摘要
为保证在数字媒体隐藏信息前后图像的直方图保持不变,提出了一种新的汉明码混合变换算法,即汉明码结合直方图保持的信息隐藏算法。该算法先利用二元汉明码嵌入方案,确定原图像的改写位并进行改写翻转,成功嵌入秘密信息。然后根据盈亏补偿平衡点的思想,对每个嵌入的比特秘密信息,都进行相邻位直方图数据的检测并补偿,使信息隐藏前后图像的直方图改变保持最小值。通过对密写分析的结果进行对比,表明该种算法具有良好的图像信息隐藏性能。
In order to keep the histogram of the image unchanged before and after it is written, a novel hamming code mixed transform is proposed, which is an information hiding algorithm based on hamming code combined with histogrampreserving. First, the embedded binary hamming code is used by the algorithm to determine the reposition of the original image, reverse it and successfully embed the secret information. Then, according to the idea of the balance between profit and loss compensation, it is adjacent to a histogram data detection and compensation for bits of each embedded secret information to keep the minimum value for the image histogram change before and after the steganography. The experimental results show that the algorithm has good performance in image information hiding.
作者
李亚峰
郑紫微
杨任尔
叶超勇
陈贞佐
LI Yafeng;ZHENG Ziwei;YANG Ren＇er;YE Chaoyong;CHEN Zhenzuo(Zhejiang Business Technology Insdtnte, Ningbo 315012, China;Institute of Communication Technology, Ningbo University, Ningbo 315000, China)
出处
《移动通信》
2018年第4期77-82,89,共7页
Mobile Communications
基金
浙江省教育厅科研项目(Y201330021)
关键词
信息隐藏
汉明码
图像
混合变换
information hiding
hamming code
image
mixed transform
