摘要
针对彩色数字图像的版权保护、认证等问题,利用彩色图像的3个颜色通道,从离散余弦变换(DCT)域的中频开始嵌入代表0和1的不相关的高斯随机序列,提出了一种基于DCT域的盲检测水印算法.实验结果证明该算法具有良好的不可见性,对JPEG压缩、噪声攻击和剪切攻击都有很好的鲁棒性.
Aiming at the copyright protection and authentication of color digital images , this paper proposes a blinddetection watermarking algorithm of images,which embeds irrelative Gauss random sequence that represents 0 or 1 into the intermediate frequency of discrete cosine transformation（DCT） domain through 3 color channels. The experimental results prove that this algorithm is invisible, robust against the attack of JPEG compression, noise and cut-and-paste attack.
出处
《应用科技》
CAS
2006年第6期1-4,共4页
Applied Science and Technology
基金
高等学校优秀青年教师教学科研奖励计划资助(2001-226)
关键词
DCT
鲁棒性
高斯随机序列
水印
DCT
robustness
Gauss random sequence
watermarking
