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针对彩色BMP图像的DCT域大容量信息隐藏算法 被引量:4

High Capacity Information Hiding Methods in DCT Field for BMP Color Images
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摘要 提出一种在彩色BMP图像中嵌入大容量信息的NLMB-DM算法(非线性多比特抖动调制,Nonlinear Multi-bit Dither Modulation),并在该算法的基础上借鉴RDM算法(合理抖动调制,Rational Dither Modulation)和Watson感知模型提出了两种自适应的信息隐藏算法.实验证明,这3种算法均具有较大的嵌入容量、较好的不可观测性和较小的误比特率. A NLMB-DM (Nonlinear Multi-bit Dither Modulation) method which can embed information into BMP color images with high capacity is proposed in this paper. On the basis of NLMB-DM method, two adaptive methods which separately use the idea of RDM (Rational Dither Modulation) method and Watson visual model are brought forward. The results show that these 3 methods both have the property of high capacity, good imperceptibility and low bit error rate.
出处 《小型微型计算机系统》 CSCD 北大核心 2009年第3期484-487,共4页 Journal of Chinese Computer Systems
基金 国家自然科学基金项目(60772032)资助
关键词 信息隐藏 BMP 抖动调制 感知模型 information hiding BMP dither modulation visual model
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参考文献8

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