题名 |
SHARE A SECRET IMAGE WITH INVERTIBLE AND LOSSY CHARACTERISTICS |
DOI |
10.7903/ijecs.1467 |
作者 |
Chien-Chang Chen;Chong-An Liu;Yu-Jing Lin |
关键词 |
Secret Image Sharing ; Different Expansion ; Lossy Recovery |
期刊名称 |
International Journal of Electronic Commerce Studies |
卷期/出版年月 |
7卷2期(2016 / 12 / 01) |
页次 |
135 - 154 |
内容语文 |
英文 |
中文摘要 |
Conventional (t, n) secret image sharing schemes share a secret image to n shared images, where any t shared images recovers the secret image. Among these shared images, noise-like properties easily draw attacker attention. Embedding shared images in meaningful cover images thus efficiently reduces attacker attention. This paper presents a different-expansion technique based invertible secret image sharing scheme that allows participants to perfectly restore the secret image and cover images. The proposed scheme also contains a lossy property which means that cover images do not have to be perfectly recovered to share larger secret images. The proposed scheme performs well with M-ary number systems, allowing users to determine the trade-off between covered image quality and secret image size. Experimental results show that the proposed scheme shares a large secret image and has good covered image quality. |
主题分类 |
基礎與應用科學 >
資訊科學 社會科學 > 經濟學 社會科學 > 財金及會計學 社會科學 > 管理學 |
参考文献 |
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