计算机应用研究2016，Vol.33Issue(11)：3480-3484,5.DOI:10.3969/j.issn.1001--3695.2016.11.062
基于马赛克技术的秘密图像共享改进算法
Improved algorithm of secret image sharing based on mosaic technique
张梦 1翟圣云 1苏栋骐1
作者信息
- 1. 上海理工大学 光电信息与计算机工程学院，上海200093
- 折叠
摘要
Abstract
This paper proposed an improved algorithm which generated meaningful shadow image based on mosaic technology for the problem that many secret image sharing algorithms were easy to generate shadow image like noise.In order to reduce noise in the shadow image,it divided secret image into small blocks and regrouped them by a key.Then,it shared secret image into cover image through comparing the similarity between images pixels.It could obtain the mosaic images which contained se-cret image.Finally,it hid location information into the mosaic images through reversible information hiding technology,so that it could get some complete and meaningful shadow images.The experimental results indicate that this algorithm greatly improves the quality of the shadow image by comparing the similarity of secret image and cover image.Comparing with Zhai’s algorithm, the generated mosaic images’PSNR increases about 7 dB by average.The conclusions prove that the algorithm enhances and guarantees the security and integrity of secret image during image sharing.关键词
秘密图像共享/信息隐藏/相似度/马赛克图像/峰值信噪比/安全性Key words
secret image sharing/information hiding/similarity/mosaic image/peak signal to noise ratio(PSNR)/secu-rity分类
信息技术与安全科学引用本文复制引用
张梦,翟圣云,苏栋骐..基于马赛克技术的秘密图像共享改进算法[J].计算机应用研究,2016,33(11):3480-3484,5.
