Multiple Digital Watermarking Algorithm to Protect Digital Images Based on Integer Wavelet Matrix Norm Quantization
会议名称:《2009中国控制与决策会议》
会议日期:2009年
学科分类:08[工学] 0839[工学-网络空间安全] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术(可授工学、理学学位)]
关 键 词:Multiple Digital Watermarking for Digital Image Field Integer Wavelet Transform Matrix Norm Quantization Singular value decomposition Chaotic Scrambling
摘 要:正With the development of computer technology,digital images’ integrity and authenticity are queried more and more *** a protection and authentication technology,digital watermarking technology has been used in image *** this paper,a multiple digital watermarking algorithm is proposed based on integer wavelet transform to protect digital images and estimate its integrity and *** matrix norm quantization,it embeds watermarks into low-frequency,medium-frequency and high-frequency detail sub-bands of images’ integer wavelet domain and it is a blind-testing watermarking *** experiments show that the algorithm not only has both robustness and sensitivity,but also exactly locates distorted area,so it is an effective multiple digital watermarking algorithm.