Color Image Watermarking Algorithm Based on DWT-SVD

摘要：

A novel watermarking scheme of embedding a scrambling watermark into the green component of the color image based on DWT-SVD is proposed. The green component is decomposed for LLn, HLn, LHn, HHn with DWT at the Nth levels. For each subband, adopt different methods to complete the watermark embedding. For the part LLn, imbed pseudo-random after spreading according to the energy. Decompose the three wavelet matrix coefficients LHn, HLn, HHn with SVD. Add the SVD of the scrambled watermarking and the SVD of the wavelet coefficients, and then the imbedding course is accomplished. The retrieving watermark algorithm and the blind detecting algorithm both are designed according to the embedding scheme. The experiment indicates that the watermark is robust to JPEG compression, cropping, Gaussian noise, median filter and resize.

关键词： digital watermarking color image DWT SVD chaotic scramble

作者: Cheng-qun Yin Li Li An-qiang Lv Li Qu

作者单位: Department of Electronic and communication Engineering North China Electric Power University Baoding,Hebei Province, China

会议类型: 国际会议

会议名称: 2007 IEEE International Conference on Automation and Lofistics

会议地点: 山东济南

会议语种:英文

在线出版日期: 2007-08-18（万方平台首次上网日期，不代表论文的发表时间）