基于分形调制阵列的数字水印算法

Based on Fractal Modulation Array Digital Watermarking Algorithm

基于分形调制的良好性能 ,提出了一种新的使用分形调制阵列、基于HVS视觉掩盖的图像水印算法 ,该方法将水印信号进行分形调制得到含水印的分形信号嵌入到图像子块的DCT中频系数中去 ,然后进行视觉掩盖 .通过大量实验仿真结果表明 :该算法能够清晰地提取出隐藏的水印信息 .在常见的信号失真和几何失真下 ,水印具有很好的鲁棒性 .

The authors present a novel HVS-based visual masking image watermarking using fractal modulation array,based on the good performance of fractal modulation. In this algorithm,fractal modulation array is embedded to the middle frequency coefficients of the block-DCT;then visual masking is made. The simulation results show that the hiding watermarking and watermark can achieve better robust with common signal distortion or geometric distortion.