水印

The second method makesfull use of HVS, and is in favor of invisibility and fragileness of the watermark.

这就充分利用了图像中高频信息本身的特点和人的视觉特性，有利于水印的不可见性和易损性。

Experimental results demonstrate that the algorithms are robust and imperceptive at the attack of noise stain, low-pass filtering and sampling again.

仿真实验表明，本课题提出的各种算法能有效地抵抗白噪声污染、色噪声污染、低通滤波和重采样对水印的攻击。

DCT-based Watsons imperceptive watermarking model resisted downsampling attack is presented.

根据DCT域Watson模型提出了一种抵抗下采样攻击的不可感知水印模型。

Finally, this thesis proposed an invertible fragile digital watermarking algorithm to authenticate the integrity of v ector map data.

最后提出并实现了一种可逆的、用于矢量地图数据完整性认证的脆弱数字水印算法。

The Constellation Snow Sacco belongs to the exclusive range which Manter presents in its Wine and Spirit Label Collection, a catalogue which presents more than 73 different self-adhesive papers (watermarked, recycled, felt-marked, laid paper, embossed paper, anti-fraud security paper, contemporary classics, metalized, cast coated colors, coated, synthetic and more).

斯诺的星座萨科属于独家范围的曼特在其葡萄酒与烈酒标签集合，它提出的目录，超过73个不同的自粘文件介绍（水印纸，再生纸，认为标，奠定纸，压纹纸，防诈骗安全文件，当代经典，金属化，铸涂颜色，涂层，合成等）。

Then, according to research on nonisotropic transformation in geometric attack, this *** further spreads the application field of scale-space theory in watermark design and proposes an algorithm against geometric attack grounded on affine invariant feature point.

然后，通过对几何攻击中的非同向性变换的研讨，入一步扩铺尺度空间理论在水印设计中的应用，提出一种基于仿射不变特性点的抗几何攻击算法。

Experimental results show that the watermark is perceptually invisible and the proposed scheme is robust to various image processing operations.

实验结果表明水印是不可感知的，并且对于各种图像处理操作是鲁棒的。

Are read and reversibly embedded into the rest of the image white regions in Fig.

在会前嵌入步骤水印嵌入阶段，部分的LSB值（图黑暗地区最低有效位。4）读取和可逆到的图像

Research of image content based digital watermarking model and algorithm in ridgelet transform domain.

基于图像内容的脊波变换域数字水印模型和算法研究。

In the paper,we study the application of finite ridgelet transform in image processing and propose a algorithm of image denoising and two watermarking algorithms.

本文研究了有限脊波变换在图像处理中的一些应用，提出了一种图像去噪算法和两种水印算法。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。