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Dither-based secure image hashing using distributed coding

11 years 22 hour ago
Dither-based secure image hashing using distributed coding
We propose an image hashing algorithm that is based on distributed compression principles. The algorithm assumes the availability of a robust feature vector extracted from the image. Then a suitable dither sequence is added to this feature vector, and the resulting dithered feature vector is compressed using distributed compression principles. We prove that the dither sequence can be used to guarantee information-theoretic security. Applications of our proposed secure image hashing scheme include video watermarking, image authentication, and image database management.
Mark Johnson, Kannan Ramchandran
Added 24 Oct 2009
Updated 24 Oct 2009
Type Conference
Year 2003
Where ICIP
Authors Mark Johnson, Kannan Ramchandran
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