摘要
提出了一种在脊波变换域上进行图像认证的新算法。该算法利用Arnold变换对水印信息进行置乱,然后将水印嵌入到原图像的脊波系数中。实验结果表明,实现的水印具有不可见性,对于JPEG压缩、裁剪、椒盐噪声具有较好的健壮性,而且能有效地对图像更改进行认证。
A novel algorithm for image authentication in ridgelet domain is presented. The algorithm makes watermark information chaos through Arnold transform, and embeds watermark to the ridgelet coefficent of original image. Experimental results demonstrate that the watermark is invisible and robust against JPEG compress, crop, and salt ＆ pepper noise etc. And it is effective to the authentication of image modification.
出处
《科学技术与工程》
2006年第11期1492-1494,共3页
Science Technology and Engineering
关键词
脊波变换
认证
小波
数字水印
ridgelet transform authentication wavelet digital watermark
