摘要
该文提出了一种新的有效的抗JPEG压缩的水印算法,对嵌入水印的图像做JPEG压缩,提取水印仍能保证很好的稳健性,并能抵抗一些常见的攻击。通过对图像做仿JPEG流程的处理,在DCT变换的直流系数上嵌入水印,对于各种常用的JPEG压缩量化因子,可以得到良好的水印嵌入效果。
This paper proposes a new effective digital watermarking method that accepts JPEG lossy compression on the watermarked image to a pre-determined quality factor,and rejects malicious attacks.It embeds the watermark bits on the DC of the DCT transform coefficients,for most JPEG quality factor,the method is proved to be robust and effective.
出处
《计算机工程与应用》
CSCD
北大核心
2004年第18期92-94,共3页
Computer Engineering and Applications
关键词
数字水印
JPEG量化
离散余弦变换
PSNR
digital watermarking,JPEG quantization,Discrete Cosine Transform(DCT),PSNR
