Titlebook: Innovations in Digital Watermarking Techniques; Feng-Hsing Wang,Jeng-Shyang Pan,Lakhmi C. Jain Book 2009 Springer-Verlag Berlin Heidelberg

细胞学

induct

围巾

peak-flow

Watermarking Based on Multiple Description VQe noise of the channels? In this chapter, unlike the watermarking systems introduced previously which apply artificial procedures (or attacks in other term) to test the robustness, we focus on the channel noise and introduce a hybrid watermarking scheme to overcome the losses caused by channel error

BABY

Fake Watermark Embedding Scheme Based on Multi-Stage VQtem first creates a non-recognizable reference watermark by referring to the genuine watermark and a number of fake watermarks. It then performs the MSVQ to encode the cover image. In each stage of the MSVQ system, a polarity stream is established according to the VQ indices obtained. The exclusive-

FRAX-tool

Mettle

Spatial-Based Watermarking Schemes and Pixel Selectionxperimental results and comparison are also given in this section. In the third section, a training procedure called genetic pixel selection (GPS) is introduced. It takes the considered methods of attack into account, and employs genetic algorithms to find a better way to select a number of pixels f

勉强

山顶可休息

obsession