一种改进的高安全性的数据隐藏算法

针对数据隐藏算法安全性弱这一缺点,提出一种改进的基于相邻像素差值的高安全性的数据隐藏算法.该方法通过构建相邻像素的差值,修改粗糙区域的灰度值来嵌入信息,信息提取后可以恢复为原始图像.为了分析算法在SPAM下的安全性,用West图库和BOWS2OrigEp31图库对其进行了测试.实验中,以6种不同的藏量来测试算法抗SPAM检测的错误率.实验结果表明,相比任洪娥等人的方法,本算法抗SPAM检测的错误率提高了0.09％～3.44％,更适合进行信息的传递.

An Improved Algorithm for Secured Data Hiding

Aiming at improving the weak security of Ren~ algorithm proposed in 2009, this paper proposed an improved and secure data hiding method based on difference two adjacent pixels. This method computed the differences between neighboring pixels and then embedded information by modifying the grayscale values in rough area. After extracting the embedded message the cover image was recovered to the original state. Security of the algorithms using SPAM was then analyzed, using BOWS2OrigEp31 and West image databases, and six different embedding capacities were used against SPAM detection. Experimental results show that the detection error rate of the proposed method is 0. 09% ~ 3.44% better than the Ren＇s approach, and that the proposed algorithm is therefore a better solution to information transmission.