Title :
An Adaptive Digital Watermarking Algorithm Based on Balanced Multi-wavelet
Author :
Zang, Ming-Xiang ; Zhang, Na ; Jiang, Jian-Guo
Author_Institution :
Sch. of Comput. Sci. & Technol., Xidian Univ., Xi´´an, China
Abstract :
In this paper we propose a digital watermarking algorithm based on balanced multi-wavelet. According to the characteristics of the balanced multi-wavelet, a visual masking model based on single wavelet transformation and the JND (just noticeable difference) formula are analyzed and modified, then the improved visual model and the modified JND formula for balanced multi-wavelet transformation are obtained. The watermark extraction can be performed without the original image, so the algorithm belongs to blind watermarking. Experimental results show that the algorithm has strong imperceptibleness as well as good robustness.
Keywords :
feature extraction; image coding; watermarking; wavelet transforms; JND formula; adaptive digital watermarking; balanced multiwavelet transformation; blind watermarking; just-noticeable-difference formula; visual masking; watermark extraction; Information security; Watermarking; balanced multi-wavelet transformation; blind watermarking; robustness;
Conference_Titel :
Information Assurance and Security, 2009. IAS '09. Fifth International Conference on
Conference_Location :
Xian
Print_ISBN :
978-0-7695-3744-3
DOI :
10.1109/IAS.2009.287
