Title :
Watermarking of still images using multiresolution singular value decomposition
Author :
Akhbari, Bahareh ; Ghaemmaghami, Shahrokh
Author_Institution :
Sharif Univ. of Technol., Tehran, Iran
Abstract :
A novel robust image-adaptive digital watermarking algorithm using multi-resolution singular value decomposition (MR-SVD) is proposed in this paper. The proposed method strengthens the watermark based on the concept of entropy masking, while meeting the mark imperceptibility requirement. Experimental results show that the proposed method improves watermarking performance over watermarking methods in wavelet domain transform, in terms of both invisibility and robustness.
Keywords :
image coding; image resolution; singular value decomposition; watermarking; wavelet transforms; SVD; entropy masking; image-adaptive digital watermarking algorithm; multiresolution singular value decomposition; still images watermarking; wavelet domain transform; Digital images; Discrete wavelet transforms; Image resolution; Matrix decomposition; Signal resolution; Singular value decomposition; Spatial resolution; Watermarking; Wavelet domain; Wavelet transforms;
Conference_Titel :
Intelligent Signal Processing and Communication Systems, 2005. ISPACS 2005. Proceedings of 2005 International Symposium on
Print_ISBN :
0-7803-9266-3
DOI :
10.1109/ISPACS.2005.1595412