Title :
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
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;
Conference_Titel :
Imaging Systems and Techniques, 2005. IEEE International Workshop on
Print_ISBN :
0-7803-8922-0
DOI :
10.1109/IST.2005.1594522
