中文说明：数字水印图片信息隐藏在载体图片的最低有效位lsb，直接替换，该方法简单易操作，鲁棒性很差，经不起加噪，滤波，剪贴等攻击
English Description：
The information of digital watermarking image is hidden in the LSB of the carrier image, which is directly replaced. This method is simple and easy to operate, and has poor robustness. It can not withstand the attacks of noise, filtering, clipping and so on