摘要
研究了一种新的二值图像隐藏方案,即将一幅二值图像隐藏在多幅载体图像中。针对二值图像取值形式为二值的特点,该方案第一次把变长游程编码算法、多重秘密共享思想和DCT域的信息隐藏算法结合在一起,并根据载体图像的最大隐藏信息量把秘密图像游程长度序列分成n块,由n个密钥控制并分别隐藏在n幅载体图像中。实验表明,该算法在不明显引入修改痕迹的情况下,可显著提高安全性和鲁棒性,并且可以无损还原。
A new binary image hiding scheme was proposed,which hided a binary image into several cover images.Based on the characteristics of the binary image whose value is 0 or 1,this scheme combined multi-secret sharing with RLE algorithm and DCT algorithm for the first time.According to the biggest size of cover images,this scheme divided RLE length of the shadow image into the n blocks,and then embedded the n blocks of secret information in cover images under the control of n keys.Experiment demonstrates that this scheme sufficiently increases the security of secret information and improves the robustness and acheves the better recovery effect.
出处
《计算机科学》
CSCD
北大核心
2011年第10期270-272,284,共4页
Computer Science
基金
国家自然科学基金项目(61065001)
新疆维吾尔自治区科技厅少数民族特殊培养计划项目(201023116)资助
关键词
多重秘密共享
二值图像
离散余弦变换
图像隐藏
Multi-secret sharing
Binary image
Discrete cosine transform
Image hiding
