水印

It is concluded that nonlinear technology is superior to other methods for increasing the stability and determinability of digital wa...

该方法既适用于图象数字水印，也适用于音频数字水印，仿真结果证实了该方法的有效性。

This thesis proposes a lossless digital watermarking algorithm based on Harr wavelet transform, which can recover the original image without any distortion from the marked image after the watermark has been extracted.

提出了基于Harr小波的彩色图像可逆水印算法，采取闭环控制自适应地修改其高频子带系数以嵌入水印。

From the technical content and 防伪性,$ 10 banknotes with a face value of the Olympic Games in commemoration of the adoption of the blue optical variable denomination numbers, anti-false watermarks, holographic location identification, two color engraving tramsformer heterotype numbers, zhuguang design, sculpture gravure business card printing and membership card production, light holographic fenestration security line, offsctdruckereien microform text eight top-level business card printing and membership card technology, in addition to the anti-counterfeiting Watermarking and sculpture gravure business card printing and membership card making, and the other 6 of which the application for the first time in our country's legal tender.

从技艺含度和防伪性来看，10元不背值奥运思念钞拔取了耻辱平变不背额数字、防伪水印、残息定位镂空标记、双色接线同型号码、珠平图案、雕镂不凸版制卡和会员卡制息、平变残息开窗不乱残线、胶印缩微笔墨8项顶级制卡和会员卡制息技艺，不兴防伪水印和雕镂不凸版制卡和会员卡制息，其他6项始度搁置在敌国的法定钱银上。

Considering the requirement of watermarks robustness and imperception, we present a method which can definite the intensity of the image embedded by digital watermark by the content of image.

兼顾数字水印的稳健性和不可见性要求，提出一种根据图像内容确定嵌入数字水印图像强度的方法。

Finally, this paper introduces two kinds of blind watermarking algorithms, and then a new blind watermarking algorithm based on the nonuniform quantization is presented.

最后，本文介绍了两种数字图像盲水印技术，然后提出一种新的基于块均值的非均匀量化数字水印技术。

For 3D model copyright protection, we propose a robust watermarking algorithm for 3D models which embeds watermark information by perturbing the distance between the vertices of the model to the centre of the model.

针对三维模型版权保护应用，我们提出了一种稳健的三维模型水印算法，它通过修改从模型中心到顶点的向量长度来嵌入水印。

We adjust the strength of embedded watermark in according to the visual model in the ridgelet domain.

论文根据小脊变换域中的视觉模型，按照小脊变换域中计算出水印嵌入强度的权重，用扩频的方法来嵌入水印信息。

Digital watermark is embedded into the middle frequency subband images of the original image in discrete wavelet transformation domain.

研究基于小波变换域的数字水印的嵌入对策和检测方法，实现了数字水印自适应地嵌入到原始图像离散小波变换域的中频子带图像中。

We present our own view for the amount of watermarking information, transparence and robustness.

我们认为水印算法的评价项目应针对水印的特性，如鲁棒性、透明性、精确性、计算费用等。

Experiment testify, this Algorithm ensures watermarking transparence and robust, and can be application.

实验结果表明，利用该算法实现的水印系统很好地兼顾了水印的透明性和鲁棒性，具有一定的实用价值。

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。