Adaptive water marking

Author

Wong, K.K. ; Tse, C.H. ; Ng, K.S. ; Lee, T.H. ; Cheng, L.M.

Author_Institution

Dept. of Electron. Eng., City Polytech. of Hong Kong, Kowloon, Hong Kong

Volume

43

Issue

4

fYear

1997

fDate

11/1/1997 12:00:00 AM

Firstpage

1003

Lastpage

1009

Abstract

The watermark is an important protection and identification technique that allows an invisible mark to be placed on top of normal information such as bank note, ID card, magnetic card and valuable documents. Watermarking techniques have been developed to protect digital images against illegal reproduction and illegal modifications when visibility to users is required. Here, we present a new adaptive watermarking algorithm. The adaptive watermark is generated from the image content and can be treated as a digital fingerprint of the image. As a transform based algorithm is used to encode the information in the histogram domain the proposed watermark is robust enough against any degradation, hacking and attack

Keywords

adaptive signal processing; cryptography; identification; image coding; transform coding; adaptive water marking; attack robustness; degradation robustness; digital fingerprint; digital images; hacking robustness; histogram domain; identification technique; illegal modifications; illegal reproduction; image content; invisible mark; protection technique; transform based algorithm; visibility; Cryptography; Data security; Digital images; Discrete cosine transforms; Fingerprint recognition; Image generation; Pixel; Protection; Robustness; Watermarking;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.642365

Filename

642365