摘要
本文描述了一种基于独立成份分析 (ICA)的汉字信息隐密传输方法。该方法以彩色图像为寄主图像 ,对其进行ICA分解 ,求出其中的独立成分 ,再将汉字信息以编码形式 ,隐藏在对彩色图像质量影响最小的独立成分低位端 ,从而实现汉字信息的隐秘传输。该方法已经在PC机上进行了模拟 ,实验结果表明 ,该方法在保证图像质量条件下 ,有较高的嵌入率和较好的可靠性。
This paper describes a new method based on ICA to transmit hidden Chinese characters, where a color image is used as the host image and analyzed to get its independent components. After the Chinese characters having been coded, the code was embedded in the lower significant bits of the proper independent components. Thus an image with the Chinese characters hidden in it can be composed, and then transmitted on the Internet. By this method, the Chinese characters can be transmitted secretly. This method has been simulated in PC. The experiments show that using this method the transmission ratio of the Chinese characters and its security can be considerably high under the condition of keeping image quality relatively high.
出处
《中文信息学报》
CSCD
北大核心
2003年第4期59-65,共7页
Journal of Chinese Information Processing
关键词
汉字信息隐秘传输
ICA
独立成份分析
彩色图像
汉字编码
信息安全
图像传输
computer application
Chinese information processing
secret transmission
independent component analysis(ICA)
color image
Chinese characters coding
