Title :
A digital watermark scheme using bits operation
Author :
Liu, Yuan-Chen ; Tsai, Tsung-Han ; Hung, Wen-Liang ; Huang, Ssu-Hua ; Chou, Chih-Bin
Author_Institution :
Graduated Inst. of Comput. Sci., Nat. Taipei Teachers Coll., Taiwan
Abstract :
The work presents the design of a digital watermark scheme based on DCT; it has the advantages of imperceptibility and robustness achieved by grouping every watermark bit in a group and changing only one coefficient each time in turn. The simulation result shows that the performance of the proposed algorithm is better than that of other algorithms.
Keywords :
discrete cosine transforms; image coding; transform coding; watermarking; DCT; bits operation; digital watermark scheme; image watermark; imperceptibility; robustness; Computer science; Discrete cosine transforms; Educational institutions; Frequency; Image coding; Mathematics; PSNR; Protection; Robustness; Watermarking;
Conference_Titel :
Consumer Electronics, 2005. ICCE. 2005 Digest of Technical Papers. International Conference on
Print_ISBN :
0-7803-8838-0
DOI :
10.1109/ICCE.2005.1429859
