多重秘密共享的DCT域二值图像隐藏方案
曹如冰;艾斯卡尔
【期刊名称】《计算机科学》 【年(卷),期】2011(038)010
【摘要】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%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. 【总页数】4页(270-272,284)
【关键词】多重秘密共享;二值图像;离散余弦变换;图像隐藏 【作者】曹如冰;艾斯卡尔
多重秘密共享的DCT域二值图像隐藏方案
