Title	Multiple Audio Watermarking With Spectrum Pyramid
Author	Roumen Kountchev, Mariofanna Milanova, Vladimir Todorov, Roumiana Kountcheva
Citation	Vol. 7  No. 2  pp. 191-200
Keywords	Digital watermarking, Spectrum pyramid, Complex Hadamard Transform

Title	Multiwavelet Image Watermarking Using Perceptually Tuned Model
Author	Ji-Hong Kim, Hee-Jung Kim, Ki-Ryong Kwon
Citation	Vol. 6  No. 12  pp. 233-238
Keywords	digital watermarking, multiwavelet filter bank, perceptually tuned model

Title	A Robust Digital Watermarking System Adopting 2D Barcode against Digital Piracy on P2P Network
Author	Eui-Hyun Jung, Seong-Yun Cho
Citation	Vol. 6  No. 10  pp. 263-268
Keywords	Digital Piracy, Watermarking, P2P

Title	A Novel Image Scrambling Algorithm for Digital Watermarking Based on Chaotic Sequences
Author	Zhu Liehuang, Li Wenzhuo, Liao Lejian, Li Hong
Citation	Vol. 6  No. 8  pp. 125-130
Keywords	Image Scrambling, Digital Watermarking, Chaotic Sequences, Cat Mapping.