基于位平面分解技术的JPEG水印算法

Digital watermarking algorithm based on dual-tree complex wavelet transform

提出一种基于位平面分解技术的JPEG压缩水印算法。该算法首先对图像进行置乱变换;然后采用位平面分解技术对灰度水印图像进行预处理操作,将该灰度水印图像转换成二值信息流;最后把水印嵌入载体图像中。实验表明,该算法对于不同类型的攻击有较强的鲁棒性。

The paper proposed a JPEG watermarking algorithm based on the decomposing technique of bit plane. This algorithm made a scrambling change to image at first, and then performed pre-processing operation of grey watermark image by using the decomposing technique of bit plane and changed the grey watermark image into binary-sequences. Finally, it embedded the watermark into cartier image. The experimental results show that the algorithm is robustness for different kinds of attack.