Title :
Copyright Protection Using a Computational Watermarking Scheme
Author :
Jiang, Qi ; Han, Dongfeng ; Li, Yi ; Li, Wenhui
Author_Institution :
Key Lab. of Symbol Comput. & Knowledge Eng., Jilin Univ., Changchun
Abstract :
In this paper an efficient copyright protection watermarking algorithm is proposed. By embedding orthogonal vector into the wavelet-tree structure of the host image, we get the watermarked image. At the same time human vision system is considered to get perceptual results. We design an elaborate function for blind watermarking scheme. This function can dynamically determine the embedding position. The theory and experimental results show that our method successfully survives image processing operation, noise adding, the JPEG lossy compression and image cropping. Especially, the scheme is robust towards image sharpening and image enhancement.
Keywords :
data compression; image coding; image enhancement; watermarking; JPEG lossy compression; computational watermarking scheme; copyright protection; image cropping; image enhancement; image sharpening; image watermarking; orthogonal vector; Copyright protection; Discrete wavelet transforms; Fourier transforms; Frequency domain analysis; Humans; Image coding; Random number generation; Visual system; Watermarking; Wavelet transforms; copyright protection; watermark; wavelet tree;
Conference_Titel :
Young Computer Scientists, 2008. ICYCS 2008. The 9th International Conference for
Conference_Location :
Hunan
Print_ISBN :
978-0-7695-3398-8
Electronic_ISBN :
978-0-7695-3398-8
DOI :
10.1109/ICYCS.2008.195