摘要
本文根据模运算的结果在DCT域低频系数的直流分量嵌入水印,算法表明:该算法具有教强的鲁棒性,能抵御裁减、压缩等图像操作攻击。
This paper present a watermark algorithm in DC frequency coefficient in DCT domain base on energy modulo. The exercises show the algorithm has good robustness, can resist image crap ,compression and other image processing operations.
出处
《黑龙江科技信息》
2017年第1期37-38,共2页
Heilongjiang Science and Technology Information
关键词
能量模
离散余弦变换
水印
Energy modulo
Discrete Cosine Transform
Watermark
