噪

And the attributes, classing and applying matter of digital watermarking technology is presented in a nutshell. Some typical algorithms and performance is analyzed. Then three algorithms based on DCT are carried out.

然后在MATLAB环境中实现了三种基于DCT的数字水印算法，并通过各种常见的图像处理、压缩、剪切和加噪等各种攻击实验验证了这三种算法所生成水印的性能。

My voice cleaves to my throat,and sob chokes my utterance.

我的噪子哽咽，泣不成声。

The authors analyze the chaotic characters of the Duffing equation coacted on by the periodic stimulating force and band-limited white noise.

对经典Duffing方程在周期激励和限带白噪同时作用下的混沌性质进行分析。

Experiments on synthetic images with low signal-to-noise ratio and scene images show good performance and robustness of the approach, especially it's capabilities of capturing the discontinuous boundary and moving snakes into boundary concavities.

对人工合成的低信噪比图像及景物图像的实验表明本文方法具有很好的性能及鲁棒性，特别是在处理目标边缘不连续及有凹形边缘时更显示了其优越的性能。

Experiments on synthetic images with low signal-to-noise ratio images and nature images show good performmance and robust of the approach, especially it's capable to capture the discontinuous boundary and move snakes into boundary concavities.

对人工合成的低信噪比图像及自然图像的实验表明，本文方法性能良好，工作稳定，具有较强的处理边缘不连续及进入凹形边缘能力。

Firstly the face image convolves Gabor filter bank to obtain Gabor feature.

首先对 Gabor 滤波噪组提出来的人脸特征进行组合构造 Gabor 特征图像，然后利用正交伪 Zernike 矩获得不变性特征，并进一步用线性判别分析方法进行特征选择，最后采用最近邻分类方法进行识别。

As if noise and detail levels weren't bad enough from the latest batch of digital cameras based around the 8 megapixel Sharp CCD they've today announced one that crams even more pixels into tiny package.

电脑中译本，语法可会有问题：从最新批800万像素数位相机已有很差讯噪和细节表演，SHARP今天宣布将更多的象素塞入极小的CCD。

For example, signal-to-noise performance degrades as a result of reduced signal swing.

例如，信噪比由于信号摆幅的减少而降低。

These results suggest that when the demagnetizing energy of soft layer is unavoidablethe application of high Ms soft layer can help to decrease the switching field,maintainthe thermal stability,improve the uniformity,reduce the thickness of interlayer andtotal recording layer,and will not worsen the signal to noise ratio.

研究结果说明当软磁层的退磁能无法避免时，使用较大饱和磁化强度的软磁层有利于降低矫顽力，保持热稳定性，提高介质的均匀性，减小中间层和记录层的厚度，并且对信噪比没有不良影响。

However, QAM has to be demodulated coherently requiring knowledge of the channel distortion on each OFDM subcarrier.

差分解调不需要信道估计，其代价是用适当的信噪比损失换取系统复杂度的降低。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。