【摘要】 伴随着计算机网络及通信技术的飞速发展,数字图像认证技术已成为目前研究的一个热点.对基于数字签名和基于数字水印的认证技术进行了比较,在此基础上阐述了数字水印技术的特征,认证系统框架,详细讨论了数字水印图像认证算法的研究现状,并对其未来发展方向进行了展望.更多还原

【Abstract】 With the development of Internet and communication technology,image authentication has been under active study in recent years.Both digital signature and digital watermarking can be utilized for image authentication,there are compared in this paper,then the feature of digital watermarking and frame of authentication system based on watermarking are proposed.Finally,the future development of digital watermarking for image authentication is also analyzed and conjectured in the paper.更多还原