Selection Method of Optimum Wavelet Bases for Image Signature

摘要：

The properties of wavelet bases have greatly influence on algorithm performances when wavelet functions are used to construct image signature. Characteristics of image signature, such as robustness, tamper sensitivity, tamper localization, and compactness are analyzed in this work. Moreover, properties of Daubechies wavelet and its decomposition levels are analyzed. According to the results of our study, image signature generated by db1, db2, or db3 show stronger robustness and compactness yet lower tamper sensitivity and tamper localization capability with a higher wavelet decomposition level; and it exhibit higher computational complexity and lower compactness with a higher wavelet vanishing moment. Our results suggest that db2 wavelet is suitable for the construction of image signature, and also, its decomposition level has been recommended.

关键词： Image signature Image authentication Daubechies wavelet Wavelet decomposition level

作者: Xiaofeng Wang Chunni Dou Lihua Tian

作者单位: The School of Science, Xian University of Technology, Xian, Shaanxi, 710048, R.P.China Institute o The School of Science, Xian University of Technology, Xian, Shaanxi, 710048, R.P.China Institute of Artificial Intelligence and Robotics, Xian Jiaotong University, Xian, Shaanxi, 710049

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 960-963

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）