Title :
Attack characterisation of compressed images
Author :
Knowles, H.D. ; Winne, D.A. ; Canagarajah, C.N. ; Bull, D.R.
Author_Institution :
Centre for Commun. Res., Bristol Univ., UK
Abstract :
We propose the use of robust watermarks to enable the characterisation of attacks even after lossy compression, such as JPEG and JPEG2000. A previously constructed Bayesian framework is used to allow characterisation of attacks from a predetermined library, and the double watermarking technique as earlier proposed by the authors is employed to generate the features used to drive the classifier. The results show that the developed techniques perform well for both types of compression.
Keywords :
code standards; data compression; image classification; image coding; telecommunication standards; watermarking; Bayesian framework; JPEG; JPEG2000; attack characterisation; authentication; classifier; compressed images; copyright; double water-marking technique; library; lossy compression; robust watermarks; Authentication; Bayesian methods; Gaussian distribution; Image coding; Image communication; Libraries; Robustness; Tin; Transform coding; Watermarking;
Conference_Titel :
Consumer Electronics, 2003. ICCE. 2003 IEEE International Conference on
Print_ISBN :
0-7803-7721-4
DOI :
10.1109/ICCE.2003.1218810
