一种基于整数小波和位平面的零水印算法

A Zero-watermarking Algorithm Based on Bit-Plane

提出一种基于位平面的数字图像零水印算法,将载体图像小波分解后,利用原始图像低频逼近子图的位平面和置乱后的水印图像得到构造图像,再加密成密钥图像。密钥图像被用来提取水印。算法简单,嵌入信息量大,并且有较强的鲁棒性。

An image zero-watermarking method based on bit-plane is proposed in this paper. The secret image is obtained by the scrambled watermark and the bit-plane of the low-frequency sub component of the original image. The watermark image can be extracted from the secret image. This algorithm is simple, robust and provieded high capacity.