10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 USA
出版者：
IEEE COMPUTER SOC
ISBN：
978-0-7695-2745-1
机构署名：
本校为第一且通讯机构
院系归属：
计算机学院
摘要：
In this paper a wavelet-based HVS characteristic watermarking algorithm for copyright protection of digital image is presented. Instead of using a random sequence, a visually meaningful gray scale logo is used as watermark. Our techniques apply the Arnold transform to disturb watermark and split the wavelet coefficients of the low frequency into small blocks. Watermark is embedded into the maximal absolute value of these coefficients selected based on the weight factors calculated by exploiting the human visual system (HVS) characteristics. The experiment results demonstrated the new algorithm...
