Image Watermarking Algorithm Based on Wavelet Transform
Image Watermarking Algorithm Based on Wavelet Transform
基于分形理论的小波域视频水印方法
本发明涉及视频图像处理技术领域,尤其涉及一种基于分形理论的小波域视频水印方法。在水印的嵌入过程中,首先分别对提取的关键帧和水印图像同时进行小波变换并进行小波树D和小波树R分解,然后直接乘以强度系数对应嵌入其中。本发明的基于分形理论的小波域视频水印方法提供了一种向视频中嵌入水印的方法,能够对视频版权进行有效的保护,解决了视频容量大、计算复杂度高,水印嵌入困难的 …
Nonlinear Hydroelastic Waves beneath a Floating Ice Sheet in a Fluid of Finite Depth
The nonlinear hydroelastic waves propagating beneath an infinite ice sheet floating on an inviscid fluid of finite depth are investigated analytically. The approximate series …
An Efficient Video Watermark Method Using Blockchain
Nowadays, one of the most common approaches for video watermarking is to use singular value decomposition in the discrete wavelet transform domain. In our prior work, we formulated …