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
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作者:
P. Wong
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.