Innovative image watermarking technique for image authentication in surveillance applications

Author

Fonda, Francesco ; Pastore, Stefano

Author_Institution

Dipt. di Elettrotecnica Elettronica ed Inf., Trieste Univ., Italy

fYear

2005

fDate

38485

Firstpage

32

Lastpage

35

Abstract

An image watermarking technique is proposed for image authentication, developed in particular for surveillance applications. This algorithm guarantees mark invisibility and maximum sensitivity to any forgeries. It is based on Walsh Hadamard frequency transform and on MD5 message digest algorithm. The detection algorithm is able to determinate if a watermarked image has been forged and even locate the part that has been changed. This way, both image authenticity and agreement between image and embedded information are guaranteed.

Keywords

Hadamard transforms; Walsh functions; data encapsulation; image coding; message authentication; surveillance; watermarking; MD5 message digest algorithm; Walsh Hadamard frequency transform; detection algorithm; embedded information; image authentication; image watermarking technique; maximum sensitivity; surveillance application; Authentication; Authorization; Detection algorithms; Digital signatures; Discrete transforms; Forgery; Frequency domain analysis; Protection; Surveillance; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Imaging Systems and Techniques, 2005. IEEE International Workshop on

Print_ISBN

0-7803-8922-0

Type

conf

DOI

10.1109/IST.2005.1594522

Filename

1594522