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High-capacity image hiding scheme based on vector quantization

机译:基于向量量化的高容量图像隐藏方案

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摘要

A novel grayscale image hiding scheme that is capable of hiding multiple secret images into a host image of the same size is proposed in this paper. The secret images to be hidden are first compressed by vector quantization with additional index compression process. Then, the compressed secret images are encrypted and embedded into the least-significant bits of the host pixels. To provide good image quality of the stego-image, the modulus function and the image property are employed to hide the secret bits into the host pixels and determine the number of hidden bits in each host pixel, respectively. According to the results, the proposed scheme provides a higher hiding capacity and a higher degree of security than that of the virtual image cryptosystem. (c) 2006 Pattern Recognition Society. Published by Elsevier Ltd. All rights reserved.
机译:本文提出了一种新颖的灰度图像隐藏方案,其能够将多个秘密图像隐藏成相同尺寸的主机图像。 要隐藏的秘密图像首先通过与附加索引压缩过程的矢量量化进行压缩。 然后,压缩秘密图像被加密并嵌入到主子像素的最低有效位中。 为了提供STEGO图像的良好图像质量,采用模量函数和图像属性将秘密比特隐藏到主子像素中,并分别确定每个主机像素中的隐藏位数。 根据结果,该方案提供了比虚拟图像密码系统更高的隐藏容量和更高程度的安全性。 (c)2006年模式识别协会。 elsevier有限公司出版。保留所有权利。

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