TY - GEN
T1 - A watermarking method for still images using modified code division multiple access
AU - Chen, Ji Hong
AU - Chen, Chin Hsing
AU - Chen, Wen Yuan
PY - 2008
Y1 - 2008
N2 - Watermarking is a potential method for copyright protection and multimedia data authentication in the internet. The watermarking process can be considered as a communication task. In this paper, a novel watermarking scheme using code division multiple access (CDMA) modulation is proposed to achieve a superior performance in terms of robustness and imperceptibility. In the proposed scheme, every three watermark bits are modulated into a five bit MCDMA code. Then the MCDMA code is concealed in the coefficients of a DCT block. To demonstrate the efficiency of the proposed scheme, simulations under various conditions are conducted. The empirical results show that our proposed scheme can stand up against most common attacks including JPEG compression, rotating, resizing, cropping, mosaicking, noising and blurring etc.
AB - Watermarking is a potential method for copyright protection and multimedia data authentication in the internet. The watermarking process can be considered as a communication task. In this paper, a novel watermarking scheme using code division multiple access (CDMA) modulation is proposed to achieve a superior performance in terms of robustness and imperceptibility. In the proposed scheme, every three watermark bits are modulated into a five bit MCDMA code. Then the MCDMA code is concealed in the coefficients of a DCT block. To demonstrate the efficiency of the proposed scheme, simulations under various conditions are conducted. The empirical results show that our proposed scheme can stand up against most common attacks including JPEG compression, rotating, resizing, cropping, mosaicking, noising and blurring etc.
UR - http://www.scopus.com/inward/record.url?scp=67549107836&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67549107836&partnerID=8YFLogxK
U2 - 10.1109/ISDA.2008.262
DO - 10.1109/ISDA.2008.262
M3 - Conference contribution
AN - SCOPUS:67549107836
SN - 9780769533827
T3 - Proceedings - 8th International Conference on Intelligent Systems Design and Applications, ISDA 2008
SP - 352
EP - 357
BT - Proceedings - 8th International Conference on Intelligent Systems Design and Applications, ISDA 2008
T2 - 8th International Conference on Intelligent Systems Design and Applications, ISDA 2008
Y2 - 26 November 2008 through 28 November 2008
ER -