[WM]: watermarking can really work for owner identification?

["Stephen Chou" <zjunh2002@gmail.com>]

Dear all,
I always have a basic question to watermarking tech. To my knowledge, currently ,watermarking tech is not very mature to the level
PKI reached, because robustness is still an open problem for watermarking application such as ownership identification. Imagine this
scenario. I embed my copyright info as watermarks into a picture I took somewhere and publish it on webs. The embedding algorithm is
my designed one, that is assumed to resist all attacks. if some one download the pic and use it for his stake, can I really use my
designed watermarking decoder to accuse his guilty?

Thanks


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