Title :
A new detecting scheme for blind images watermarking
Author :
Zhongwei, Sun ; DengGuo, Feng
Author_Institution :
State Key Lab. of Inf. Security, Chinese Acad. of Sci., Beijing, China
fDate :
31 Aug.-4 Sept. 2004
Abstract :
Watemark detection plays a crucial role in digital watermarking. A robust DWT-domain watermark detection scheme is proposed in this paper. First, generalized Gaussian distributions are applied to statistically model the wavelet coefficients of the detail sub-bands of the original image. Then, based on the theory of statistical inference and weak signal detection in non-Gaussian noise, a robust blind detection algorithm is derived. The performance of the new detector is analyzed. And the validity of the detector is also tested.
Keywords :
Gaussian distribution; discrete wavelet transforms; image coding; statistical analysis; transform coding; watermarking; DWT-domain watermark detection; blind detection algorithm; blind images watermarking; digital watermarking; generalized Gaussian distribution; nonGaussian noise; wavelet coefficient; weak signal detection; Detection algorithms; Detectors; Discrete wavelet transforms; Gaussian distribution; Noise robustness; Performance analysis; Signal detection; Testing; Watermarking; Wavelet coefficients;
Conference_Titel :
Signal Processing, 2004. Proceedings. ICSP '04. 2004 7th International Conference on
Print_ISBN :
0-7803-8406-7
DOI :
10.1109/ICOSP.2004.1442248
