 2nd International Conference on Interaction Sciences: Information Technology, Culture and Human
Year:
2009

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Abstract

In traditional visual secret sharing (VSS) scheme, the pixel expansion is a drawback which not only increases the transmission cost, but also distorts the recovered secret image. This paper proposes a visual secret sharing scheme which hides a secret into two share images without pixel expansion. It provides high quality of recovered secret image. The experimental results show the stacking result of share images in our scheme is smoother than others.