Robust Video Watermarking Using a Hybrid DCT-DWT Approach
用一条混合 DCT-DWT 途径的柔韧的录像 watermarking作者机构:School of Computer ScienceJiangnan UniversityWuxi 214000
出 版 物:《Journal of Electronic Science and Technology》 (电子科技学刊(英文版))
年 卷 期:2020年第18卷第2期
页 面:179-189页
核心收录:
学科分类:0839[工学-网络空间安全] 08[工学] 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)]
基 金:supported by the National Natural Science Foundation of China under Grant No.61304264 Jiangnan University of Science&Technology Young Scholar under Grant No.JUSRP11462
摘 要:In order to solve the limitations of the digital video watermarking algorithm,this paper proposes a new robust video watermarking algorithm using combining discrete cosine transform(DCT)and discrete wavelet transform(DWT)*** of all,the video frames are randomly selected and then the DCT algorithm is applied to the selected video *** that,the first column of the selected video frames is scrambled using the Arnold ***,every column with 4 direct current(DC)coefficients is reshaped and transformed into four different sub-bands using the DWT ***,the watermark is embedded into the approximation(LL)*** proposed algorithm is easy to carry out because it provides random frames with no special requirements for video *** experiment results indicate that this algorithm can resist against different kinds of watermarking attacks,such as the Gaussian filter attack and sharpen *** addition,it also illustrates that the proposed algorithm has a better result than some other watermarking algorithms.