查询词典 watermark

The quality of decrypting watermark under the different sizes of encryption keys has been discussed. The simulation results prove the theoretical analysis.

计算和分析了二元位相密钥的空间分布对水印信息提取质量的影响，计算结果验证了理论的正确性。

This algorithm embeds the watermark in the compressed domain.

这个演算法将浮水印隐藏在频率域当中。

By elaborating on the principle, classification and application areas of digital watermark technologies, this paper is aimed to provide readers with a full understanding of the entirely new enciphering technologies.

通过对数字水印技术的原理、分类和应用领域等内容的阐述，使读者能够较全面地了解这种全新加密技术。

In this scheme, two kinds of watermarks are embedded respectively into vertexes coordinates and topological information of 3D mesh, which enables the model to resist against not only large scaled cropping operation but also high strong noising. During the extraction of the watermark, the original model is not necessary.

该算法分别对3D网格模型的顶点信息和拓扑信息嵌入2种不同类型的单鲁棒性水印，从而使模型既能抵抗大面积的剪切攻击，又能抗击一定强度的噪声攻击；且在水印提取时不需要原始模型信息。

I need a filter that overlays an invisible watermark on video stream.

我需要一个过滤器，对视频流覆盖无形的水印。

in this paper ,based on permuted image and svd, we embeddedgray watermark in colour image's dwt components.

本文根据奇异值分解理论把灰度水印嵌入到彩色图像的dwt分量中。

In order to average the spatial distribution of embeddable pixels, by permuting the original image randomly and dividing it into blocks, we embed the same quantity of watermark into every block.

为了均衡可嵌入水印像素的空间分布，对原始图像进行随机排列和分块后，在每一块中嵌入相同数量的水印。

The digital watermark is to prevent pirating.

数码水印图案是用来防止盗版的。

In present watermark system, there are two basic preconditions: one is robustness; the other is transparency.

在现代水印中，对水印有两个基本的要求：鲁棒性和不可见性。

In the algorithm, spited the glyph of Chinese characters to two other's, increasing the content of the document coding redundancy, enhancing the watermark capacity, and by adjusting the properties of characters displaying, enhanced the watermarking imperceptibility.

该算法通过汉字字形的拆分，增加了文档内容编码冗余，提高了水印信道容量，并通过调整汉字显示属性，增强水印的隐蔽性。

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。