FEI Ru-chun1, WANG Li-na1, ZHANG Huan-guo1. Data hiding method based on color table expansion technique[J]. 2009, 30(4): 137-140.DOI：
基于颜色表扩展技术的数据隐藏方法
摘要
提出了一种基于索引图像颜色表扩展技术的数据隐藏方法
并对该方法的安全性及隐藏容量进行了分析
分析结果表明
该方法具有很强的安全性和很高的隐藏容量。利用该方法可以将机密数据隐藏在索引掩护图像中
获得的伪装图像具有与原始掩护图像完全相同的视觉效果。如果提供正确的密钥
机密数据可以从伪装图像中无失真地得以恢复。另外
由于使用了随机数
机密数据的统计特性被完全掩盖
伪装图像与机密数据统计独立。
Abstract
Based on color table expansion technique for indexed images
a data hiding method was proposed
and the se-curity and the hiding capacity were analyzed.The analysis results show that this method has very strong security and very high hiding capacity.Secret data can be hidden in an indexed cover image to generate a stego-image with the same visual effect as the cover image and resumed without distortion from the stego-image if the correct key is used.In addition
the statistical feature of the secret data is completely covered up by using random data
so the stego-image is statistically in-dependent of the secret data.
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