A Novel Zero-Watermark Copyright Authentication Scheme Based on Lifting Wavelet and Harris Corner Detection
A Novel Zero-Watermark Copyright Authentication Scheme Based on Lifting Wavelet and Harris Corner Detection作者机构:College of Soitware Nankai University Tianjin 300071 China College of Information Technical Science Nankai University Tianjin 300071 China
出 版 物:《Wuhan University Journal of Natural Sciences》 (武汉大学学报(自然科学英文版))
年 卷 期:2010年第15卷第5期
页 面:408-414页
学科分类:081203[工学-计算机应用技术] 08[工学] 0835[工学-软件工程] 0812[工学-计算机科学与技术(可授工学、理学学位)]
基 金:Supported by the National Natural Science Foundation of China (60873117) the Key Program of Natural Science Foundation of Tianjin (07JCZDJC06600)
主 题:zero-watermark copyright authentication Harris corner detection integer wavelet transform robustness
摘 要:In this paper,a novel zero-watermark copyright authentication scheme based on Internet public certification system is *** approach utilizes Haar integer wavelet transform based on a lifting scheme and adaptive Harris corner detection to extract image features,which will be used to produce a binary feature map,and the map is very crucial to the generation of watermark registered *** properly choosing the parameters of aforementioned techniques such as the threshold T and the radius of local feature region R,the feature map is so much more stable and distinguishing that it can be used to construct robust *** demonstrate that the proposed scheme is resistant to many kinds of signal processing and malicious attacks such as Gaussian blurring,additive noising,JPEG lossy compression,cropping,scaling and slight rotation *** with a relative scheme such as that of Chang's,the scheme in this paper is more practicable and reliable and can be applied to the area of copyright protection.