A FEATURE-BASED SEMI-FRAGILE WATERMARKING SCHEME IN DWT DOMAIN

摘要：

A novel semi-fragile watermarking scheme in DWT domain for image authentication and tamper localization is proposed in this paper. The proposed scheme extracts content-based image features from the approximation subband in the wavelet domain to generate the watermark. Then the watermark is embedded into the middle frequency subband in the wavelet domain. For image authentication and tamper localization, the extracted watermark is compared with the extracted content-based image feature matrix. Experimental results show that the proposed scheme is robust to common content-preserving image processing (such as lossy JPEG compression, noise-adding), while it is fragile to malicious tamper in images. In addition, the proposed scheme can detect the tamper location accurately.

关键词： image authentication semi-fragile watermark tamper localization image feature DWT

作者: Wei Wang Aidong Men Bo Yang

作者单位: School of Information and Communication Engineering,Beijing University of Posts and Telecommunicatio School of Information and Communication Engineering, Beijing University of Posts and Telecommunicati

会议类型: 国际会议

会议名称: 2010 2nd IEEE International Conference on Network Infrasturcture & Digital Content(2010年第二届IEEE网络基础设施与数字内容国际会议 IC-NIDC 2010)

会议地点: 北京

会议语种:英文

页码: 768-772

在线出版日期: 2010-09-24（万方平台首次上网日期，不代表论文的发表时间）