WATERMARKING AUTHENTICATION:USING THE FRAGILE MODE OR THE ROBUST MODE?  

作　　者：Chen Dan Wu Qianhong Wang Yumin 

机构地区：[1]State Key Lab on ISN, Xidian University, Xi＇an 710071, China

出　　处：《Journal of Electronics(China)》2006年第4期549-553,共5页电子科学学刊（英文版）

摘　　要：Due to the lack of a unified authentication model certain mistakes occurred in the use of the wa-termarking authentication methods. To clarify the confusion, authentication models of robust and fragile wa-termarking are developed respectively in the paper. Concrete algorithms are proposed to prove the models that different Discrete Wavelet Transform (DWT) domains are utilized to embed the watermarks and quanti-zation method is presented with Just Notice Differences (JNDs) threshold as the quantization size. After the key technologies about the two methods are discussed, we detail the comparison of the two modes and rec-ommend their respective application scenarios as applicable results.Due to the lack of a unified authentication model certain mistakes occurred in the use of the watermarking authentication methods. To clarify the confusion, authentication models of robust and fragile watermarking are developed respectively in the paper. Concrete algorithms are proposed to prove the models that different Discrete Wavelet Transform （DWT） domains are utilized to embed the watermarks and quantization method is presented with Just Notice Differences （JNDs） threshold as the quantization size. After the key technologies about the two methods are discussed, we detail the comparison of the two modes and recommend their respective application scenarios as applicable results.

关 键 词：Watermarking authentication Robust watermarking Fragile watermarking 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]