基于信息融合与信息补偿的数字水印算法

Algorithm for Digital Watermarking Based on Information Fusion and Compensation

为了改善数字水印的视觉效果,提高数字水印技术的鲁棒性,文中提出了一种基于信息融合与信息补偿的数字水印嵌入与检测的新方法。该方法针对一些常见的反数字水印技术的攻击特性,在不同空间、不同频率多方位的重复嵌入相同的数字水印。检测水印时依次从不同空间、不同频率抽取水印信息,然后进行多方位的信息融合与信息补偿,最后得到最终的水印图像。实验结果表明,该方法具有优良视觉效果和良好的抗剪切、抗噪声、抗滤波等鲁棒性。

In order to improve the visual property and robust virtue of digital watermarking technology, the article brings forward a new algorithm for embedding and detecting digital watermarking ,which based on information fusion and information compensation. Aimed at the assaulting character of some usual stir digital watermarking technology, the algorithm embeds the same digital watermarking in different space and frequency. When detected, the digital watermarking will be extracted from all the different space and frequency. After then the watermarking information will be fused and compensated from all the azimuth, and get the last digital watermarking image. Some experimental results have proved that the method has perfect visual property, besides preferable robust virtue such as resisting cropping, resisting interfusing noise and resisting filtering etc .