期刊文献+

一种基于粒子群优化的信息隐藏方法

Information hiding method based upon particle swarm optimization algorithm
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摘要 针对以灰度图像为掩体信号的数据隐藏,提出了一种基于粒子群优化技术的空间域信息隐藏方法。该方法首先运用粒子群优化算法快速搜索到一个较优的映射矩阵,然后将待隐藏的信息通过该映射进行置换;最后,将置换结果嵌入到掩体图像灰度信息中。实验结果表明,与基于遗传算法的信息隐藏方法相比,该算法花费时间少,嵌入信息后的图像质量好。 For the data hiding which uses an image as the cover signal, a new spatial domain information hiding method based on particle swarm optimization (PSO) algorithm is proposed. This method first employs the PSO algorithm to get the optimal substitution matrix for transforming the secret messages. The transformed result is then hidden into the cover image. Experimental results show that the proposed PSO-based method costs less computation time and achieves a better stego image quality than the genetic algorithm-based information hiding method.
出处 《系统工程与电子技术》 EI CSCD 北大核心 2007年第4期655-658,共4页 Systems Engineering and Electronics
基金 国家自然科学基金资助课题(NSF60571052)
关键词 信息隐藏 数据处理 粒子群优化算法 遗传算法 information hiding data processing particle swarm optimization algorithm genetic algorithm
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参考文献10

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