基于图像LSB的秘密信息隐藏技术

基于图像的信息隐藏技术有着广泛的应用,而最低有效位算法是其中有效的方法之一.本文首先对载体图像进行位平面分析,发现LSB位具有最好的隐藏效果;然后分别实现了三个以二值图像和文本文件作为秘密信息的信息隐藏和提取实验.实验结果表明：基于图像LSB的秘密信息隐藏不仅具有算法简单、透明性良好的特点,而且还具有隐藏信息容量大、无失真提取、对文本文件具有双重隐藏功能等优点.

Secret Information Hiding Technology Based on LSB of Image

Secret information hiding technology based on image has broad applications.LSB algorithm is one of effective algorithms.This paper first introduces the method of bit plane analysis,finding LSB has the best hiding effect,then respectively realizes three experiments on information embedding and extracting: the first one takes an image with two different values as secret information and another two take a text file as secret information.The experimental results show that secret information hiding technology based on LSB of image not only has the advantages of simplicity,good imperceptibility,but also has great hiding capacity,extraction with no distortion,dual hiding effect for text file,and so on.