对彩色图像的R、G和B分量分别进行位平面分割,对较低层位平面直接进行数据替换实现数据嵌入,对较高层位平面首先按位平面进行分块,然后根据每个块中的数据特征进行数据嵌入,通过控制高位平面数据减少数据嵌入后像素值的改变量,实现彩色图像大容量信息隐藏。实验表明,在彩色图像中数据隐藏量达到45%以上,峰值信噪比(PSNR)可保持在36dB以上。
Color images were divided according to the bit planes on the RGB weights respectively.Information is embedded directly at the lower level planes by the replacement of data.Firstly,each of the higher level planes is divided into sub-blocks,and then information is embedded according to the data characteristics of each sub-block.The change of the pixel values after the information embedding is reduced by controlling the data of high planes,through which large capacity of color image information hiding is achie...