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首页> 外文期刊>International Journal of Computer Network and Information Security >Application of CL multi-wavelet transform and DCT in Information Hiding Algorithm
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Application of CL multi-wavelet transform and DCT in Information Hiding Algorithm

机译：CL多小波变换和DCT在信息隐藏算法中的应用

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摘要

Taking advantage of a feature that allows theenergy of an image would gather and spread on four components (LL2, LH2, HL2 and HH2) in the sub image after first-order CL multi-wavelet transform, and Using the advantage of Discrete Cosine Transform in application of information hiding, propose an Information Hiding scheme based on CL multi-wavelet transform and Discrete Cosine Transform (abbreviated as CL-DCT). LL2 is embedded module of robust parameters (optimized code of Chebyshev scrambling and Hash value of embedding information). Embed hiding Information in LH2 and HL2 with RAID1 and fragile sign in HH2. Select a different range of DCT coefficients in LH2, HL2 and HH2. The embedding sequence of each bit plane is traversal according to Knight-tour rout. Experimental results indicate that the proposed scheme can increase invisibility and robustness separately by 5.24% and 28.33% averagely. In particular, the scheme has better ability against cutting attacks. The scheme has certain ability against steganalysis such as Higher Order Statistics based on wavelet coefficients. Moreover, the scheme has excellent sensitivity of image processing.
机译：利用允许图像能量在一阶CL多小波变换后在子图像中的四个分量（LL2，LH2，HL2和HH2）上聚集和扩散的功能，并利用离散余弦变换的优势在信息隐藏的应用中，提出了一种基于CL多小波变换和离散余弦变换（简称为CL-DCT）的信息隐藏方案。 LL2是鲁棒参数的嵌入式模块（Chebyshev加扰的优化代码和嵌入信息的Hash值）。将隐藏信息嵌入带有RAID1的LH2和HL2中，并在HH2中嵌入易碎的符号。在LH2，HL2和HH2中选择其他范围的DCT系数。每个位平面的嵌入顺序根据Knight-tour rout遍历。实验结果表明，该方案可以分别提高隐身性和鲁棒性，分别提高了5.24％和28.33％。特别地，该方案具有更好的抵抗攻击的能力。该方案具有一定的抗隐写能力，例如基于小波系数的高阶统计量。此外，该方案具有优异的图像处理灵敏度。

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