摘要
为了嵌入更多的水印信息,在对传统空间域数字水印研究的基础上提出了一种基于传统LSB方法的一些扩充,首先运用Arnold变换将水印图象置乱,接着把置乱后的水印图象的象素按相邻两个一组分组,并给它们一个序号,原图象根据密钥key随机重排,分组后的水印按照一定的算法能找到原图象中与它对应的象素点,根据水印组的取值修改原图象中对应的象素点的最低两位。该算法简便易行,而且实验证明,该算法是有效的。
In order to provide more watermarks,a technique based on traditional LSB algorithm is presented in this paper. First, disorder the position of pixels of the watermarking image by apply Aronold transform,following,deal with the disordered watermarking image ,let two pixels of neighbor be divided a group and give a number,original image random renew arrangement by key,the water ma rking image after pass by divide group can find corresponding pixel in original image according to specifically algorithm,and revi...
