Title :
Image watermarking through joint spatial segmentation and wavelet packet frequency division
Author :
Amini, Milad ; Sadreazami, H.
Author_Institution :
Electr. Eng. Dept., Univ. of Semnan, Semnan, Iran
Abstract :
In this paper we consider a method for image watermarking based on wavelet packet frequency division and spatial segmentation. We present a new direct structured decomposition, with both spatial segmentation and orthogonal frequency branching from each node. Whereas traditional wavelet packet decomposition adapts to a global frequency distribution, this technique finds the best joint spatial segmentation and local frequency basis. To achieve better performance in case of robustness and visual quality, we take advantage of singular value decomposition characteristic. Experimental evaluations demonstrate that the proposed scheme is robust against variety of attacks.
Keywords :
image segmentation; image watermarking; singular value decomposition; wavelet transforms; global frequency distribution; image watermarking; joint spatial segmentation; orthogonal frequency; singular value decomposition characteristic; wavelet packet decomposition; wavelet packet frequency division; Digital image watermarking; Spatial segmentation and singular value decomposition; Wavelet packet transform;
Conference_Titel :
Signal Processing (ICSP), 2012 IEEE 11th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-2196-9
DOI :
10.1109/ICoSP.2012.6491567