一种基于图像特征的小波域水印算法

为了更好地解决度规失真问题,提出了一种基于图像内容特征的鲁棒水印算法。该算法利用小波变换提取图像的特征信息,通过特征系数的选取和自适应嵌入策略,使得每个图像的水印相互独立,检测时不需要原始水印的先验知识,传递的副信息少。实验结果表明,该算法对原图像的影响极小,并且对于各种通用的图像操作具有极好的鲁棒性,有较高的实际应用价值。

Watermarking Algorithm Based on Feature of Digital Image in Wavelet Domain

In order to better solve the problem of the metric distortion,this paper proposed a robust watermarking algorithm based on the features of image content.The algorithm used wavelet transform to extract the image feature information,and make the watermark of each image independent by feature selection and adaptive coefficient embedding strategy.The detection of watermark does not require prior knowledge of the original image,and less redundant information is passed.Experimental results show that the degradati...