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基于图像二级置乱的信息隐藏技术

DOI: 10.11834/jig.200608184

Keywords: 位置置乱,灰度置乱,信息隐藏

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Abstract:

随着计算机网络及各种数字作品制作技术的迅速发展,信息隐藏技术越来越受到人们的关注。本文在分析了已有置乱方法优缺点的基础上,提出了图像的二级置乱法。它改进了原有方法中变换矩阵的形式,分别对原始图像的位置和灰度级进行不同类型的置乱,既改变了图像的纹理信息又改变了图像的统计特性,使其仅经过一次迭代就可以达到满意的效果。与其他方法相比,其计算量相对较小,且增强了图像的保密性,提高了保密信息的迷惑性,减小了攻击者的注意力。通过仿真实验证明,该方法具有较好的实用性。

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