Title :
Digital watermarking using cascading transform
Author :
Ratanasanya, San ; Amornraksa, Thumrongrat
Author_Institution :
Dept. of Comput. Eng., King Mongkut´´s Univ. of Technol., Bangkok, Thailand
Abstract :
A new idea to use more than one transform to embed a watermark signal is proposed in this paper. It is to exploit the benefits from different characteristics of each transform to increase the robustness of the watermark systems against several attacks. Moreover, more security is added to the watermarking system due to the existence of the other transforms. The experiments show impressive results. The robustness was optimized. Higher robustness against several attacks was achieved.
Keywords :
copyright; data compression; data encapsulation; discrete cosine transforms; discrete wavelet transforms; image coding; watermarking; cascading transform; digital watermarking; discrete cosine transform; discrete wavelet transform; embedded watermark signal; transform characteristics; watermark attacks; watermark system robustness; Digital signal processing; Discrete cosine transforms; Discrete wavelet transforms; Embedded computing; Frequency domain analysis; Image coding; Protection; Robustness; Security; Watermarking;
Conference_Titel :
Communications and Information Technology, 2004. ISCIT 2004. IEEE International Symposium on
Print_ISBN :
0-7803-8593-4
DOI :
10.1109/ISCIT.2004.1412859
