original covers meaning in Chinese
原封面
Examples
- Today copies of the album with the original cover are worth thousands of dollars
Beatles早期的马桶盖头发型，后来被一些歌星抄袭的造型，就是stuart的女友astrid设计的。 - Based on the svs characteristic analysis of image matrix , a visually recognizable binary image watermark is embedded into maximal singular value coefficient in block - based svd transform domain of the cover image . here we brought forward two primary schemes : one need original signal and the other is blind ( without the original cover ) . experimental results show that our schemes can extract reliable copy of the hidden watermark from images that have been significantly degraded or altered through several common geometric distortions and signal processing operations
本文基于图像矩阵的svd奇异值分解特性分析，提出了在新的svd变换域中进行的数字水印算法，水印信息嵌入到分块变换的最大奇异值分量系数中，应用混沌变换加密和空域置换，改善了空域性能，安全性高；利用图像分块矩阵的奇异值分解稳定性好的特点，采用图像内容自适应方法计算水印的嵌入强度，增强了算法的稳健性；采用二值图像作为有意义水印进行嵌入和检测，水印在感知上是可视的。