A Watermark for Image Integrity and Ownership Verification

A Watermark for Image Integrity and Ownership Verification
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发表时间:
1998
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通讯作者:
P. Wong
P. Wong
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其他
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作者:
P. Wong

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本文提出了一种用于所有权验证和图像认证的数字水印方案。认证水印是不可见的,并且在可信摄像机、图像交易、法律的年龄、医疗存档等方面有应用。该水印与一个合适的数字密钥相结合,可以检测和定位对图像的任何修改。水印继承了加密散列函数的安全性,因此任何未经授权的用户通过伪造来混淆图像完整性或所有者在计算上是不可行的。我们还描述了使用这种不可见的认证水印,以保护任何可见水印。
We describe in this paper a watermarking scheme ownership verification and image authentication. Th authentication watermark is invisible, and has applic tions in trusted cameras, image transactions, legal ages, medical archiving, and others. This watermark conjunction with an appropriate digital key, can dete and localize any modifications to images. The wate mark inherits the security of a cryptographic hash fun tion, hence it is computationally infeasible for any una thorized user to confuse the image integrity or owners by forgery. We also describe using this invisible authe tication watermark to protect any visible watermarks.