关键词: 数字水印, 回归型支持向量机, 小波域, 盲检测, 透明性, 鲁棒性

Abstract: A new blind image watermarking algorithm based on Support Vector Regression（SVR） is proposed.Firstly，the image is decomposed through wavelet transform.Then the SVR train model can be obtained by applying the relationship between the selected coefficient and its neighboring coefficients and the local correlation of digital image.The watermark is adaptively embedded in wavelet domain and can also be extracted by the well trained SVR model.The proposed scheme can extract the digital watermark without the help of the original digital image.Experimental results show that the proposed method’s performance has a good transparence of embedded watermark image and is better than the one based on SVM in spacial domain in the high robustness to the common image processing and JPEG compression.

Key words: digital watermark, Support Vector Regression（SVR）, wavelet domain, blind detecting, imperceptibility, robustness