水印

My company main products has: Bond paper , the watermark guard against false paper , take colour fibre to guard against false paper , the safety line guards against false paper , bible paper , Bible paper , food wrapping paper, the grape covers with bag special use paper , outlet, special use fruit bag paper and various specification grape cover with a bag , the pear covers with a bag , the peach covers with a bag , the mango covers with a bag.

我公司主要产品有：刚古纸，黑、白水印纸，安全线防伪纸，彩色纤维防伪纸，荧光纤维防伪纸，黑、白水印无碳纸，证券纸，字典纸，刚古纸，高档防油纸，食品包装纸，筷子包装纸，白色葡萄套袋专用纸，各种出口专用水果套袋纸及各种规格葡萄套袋，芒果套袋，柚子套袋，梨套袋

This conclusion can also be proved by spectrum-warping audio watermarking algorithm in MCLT domain. To discuss further deeply on why spectrum-warping technique does not have the required robustness, the studies are carried out upon the essentials of bilinear transformation. All the theoretical analysis and experiments results put the robustness of the spectrum-warping audio watermarking under questioning.

四、提出了基于量化的变换域音频水印算法中关于量化参数的选择方法量化变换系数的音频水印算法是以修改谱分量幅值为基础，算法的主要问题是如何选择量化参数以确保算法的鲁棒性和不可感知性，另外量化系数的区域选择也会影响算法的性能。

Thus, it will not be possible for a bootlegger to verify the removal or corruption of the watermark by simply playing out the content through a watermark detection device.

因此，对于非法贩卖者来说，将不可能简单地借助通过水印检测设备播放内容来校验水印是否被除去或破坏。

In this thesis, I introduce the purpose and meaning of my study in this field and also introduce the definition, characteristic, class and use firstly.

本文首先介绍了该论文课题研究的目的和意义，以及数字水印技术的基本概念、特性、分类、用途等，接着介绍了主要的水印攻击方式以及相应的对策，然后介绍了小波变换的基本理论，包括连续小波变换、离散小波变换、多分辨分析、Mallat算法等。

In the discrete wavelet transform domain, the watermark information is embedded by quantifying the coefficient of the transform domain andthe watermark can be extracted without the original audio.

在离散小波变换域水印嵌入算法中，本文给出了小波变换域系数均值量化的水印嵌入方案。

In the discrete cosine domain, the watermark is embedded by quantifying the coefficient of the dct domain, spectrum-spread is applied. the watermark can be extracted without the original audio.

在离散余弦变换域，采用扩频技术通过对变换域系数进行量化来嵌入水印信息，在水印的提取过程中不需要原始音频信号的参与。

Hi the discrete cosine domain, the watermark is embedded by quantifying the coefficient of the DCT domain and the quantification procession is given; the watermark can be extracted without the original audio.

3在离散余弦变换域，通过对变换域系数进行量化来嵌入水印信息，给出了量化方案；在水印的提取过程中不需要原始音频信号的参与。

This dissertation selects two-dimension binary image as watermark information, and selects audio as embedding object, and embed the watermark in the coefficient of the DFT domain, the DCT domain, the DWT domain.

本文以直观的二值图像作为水印信息，以音频数据为嵌入对象，分别在离散傅立叶变换域、离散余弦变换域、离散小波变换域的系数上嵌入水印。

The algorithm performs discrete cosine transform on sub image of host image, which is cover by visible watermarking, and compresses sub image by select the set of visually important DCT coefficients. Then, the algorithm hides the compressed sub image, which is encrypted by the hash function that is constructed by Rijndael code, in the high coefficient of wavelet domain.

算法将水印图像与宿主图像进行融合，并对隐藏子图采用DCT变换，按Zig_Zag排序保留视觉重要DCT系数的方法作压缩处理，并利用Rijndael密码构造单向Hash函数作加密处理，最终分散嵌入到宿主图像的带参数的整数小波域中的高频系数，实现了可见水印的有效嵌入。

The "Chairman Mao Tse Tong Photo"water mark is displayed to deter image theft and will NOT show on the actual photograph.This listing is for a single photograph to be purchased as a collector's item.

"毛泽东主席照片"水印只在刊登物品时显示，不会出现在实际照片上，水印的目的是防止有人盗取图像。

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。