Abstract:
This paper proposes a new algorithm to calculate the affine factors of image based on geometric moment. Experimental results show that the geometric distortions of watermarked image can be estimated efficiently by this method. Using these estimated factors, the corrupted watermarked image can be corrected, so that the watermark can be detected correctly as a result
Key words:
Digital watermarking; Image moment; Geometrical attacks
摘要： Research on Methods Against Geometrical Attacks of Digital Watermarking
关键词:
GAO Zhen, TAI Lichun, ZHANG Zhihao
GAO Zhen, TAI Lichun, ZHANG Zhihao. Department of Computer Science and Engineering, Tongji University, Shanghai 200092[J]. Computer Engineering, 2006, 32(5): 135-137.
高 珍，台莉春，张志浩. 数字水印对抗几何攻击方法的研究[J]. 计算机工程, 2006, 32(5): 135-137.