查询词典 watermark

The results showed that the algorithm realizes the watermark's imbedding and extracting; it also is robust. The digital watermarking technology can be used to protect the security of digital images and the copyright.

结果证明该算法能够实现数字水印的提取和检测，并具有较强抵抗常见攻击的能力，鲁棒性较好，能够实现初步的数字图像的防伪和版权保护。

The concept and method of two-layer gridding partition of an image were discussed, and then the watermark imbedding function of singular value decomposition based single-layer watermarking algorithm was created.

讨论了图像双层网格划分的概念和方法，对基于奇异值分解的单层水印算法中的水印嵌入函数进行了改进。

The key of digital watermark to copyright protection is the imperceptibility and robustness for embedded information.

用于版权保护的数字水印设计的关键是水印信息嵌入的隐蔽性和抵抗攻击的鲁棒性。

Imperceptibility and robustness, which are the basic requirements of digital watermark, conflict with each other.

不可察觉性和鲁棒性是图像水印中基本要求，但它们却是一对互相制约的因素。

Quantity of experiment data shows that both of these two algorithms have good robustness, and the imperceptibility of watermark can be guaranteed at the same time.

实验结果表明，所提的两种算法都具有良好的鲁棒性，同时也很好地保证了水印的不可见性。

Owing to it of special, moer and more people consider it to be the way to improve the imperceptibility and robustness of the watermark system.

近年来，SVD在数字水印领域的应用越来越广泛，鉴于它的特殊性，越来越多的人把它作为提高水印系统不可见性和鲁棒性的主要手段。

After make a deep research on robustness and imperceptibility of digital watermark for multimedia in this paper, the author figures...

将谐波恢复算法和基于混沌的弱信号检测方法成功地应用在数字水印系统中，为研究数字水印的鲁棒性和不可感知性提供了新思路。

The experimental results show that the watermark can not be destroyed easily and the algorithm is robust and imperceptible.

实验结果表明该算法水印不易破坏，对数字音频信号的低通滤波、迭加噪声等攻击均具有很好的隐蔽性和稳健性。

This finished the embedding process, and the test results show that this algorithm has certain imperceptivity and robustness. Because of the same embedding intensity, on one hand, it leads to the decline of the quality of the carrier image and influence the transparency and robustness of the watermark.

在此基础上，本文介绍了一种传统的基于小波变换的数字水印算法，这种算法将数字水印小波分解后的各个子带，嵌入到原始载体图像第三级小波子带中去，实现了水印的嵌入，试验结果显示该算法具有一定的不可见性和鲁棒性。

Experimental results show that the algorithm has a fine imperceptivity of watermark embedded and is strongly robust to attacks such as re-sampling, color dithering, smoothing, noise adding, and JPEG-compression.

实验结果表明：该算法具有很好的水印不可见性，对常见的图像处理攻击：如重采样、颜色抖动、平滑、加噪声和 JPEG 压缩等具有很强的稳健性。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。