Digital Watermarking Based on Wavelet and Chaotic Mapping

Yuan Song; Bo Zhou; Guo Jun Zhou

doi:10.4028/www.scientific.net/AMM.519-520.520

Paper Titles

Research on Time-Domain Correlation Technique Based on ZC Sequences in OFDM System
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Realization of Automatic Keystone Correction for Smart Mini Projector Projection Screen
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Music Recommendation with Collaborative Filtering for Mobile Services
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Implementation of Smart Home Terminal Based on OpenWrt
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Digital Watermarking Based on Wavelet and Chaotic Mapping
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Basedon Multi-Screen Integration Workflow Scheduling Program Authoring Management System Design and Implementation
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Research of Television Boot-Strap Information Delivery Based on User Profiles
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A Method of Extracting Inter-Object Spatial Relationship in Remote Sensing Image Objects
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A New Image Segmentation Model
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 519-520Digital Watermarking Based on Wavelet and Chaotic...

Digital Watermarking Based on Wavelet and Chaotic Mapping

Abstract:

An algorithm of wavelet digital watermarking was proposed to improve the security of the watermark. First, the logistic chaotic sequence was used to generate an encrypted image watermarking, then discrete wavelet transform (DWT) was used to decompose the original image and the watermark was embedded into the selected frequency band of significant wavelet coefficients. Finally, an approach for extraction was adopted. Experimental results show that the watermark is robust to attacks if the chaotic key is unknown.