摘要
结合JPEG2000压缩标准的特点,研究实现了一种小波域的数字水印算法。水印图像用Arnold变换进行保密处理,提取原图像的蓝色分量进行小波变换,然后把水印信息嵌入在最低频子带系数上。实验证明该算法有很好的透明性,对于JPEG2000压缩攻击有较高的稳健性。
An digital watermarking arithmetic, base on DWT, for JPEG2000 standard is studied and actualized. After Arnold transform, Watermarks were embedded in the lowest-frequency sub band of the original image＇s blue part. According to the experiment result, the Arithmetic is invisible and robust enough against JPEG2000 compression attack.
出处
《科学技术与工程》
2006年第14期2151-2154,共4页
Science Technology and Engineering
